..

2025-12-02 11:06:23 +09:00 · 2025-12-02 11:06:23 +09:00 · 22caf64855
commit 22caf64855
parent bf40c42c2c
34 changed files with 4594 additions and 505 deletions
--- a/apps/app/android/app/src/main/AndroidManifest.xml
+++ b/apps/app/android/app/src/main/AndroidManifest.xml
@ -6,20 +6,22 @@
    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
-    
-    <uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES" />
-
+    <uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
+    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" 
+    android:usesPermissionFlags="neverForLocation"/>
+    <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" android:maxSdkVersion="30" />
+    <uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES"
+        android:usesPermissionFlags="neverForLocation" />
    <uses-permission android:name="android.permission.CAMERA"/>
-
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
-    <uses-permission android:name="android.permission.CAMERA"/>
-
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
+
+    
    <queries>
        <intent>
            <action android:name="android.speech.RecognitionService" />
--- a/apps/app/ios/Podfile
+++ b/apps/app/ios/Podfile
@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-# platform :ios, '13.0'
+platform :ios, '13.0'

 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'
--- a/apps/app/ios/Podfile.lock
+++ b/apps/app/ios/Podfile.lock
@ -8,6 +8,8 @@ PODS:
  - CwlCatchException (2.2.1):
    - CwlCatchExceptionSupport (~> 2.2.1)
  - CwlCatchExceptionSupport (2.2.1)
+  - device_info_plus (0.0.1):
+    - Flutter
  - DKImagePickerController/Core (4.3.9):
    - DKImagePickerController/ImageDataManager
    - DKImagePickerController/Resource
@ -109,6 +111,8 @@ PODS:
    - nanopb/encode (= 2.30910.0)
  - nanopb/decode (2.30910.0)
  - nanopb/encode (2.30910.0)
+  - network_info_plus (0.0.1):
+    - Flutter
  - objective_c (0.0.1):
    - Flutter
  - permission_handler_apple (9.3.0):
@ -155,10 +159,13 @@ PODS:
  - webview_flutter_wkwebview (0.0.1):
    - Flutter
    - FlutterMacOS
+  - wifi_iot (0.0.1):
+    - Flutter

 DEPENDENCIES:
  - audioplayers_darwin (from `.symlinks/plugins/audioplayers_darwin/darwin`)
  - bonsoir_darwin (from `.symlinks/plugins/bonsoir_darwin/darwin`)
+  - device_info_plus (from `.symlinks/plugins/device_info_plus/ios`)
  - file_picker (from `.symlinks/plugins/file_picker/ios`)
  - Flutter (from `Flutter`)
  - flutter_local_notifications (from `.symlinks/plugins/flutter_local_notifications/ios`)
@ -166,6 +173,7 @@ DEPENDENCIES:
  - google_mobile_ads (from `.symlinks/plugins/google_mobile_ads/ios`)
  - image_picker_ios (from `.symlinks/plugins/image_picker_ios/ios`)
  - mobile_scanner (from `.symlinks/plugins/mobile_scanner/ios`)
+  - network_info_plus (from `.symlinks/plugins/network_info_plus/ios`)
  - objective_c (from `.symlinks/plugins/objective_c/ios`)
  - permission_handler_apple (from `.symlinks/plugins/permission_handler_apple/ios`)
  - shared_preferences_foundation (from `.symlinks/plugins/shared_preferences_foundation/darwin`)
@ -173,6 +181,7 @@ DEPENDENCIES:
  - sqlite3_flutter_libs (from `.symlinks/plugins/sqlite3_flutter_libs/darwin`)
  - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
  - webview_flutter_wkwebview (from `.symlinks/plugins/webview_flutter_wkwebview/darwin`)
+  - wifi_iot (from `.symlinks/plugins/wifi_iot/ios`)

 SPEC REPOS:
  trunk:
@ -203,6 +212,8 @@ EXTERNAL SOURCES:
    :path: ".symlinks/plugins/audioplayers_darwin/darwin"
  bonsoir_darwin:
    :path: ".symlinks/plugins/bonsoir_darwin/darwin"
+  device_info_plus:
+    :path: ".symlinks/plugins/device_info_plus/ios"
  file_picker:
    :path: ".symlinks/plugins/file_picker/ios"
  Flutter:
@ -217,6 +228,8 @@ EXTERNAL SOURCES:
    :path: ".symlinks/plugins/image_picker_ios/ios"
  mobile_scanner:
    :path: ".symlinks/plugins/mobile_scanner/ios"
+  network_info_plus:
+    :path: ".symlinks/plugins/network_info_plus/ios"
  objective_c:
    :path: ".symlinks/plugins/objective_c/ios"
  permission_handler_apple:
@ -231,12 +244,15 @@ EXTERNAL SOURCES:
    :path: ".symlinks/plugins/url_launcher_ios/ios"
  webview_flutter_wkwebview:
    :path: ".symlinks/plugins/webview_flutter_wkwebview/darwin"
+  wifi_iot:
+    :path: ".symlinks/plugins/wifi_iot/ios"

 SPEC CHECKSUMS:
  audioplayers_darwin: 4027b33a8f471d996c13f71cb77f0b1583b5d923
  bonsoir_darwin: e3b8526c42ca46a885142df84229131dfabea842
  CwlCatchException: 7acc161b299a6de7f0a46a6ed741eae2c8b4d75a
  CwlCatchExceptionSupport: 54ccab8d8c78907b57f99717fb19d4cc3bce02dc
+  device_info_plus: 97af1d7e84681a90d0693e63169a5d50e0839a0d
  DKImagePickerController: 946cec48c7873164274ecc4624d19e3da4c1ef3c
  DKPhotoGallery: b3834fecb755ee09a593d7c9e389d8b5d6deed60
  file_picker: b159e0c068aef54932bb15dc9fd1571818edaf49
@ -259,6 +275,7 @@ SPEC CHECKSUMS:
  MLKitVision: e858c5f125ecc288e4a31127928301eaba9ae0c1
  mobile_scanner: 96e91f2e1fb396bb7df8da40429ba8dfad664740
  nanopb: 438bc412db1928dac798aa6fd75726007be04262
+  network_info_plus: 9d930145451916919786087c4173226363616071
  objective_c: 77e887b5ba1827970907e10e832eec1683f3431d
  permission_handler_apple: 9878588469a2b0d0fc1e048d9f43605f92e6cec2
  PromisesObjC: f5707f49cb48b9636751c5b2e7d227e43fba9f47
@ -270,7 +287,8 @@ SPEC CHECKSUMS:
  SwiftyGif: 706c60cf65fa2bc5ee0313beece843c8eb8194d4
  url_launcher_ios: bb13df5870e8c4234ca12609d04010a21be43dfa
  webview_flutter_wkwebview: 29eb20d43355b48fe7d07113835b9128f84e3af4
+  wifi_iot: b5aafd6f9b52f8a357383a1deabab45f31cd602d

-PODFILE CHECKSUM: 3c63482e143d1b91d2d2560aee9fb04ecc74ac7e
+PODFILE CHECKSUM: 251cb053df7158f337c0712f2ab29f4e0fa474ce

 COCOAPODS: 1.16.2
--- a/apps/app/ios/Runner.xcodeproj/project.pbxproj
+++ b/apps/app/ios/Runner.xcodeproj/project.pbxproj
@ -63,6 +63,7 @@
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		A0F77A962ED7E5CF0058AC51 /* Runner.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = Runner.entitlements; sourceTree = "<group>"; };
 		D4D50D0F4B952368E1319826 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 		F6B684F378DF7FE6F2C3CABC /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@ -139,6 +140,7 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
+				A0F77A962ED7E5CF0058AC51 /* Runner.entitlements */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
@ -161,7 +163,6 @@
 				4E75157E0476F57C9A36AAFF /* Pods-RunnerTests.release.xcconfig */,
 				7CAA68E8ECB59955A38AF698 /* Pods-RunnerTests.profile.xcconfig */,
 			);
-			name = Pods;
 			path = Pods;
 			sourceTree = "<group>";
 		};
@ -488,6 +489,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = TDVYRQ3Z3E;
 				ENABLE_BITCODE = NO;
@ -671,6 +673,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = TDVYRQ3Z3E;
 				ENABLE_BITCODE = NO;
@ -694,6 +697,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = TDVYRQ3Z3E;
 				ENABLE_BITCODE = NO;
--- a/apps/app/ios/Runner/Info.plist
+++ b/apps/app/ios/Runner/Info.plist
@ -50,6 +50,7 @@
 	<key>NSBonjourServices</key>
 	<array>
 		<string>_playwith._tcp</string>
+		<string>_playwith._udp</string> 
 	</array>
 	<key>GADApplicationIdentifier</key>
 		<string>ca-app-pub-3940256099942544~1458002511</string>
@ -67,5 +68,16 @@
 		<string>정답을 음성으로 말하기 위해 마이크 권한이 필요합니다.</string>
 	<key>NSSpeechRecognitionUsageDescription</key>
 		<string>말한 내용을 텍스트로 변환하여 정답을 확인합니다.</string>
+	<key>com.apple.developer.networking.wifi-info</key>
+		<true/>
+	<key>NEHotspotConfiguration</key> 
+		<true/>
+		<key>NSBluetoothAlwaysUsageDescription</key>
+<string>주변 친구를 찾기 위해 블루투스를 사용합니다.</string>
+<key>NSBluetoothPeripheralUsageDescription</key>
+<string>주변 친구를 찾기 위해 블루투스를 사용합니다.</string>
+<key>NSLocalNetworkUsageDescription</key>
+<string>로컬 통신을 위해 필요합니다.</string>
+
 </dict>
 </plist>
--- a/apps/app/ios/Runner/Runner.entitlements
+++ b/apps/app/ios/Runner/Runner.entitlements
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.networking.HotspotConfiguration</key>
+	<true/>
+</dict>
+</plist>
--- a/apps/app/lib/lobby_screen.dart
+++ b/apps/app/lib/lobby_screen.dart
@ -1,10 +1,14 @@
 import 'dart:convert';
+import 'dart:io';
 import 'package:bonsoir/bonsoir.dart';
 import 'package:flutter/material.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
 import 'package:playwith_core/playwith_core.dart';
-import 'package:qr_flutter/qr_flutter.dart';

+import 'package:qr_flutter/qr_flutter.dart';
+import 'package:wifi_iot/wifi_iot.dart';
+import 'package:network_info_plus/network_info_plus.dart';
+import 'package:permission_handler/permission_handler.dart';

 class LobbyScreen extends StatefulWidget {
  const LobbyScreen({super.key});
@ -28,7 +32,6 @@ class _LobbyScreenState extends State<LobbyScreen> {
        _logs.add(log);
        if (_logs.length > 100) _logs.removeAt(0);
      });
-      
      if (SettingsNotifier().isShowDebugLog) {
        WidgetsBinding.instance.addPostFrameCallback((_) {
          if (_scrollController.hasClients) {
@ -45,40 +48,89 @@ class _LobbyScreenState extends State<LobbyScreen> {
    _net.messageStream.listen((data) {
      if (data['type'] == 'GAME_START') {
        final String gameId = data['gameId'];
-        
-        if (gameId == 'quiz_ox' || gameId == 'quiz_mix') {
-          _startGameAndNavigate(QuizGame());
-        } 
-        else if (gameId == 'sudoku_battle') {
-          _startGameAndNavigate(SudokuMultiGame());
-        }
-        else if (gameId == 'spider_battle') {
-          _startGameAndNavigate(SpiderMultiGame());
-        }
-        // [추가] 오목 & 장기 연결
-        else if (gameId == 'omok') {
-          _startGameAndNavigate(OmokGame());
-        }
-        else if (gameId == 'janggi') {
-          _startGameAndNavigate(JanggiGame());
-        }
-        else if (gameId == 'yutnori') {
-          _startGameAndNavigate(YutnoriGame());
-        }
-        else if (gameId == 'memory_battle') {
-          _startGameAndNavigate(MemoryGame());
-        }
-        // [추가] 밸런스 & 터치 배틀 연결
-        else if (gameId == 'balance_game') {
-          _startGameAndNavigate(BalanceGame());
-        }
-        else if (gameId == 'tap_battle') {
-          _startGameAndNavigate(TapBattleGame());
-        }
+        _routeToGame(gameId);
      }
    });
  }

+
+Future<int?> _showSpiderDifficultyDialog() {
+    return showDialog<int>(
+      context: context,
+      barrierDismissible: false,
+      builder: (context) => AlertDialog(
+        title: const Text("스파이더 난이도"),
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            ListTile(
+              title: const Text("초급 (1가지 무늬)"),
+              subtitle: const Text("스페이드만 사용"),
+              leading: const Icon(Icons.looks_one, color: Colors.green),
+              onTap: () => Navigator.pop(context, 1),
+            ),
+            ListTile(
+              title: const Text("중급 (2가지 무늬)"),
+              subtitle: const Text("스페이드 + 하트"),
+              leading: const Icon(Icons.looks_two, color: Colors.orange),
+              onTap: () => Navigator.pop(context, 2),
+            ),
+            ListTile(
+              title: const Text("고급 (4가지 무늬)"),
+              subtitle: const Text("모든 무늬 사용"),
+              leading: const Icon(Icons.looks_4, color: Colors.red),
+              onTap: () => Navigator.pop(context, 4),
+            ),
+          ],
+        ),
+        actions: [TextButton(onPressed: () => Navigator.pop(context, null), child: const Text("취소"))],
+      ),
+    );
+  }
+
+  void _routeToGame(String gameId) {
+    if (gameId == 'quiz_ox' || gameId == 'quiz_mix') {
+      _startGameAndNavigate(QuizGame());
+    } else if (gameId == 'sudoku_battle') {
+      _startGameAndNavigate(SudokuMultiGame());
+    } else if (gameId == 'spider_battle') {
+      _startGameAndNavigate(SpiderMultiGame());
+    } else if (gameId == 'omok') {
+      _startGameAndNavigate(OmokGame());
+    } else if (gameId == 'janggi') {
+      _startGameAndNavigate(JanggiGame());
+    } else if (gameId == 'yutnori') {
+      _startGameAndNavigate(YutnoriGame());
+    } else if (gameId == 'memory_battle') {
+      _startGameAndNavigate(MemoryGame());
+    } else if (gameId == 'balance_game') {
+      _startGameAndNavigate(BalanceGame());
+    } else if (gameId == 'tap_battle') {
+      _startGameAndNavigate(TapBattleGame());
+    } else if (gameId == 'world_tour') {
+      _startGameAndNavigate(WorldTourGame());
+    } else if (gameId == 'othello') {
+          _startGameAndNavigate(OthelloGame());
+    } else if (gameId == 'arkanoid') {
+          _startGameAndNavigate(ArkanoidGame());
+    }else if (gameId == 'math_run') {
+      _startGameAndNavigate(MathRunGame());
+    }
+    else if (gameId == 'jump_battle') {
+      _startGameAndNavigate(JumpGame());
+    }
+    // [추가] 아이엠그라운드 연결
+    else if (gameId == 'iam_ground') {
+          _startGameAndNavigate(IAmGroundGame());
+    }
+    else if (gameId == 'survivor') {
+      _startGameAndNavigate(SurvivorGame());
+    }
+    else if (gameId == 'sequence_memory') {
+      _startGameAndNavigate(SequenceMemoryGame());
+    }
+  }
+
  Future<void> _startGameAndNavigate(BaseGame game) async {
    if (!mounted) return;
    game.onStart();
@ -96,7 +148,6 @@ class _LobbyScreenState extends State<LobbyScreen> {
          children: [
            gameView,
            const SafeArea(
-              // 배너 광고 높이만큼 띄워서 채팅창 표시
              child: GameChatOverlay(bottomOffset: 60.0),
            ),
          ],
@ -104,8 +155,6 @@ class _LobbyScreenState extends State<LobbyScreen> {
      }),
    );

-    // [수정] 게임 종료 후 복귀 시 로직
-    // 솔로 모드였다면 네트워크를 종료하고 초기 화면으로 돌아감
    if (_net.hostIp == "Solo Mode") {
      _net.stopNetwork();
    }
@ -117,16 +166,21 @@ class _LobbyScreenState extends State<LobbyScreen> {
      MaterialPageRoute(
        builder: (context) => GameSelectionScreen(
          onGameSelected: (gameId) async {
-            // 스도쿠 선택 시 난이도 팝업
            Map<String, dynamic> config = {};
            if (gameId == 'sudoku_battle') {
              final difficulty = await _showDifficultyDialog();
-              if (difficulty == null) return; // 취소함
+              if (difficulty == null) return;
              config['difficulty'] = difficulty;
            }
+// [추가] 스파이더 난이도
+            else if (gameId == 'spider_battle') {
+              final suits = await _showSpiderDifficultyDialog();
+              if (suits == null) return;
+              config['difficulty'] = suits; // numSuits (1, 2, 4)
+            }

            if (!mounted) return;
-            Navigator.pop(context); // 선택 화면 닫기
+            Navigator.pop(context); 
            
            if (isSolo) {
              _net.startSoloMode(gameId, config: config);
@ -144,7 +198,6 @@ class _LobbyScreenState extends State<LobbyScreen> {
    );
  }

-  // [추가] 난이도 선택 다이얼로그
  Future<int?> _showDifficultyDialog() {
    return showDialog<int>(
      context: context,
@ -154,39 +207,44 @@ class _LobbyScreenState extends State<LobbyScreen> {
        content: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
-            ListTile(
-              title: const Text("쉬움"),
-              leading: const Icon(Icons.filter_1, color: Colors.green),
-              onTap: () => Navigator.pop(context, 4),
-            ),
-            ListTile(
-              title: const Text("보통"),
-              leading: const Icon(Icons.filter_2, color: Colors.blue),
-              onTap: () => Navigator.pop(context, 5), // 4~5 레벨이 보통 9x9
-            ),
-            ListTile(
-              title: const Text("약간 어려움"),
-              leading: const Icon(Icons.filter_3, color: Colors.red),
-              onTap: () => Navigator.pop(context, 6), // 7 레벨이 어려움
-            ),
-            ListTile(
-              title: const Text("약간 어려움"),
-              leading: const Icon(Icons.filter_4, color: Colors.red),
-              onTap: () => Navigator.pop(context, 7), // 7 레벨이 어려움
-            ),
-            ListTile(
-              title: const Text("개 어려움"),
-              leading: const Icon(Icons.filter_5, color: Colors.red),
-              onTap: () => Navigator.pop(context, 8), // 7 레벨이 어려움
-            ),
+            ListTile(title: const Text("쉬움 (4x4)"), onTap: () => Navigator.pop(context, 1)),
+            ListTile(title: const Text("보통 (9x9)"), onTap: () => Navigator.pop(context, 4)),
+            ListTile(title: const Text("어려움 (9x9)"), onTap: () => Navigator.pop(context, 7)),
          ],
        ),
-        actions: [
-          TextButton(
-            onPressed: () => Navigator.pop(context, null),
-            child: const Text("취소"),
-          )
-        ],
+        actions: [TextButton(onPressed: () => Navigator.pop(context), child: const Text("취소"))],
+      ),
+    );
+  }
+
+  void _openGameSelector() {
+    if (_net.role != NetworkRole.host) return;
+
+    Navigator.push(
+      context,
+      MaterialPageRoute(
+        builder: (context) => GameSelectionScreen(
+          onGameSelected: (gameId) async {
+            Map<String, dynamic> config = {};
+            if (gameId == 'sudoku_battle') {
+              final difficulty = await _showDifficultyDialog();
+              if (difficulty == null) return;
+              config['difficulty'] = difficulty;
+            }
+            else if (gameId == 'spider_battle') {
+              final suits = await _showSpiderDifficultyDialog();
+              if (suits == null) return;
+              config['difficulty'] = suits;
+            }
+
+            if (!mounted) return;
+            Navigator.pop(context);
+            
+            if (_net.role == NetworkRole.host) {
+              _net.selectGame(gameId, config: config);
+            }
+          },
+        ),
      ),
    );
  }
@ -228,9 +286,7 @@ class _LobbyScreenState extends State<LobbyScreen> {
                        : _buildLobbyView()
                  ),
                  const Divider(thickness: 1, height: 1),
-                  
-                  if (SettingsNotifier().isShowDebugLog)
-                    _buildDebugConsole(),
+                  if (SettingsNotifier().isShowDebugLog) _buildDebugConsole(),
                ],
              ),
            );
@ -297,23 +353,33 @@ class _LobbyScreenState extends State<LobbyScreen> {

  Widget _buildLobbyView() {
    final currentGame = AppGames.getById(_net.selectedGameId);
+    final bool isHost = _net.role == NetworkRole.host;

    return Column(
      children: [
-        Container(
-          width: double.infinity,
-          padding: const EdgeInsets.symmetric(vertical: 12, horizontal: 20),
-          color: Colors.indigo.withOpacity(0.1),
-          child: Row(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: [
-              Icon(currentGame.icon, size: 20, color: Colors.indigo),
-              const SizedBox(width: 8),
-              Text(
-                "선택된 게임: ${currentGame.name}",
-                style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold, color: Colors.indigo),
-              ),
-            ],
+        GestureDetector(
+          onTap: isHost ? _openGameSelector : null,
+          child: Container(
+            width: double.infinity,
+            padding: const EdgeInsets.symmetric(vertical: 12, horizontal: 20),
+            color: Colors.indigo.withOpacity(0.1),
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Icon(currentGame.icon, size: 24, color: Colors.indigo),
+                const SizedBox(width: 10),
+                Column(
+                  children: [
+                    Text(
+                      "현재 게임: ${currentGame.name}",
+                      style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold, color: Colors.indigo),
+                    ),
+                    if (isHost)
+                      const Text("(눌러서 변경)", style: TextStyle(fontSize: 12, color: Colors.grey)),
+                  ],
+                ),
+              ],
+            ),
          ),
        ),

@ -326,15 +392,15 @@ class _LobbyScreenState extends State<LobbyScreen> {
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
-                  Icon(_net.role == NetworkRole.host ? Icons.wifi_tethering : Icons.wifi, color: Colors.blue),
+                  Icon(isHost ? Icons.wifi_tethering : Icons.wifi, color: Colors.blue),
                  const SizedBox(width: 10),
                  Text(
-                    _net.role == NetworkRole.host ? "👑 방장 (나)" : "참가자 (나)",
+                    isHost ? "👑 방장 (나)" : "참가자 (나)",
                    style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                  ),
                ],
              ),
-              if (_net.role == NetworkRole.host) ...[
+              if (isHost) ...[
                 const SizedBox(height: 10),
                 Row(
                   mainAxisAlignment: MainAxisAlignment.center,
@ -350,8 +416,11 @@ class _LobbyScreenState extends State<LobbyScreen> {
                     )
                   ],
                 ),
-                 const SizedBox(height: 5),
-                 const Text("QR 코드를 눌러 친구를 초대하세요!", style: TextStyle(fontSize: 12, color: Colors.grey)),
+                 TextButton.icon(
+                   icon: const Icon(Icons.wifi_password),
+                   label: const Text("핫스팟(야외용) QR 만들기"),
+                   onPressed: () => _showHotspotCreateDialog(),
+                 ),
              ] else ...[
                const SizedBox(height: 10),
                Text("방장 IP: ${_net.hostIp ?? '...'}", style: const TextStyle(color: Colors.grey)),
@ -369,7 +438,7 @@ class _LobbyScreenState extends State<LobbyScreen> {
              _buildUserTile(_net.me, isMe: true),
              ..._net.guestList.map((guest) => _buildUserTile(guest, isMe: false)),
              
-              if (_net.guestList.isEmpty && _net.role == NetworkRole.host)
+              if (_net.guestList.isEmpty && isHost)
                const Padding(
                  padding: EdgeInsets.all(40.0),
                  child: Center(child: Text("참가자를 기다리는 중...\nQR 코드를 보여주세요.", textAlign: TextAlign.center, style: TextStyle(color: Colors.grey))),
@ -412,6 +481,7 @@ class _LobbyScreenState extends State<LobbyScreen> {
  Widget _buildReadyButton() {
    bool isReady = _net.me.isReady;
    bool canReady = _net.role == NetworkRole.host ? _net.guestList.isNotEmpty : true; 
+    if (_net.hostIp == "Solo Mode") canReady = true;

    return Container(
      width: double.infinity,
@ -466,10 +536,52 @@ class _LobbyScreenState extends State<LobbyScreen> {
    );
  }

+  void _showHotspotCreateDialog() {
+    final ssidCtrl = TextEditingController();
+    final pwCtrl = TextEditingController();
+
+    showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: const Text("핫스팟 QR 만들기"),
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            const Text("스마트폰 설정에서 핫스팟을 켜고,\n그 정보를 입력해주세요.", style: TextStyle(fontSize: 12, color: Colors.grey)),
+            const SizedBox(height: 10),
+            TextField(controller: ssidCtrl, decoration: const InputDecoration(labelText: "핫스팟 이름 (SSID)")),
+            TextField(controller: pwCtrl, decoration: const InputDecoration(labelText: "비밀번호")),
+          ],
+        ),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(ctx), child: const Text("취소")),
+          ElevatedButton(
+            onPressed: () {
+              if (ssidCtrl.text.isEmpty) return;
+              Navigator.pop(ctx);
+              
+              final Map<String, dynamic> qrData = {
+                'type': 'hotspot_invite',
+                'ssid': ssidCtrl.text,
+                'pwd': pwCtrl.text,
+                'port': _net.hostPort ?? 0,
+              };
+              _showGeneratedQR(jsonEncode(qrData), "핫스팟 + 게임 접속 QR");
+            },
+            child: const Text("생성"),
+          )
+        ],
+      ),
+    );
+  }
+
  void _showHostQRDialog() {
    if (_net.hostIp == null || _net.hostPort == null) return;
    final qrData = jsonEncode({'ip': _net.hostIp, 'port': _net.hostPort});
-    
+    _showGeneratedQR(qrData, "초대 QR 코드 (같은 와이파이)");
+  }
+
+  void _showGeneratedQR(String data, String title) {
    showDialog(
      context: context,
      builder: (context) => Dialog(
@ -479,16 +591,14 @@ class _LobbyScreenState extends State<LobbyScreen> {
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
-              const Text("초대 QR 코드", style: TextStyle(fontSize: 22, fontWeight: FontWeight.bold)),
+              Text(title, style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
              const SizedBox(height: 20),
              Container(
                padding: const EdgeInsets.all(10),
                decoration: BoxDecoration(border: Border.all(color: Colors.black12), borderRadius: BorderRadius.circular(10)),
-                child: QrImageView(data: qrData, version: QrVersions.auto, size: 220.0),
+                child: QrImageView(data: data, version: QrVersions.auto, size: 220.0),
              ),
              const SizedBox(height: 20),
-              SelectableText("IP: ${_net.hostIp}\nPort: ${_net.hostPort}", textAlign: TextAlign.center, style: const TextStyle(color: Colors.grey)),
-              const SizedBox(height: 20),
              ElevatedButton(onPressed: () => Navigator.pop(context), child: const Text("닫기"))
            ],
          ),
@ -497,34 +607,6 @@ class _LobbyScreenState extends State<LobbyScreen> {
    );
  }

-  void _openQRScanner() {
-    bool isScanCompleted = false;
-    Navigator.of(context).push(MaterialPageRoute(
-      builder: (context) => Scaffold(
-        appBar: AppBar(title: const Text("QR 스캔")),
-        body: MobileScanner(
-          onDetect: (capture) {
-            if (isScanCompleted) return;
-            for (final barcode in capture.barcodes) {
-              if (barcode.rawValue != null) {
-                try {
-                  final data = jsonDecode(barcode.rawValue!);
-                  if (data['ip'] != null && data['port'] != null) {
-                    isScanCompleted = true;
-                    Navigator.pop(context);
-                    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("접속 중...")));
-                    _net.joinRoom(data['ip'], data['port']);
-                    return;
-                  }
-                } catch (e) {}
-              }
-            }
-          },
-        ),
-      ),
-    ));
-  }
-
  void _showRoomListDialog() {
    showDialog(
      context: context,
@ -565,6 +647,97 @@ class _LobbyScreenState extends State<LobbyScreen> {
    );
  }

+  void _openQRScanner() {
+    bool isScanCompleted = false;
+    Navigator.of(context).push(MaterialPageRoute(
+      builder: (context) => Scaffold(
+        appBar: AppBar(title: const Text("QR 스캔")),
+        body: MobileScanner(
+          onDetect: (capture) async {
+            if (isScanCompleted) return;
+            final List<Barcode> barcodes = capture.barcodes;
+            
+            for (final barcode in barcodes) {
+              final String? rawValue = barcode.rawValue;
+              if (rawValue == null) continue;
+
+              try {
+                final data = jsonDecode(rawValue);
+
+                // 핫스팟 자동 접속
+                if (data['type'] == 'hotspot_invite') {
+                  isScanCompleted = true;
+                  await _connectToHotspotAndJoin(
+                    data['ssid'], 
+                    data['pwd'], 
+                    data['port']
+                  );
+                  return;
+                }
+                
+                // 일반 게임 접속
+                if (data['ip'] != null && data['port'] != null) {
+                  isScanCompleted = true;
+                  Navigator.pop(context);
+                  ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("접속 중...")));
+                  _net.joinRoom(data['ip'], data['port']);
+                  return;
+                }
+              } catch (e) {
+                // JSON 아님
+              }
+            }
+          },
+        ),
+      ),
+    ));
+  }
+
+  Future<void> _connectToHotspotAndJoin(String ssid, String pwd, int port) async {
+    if (Platform.isAndroid) {
+      var status = await Permission.location.request();
+      if (!status.isGranted) return;
+    }
+
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(content: Text("핫스팟 '$ssid' 연결 시도 중...")),
+    );
+
+    try {
+      bool connected = await WiFiForIoTPlugin.connect(
+        ssid,
+        password: pwd,
+        security: NetworkSecurity.WPA,
+        joinOnce: true, 
+        withInternet: false, 
+      );
+
+      if (connected) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text("와이파이 연결 성공! 방장을 찾는 중...")),
+        );
+        
+        final info = NetworkInfo();
+        String? gatewayIp = await info.getWifiGatewayIP();
+        
+        if (gatewayIp != null) {
+          await Future.delayed(const Duration(seconds: 1));
+          if (!mounted) return;
+          Navigator.pop(context); 
+          _net.joinRoom(gatewayIp, port);
+        } else {
+          throw Exception("방장 IP를 찾을 수 없습니다.");
+        }
+      } else {
+        throw Exception("와이파이 연결 실패.");
+      }
+    } catch (e) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text("오류: $e")),
+      );
+    }
+  }
+
  void _showManualJoinDialog() {
    final ipCtrl = TextEditingController(text: "192.168.");
    final portCtrl = TextEditingController();
--- a/apps/app/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/apps/app/macos/Flutter/GeneratedPluginRegistrant.swift
@ -7,11 +7,13 @@ import Foundation

 import audioplayers_darwin
 import bonsoir_darwin
+import device_info_plus
 import file_picker
 import file_selector_macos
 import flutter_local_notifications
 import gal
 import mobile_scanner
+import network_info_plus
 import shared_preferences_foundation
 import speech_to_text
 import sqlite3_flutter_libs
@ -21,11 +23,13 @@ import webview_flutter_wkwebview
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
  AudioplayersDarwinPlugin.register(with: registry.registrar(forPlugin: "AudioplayersDarwinPlugin"))
  SwiftBonsoirPlugin.register(with: registry.registrar(forPlugin: "SwiftBonsoirPlugin"))
+  DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
  FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
  FileSelectorPlugin.register(with: registry.registrar(forPlugin: "FileSelectorPlugin"))
  FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
  GalPlugin.register(with: registry.registrar(forPlugin: "GalPlugin"))
  MobileScannerPlugin.register(with: registry.registrar(forPlugin: "MobileScannerPlugin"))
+  NetworkInfoPlusPlugin.register(with: registry.registrar(forPlugin: "NetworkInfoPlusPlugin"))
  SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
  SpeechToTextPlugin.register(with: registry.registrar(forPlugin: "SpeechToTextPlugin"))
  Sqlite3FlutterLibsPlugin.register(with: registry.registrar(forPlugin: "Sqlite3FlutterLibsPlugin"))
--- a/apps/app/macos/Podfile
+++ b/apps/app/macos/Podfile
@ -1,4 +1,4 @@
-platform :osx, '10.15'
+platform :osx, '12.0'

 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'
--- a/apps/app/macos/Podfile.lock
+++ b/apps/app/macos/Podfile.lock
@ -0,0 +1,136 @@
+PODS:
+  - audioplayers_darwin (0.0.1):
+    - Flutter
+    - FlutterMacOS
+  - bonsoir_darwin (0.0.1):
+    - Flutter
+    - FlutterMacOS
+  - CwlCatchException (2.2.1):
+    - CwlCatchExceptionSupport (~> 2.2.1)
+  - CwlCatchExceptionSupport (2.2.1)
+  - file_picker (0.0.1):
+    - FlutterMacOS
+  - file_selector_macos (0.0.1):
+    - FlutterMacOS
+  - flutter_local_notifications (0.0.1):
+    - FlutterMacOS
+  - FlutterMacOS (1.0.0)
+  - gal (1.0.0):
+    - Flutter
+    - FlutterMacOS
+  - mobile_scanner (5.2.3):
+    - FlutterMacOS
+  - objective_c (0.0.1):
+    - FlutterMacOS
+  - shared_preferences_foundation (0.0.1):
+    - Flutter
+    - FlutterMacOS
+  - speech_to_text (7.2.0):
+    - CwlCatchException
+    - Flutter
+    - FlutterMacOS
+  - sqlite3 (3.50.4):
+    - sqlite3/common (= 3.50.4)
+  - sqlite3/common (3.50.4)
+  - sqlite3/dbstatvtab (3.50.4):
+    - sqlite3/common
+  - sqlite3/fts5 (3.50.4):
+    - sqlite3/common
+  - sqlite3/math (3.50.4):
+    - sqlite3/common
+  - sqlite3/perf-threadsafe (3.50.4):
+    - sqlite3/common
+  - sqlite3/rtree (3.50.4):
+    - sqlite3/common
+  - sqlite3/session (3.50.4):
+    - sqlite3/common
+  - sqlite3_flutter_libs (0.0.1):
+    - Flutter
+    - FlutterMacOS
+    - sqlite3 (~> 3.50.4)
+    - sqlite3/dbstatvtab
+    - sqlite3/fts5
+    - sqlite3/math
+    - sqlite3/perf-threadsafe
+    - sqlite3/rtree
+    - sqlite3/session
+  - url_launcher_macos (0.0.1):
+    - FlutterMacOS
+  - webview_flutter_wkwebview (0.0.1):
+    - Flutter
+    - FlutterMacOS
+
+DEPENDENCIES:
+  - audioplayers_darwin (from `Flutter/ephemeral/.symlinks/plugins/audioplayers_darwin/darwin`)
+  - bonsoir_darwin (from `Flutter/ephemeral/.symlinks/plugins/bonsoir_darwin/darwin`)
+  - file_picker (from `Flutter/ephemeral/.symlinks/plugins/file_picker/macos`)
+  - file_selector_macos (from `Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos`)
+  - flutter_local_notifications (from `Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos`)
+  - FlutterMacOS (from `Flutter/ephemeral`)
+  - gal (from `Flutter/ephemeral/.symlinks/plugins/gal/darwin`)
+  - mobile_scanner (from `Flutter/ephemeral/.symlinks/plugins/mobile_scanner/macos`)
+  - objective_c (from `Flutter/ephemeral/.symlinks/plugins/objective_c/macos`)
+  - shared_preferences_foundation (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences_foundation/darwin`)
+  - speech_to_text (from `Flutter/ephemeral/.symlinks/plugins/speech_to_text/darwin`)
+  - sqlite3_flutter_libs (from `Flutter/ephemeral/.symlinks/plugins/sqlite3_flutter_libs/darwin`)
+  - url_launcher_macos (from `Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos`)
+  - webview_flutter_wkwebview (from `Flutter/ephemeral/.symlinks/plugins/webview_flutter_wkwebview/darwin`)
+
+SPEC REPOS:
+  trunk:
+    - CwlCatchException
+    - CwlCatchExceptionSupport
+    - sqlite3
+
+EXTERNAL SOURCES:
+  audioplayers_darwin:
+    :path: Flutter/ephemeral/.symlinks/plugins/audioplayers_darwin/darwin
+  bonsoir_darwin:
+    :path: Flutter/ephemeral/.symlinks/plugins/bonsoir_darwin/darwin
+  file_picker:
+    :path: Flutter/ephemeral/.symlinks/plugins/file_picker/macos
+  file_selector_macos:
+    :path: Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos
+  flutter_local_notifications:
+    :path: Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos
+  FlutterMacOS:
+    :path: Flutter/ephemeral
+  gal:
+    :path: Flutter/ephemeral/.symlinks/plugins/gal/darwin
+  mobile_scanner:
+    :path: Flutter/ephemeral/.symlinks/plugins/mobile_scanner/macos
+  objective_c:
+    :path: Flutter/ephemeral/.symlinks/plugins/objective_c/macos
+  shared_preferences_foundation:
+    :path: Flutter/ephemeral/.symlinks/plugins/shared_preferences_foundation/darwin
+  speech_to_text:
+    :path: Flutter/ephemeral/.symlinks/plugins/speech_to_text/darwin
+  sqlite3_flutter_libs:
+    :path: Flutter/ephemeral/.symlinks/plugins/sqlite3_flutter_libs/darwin
+  url_launcher_macos:
+    :path: Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos
+  webview_flutter_wkwebview:
+    :path: Flutter/ephemeral/.symlinks/plugins/webview_flutter_wkwebview/darwin
+
+SPEC CHECKSUMS:
+  audioplayers_darwin: 4027b33a8f471d996c13f71cb77f0b1583b5d923
+  bonsoir_darwin: e3b8526c42ca46a885142df84229131dfabea842
+  CwlCatchException: 7acc161b299a6de7f0a46a6ed741eae2c8b4d75a
+  CwlCatchExceptionSupport: 54ccab8d8c78907b57f99717fb19d4cc3bce02dc
+  file_picker: e716a70a9fe5fd9e09ebc922d7541464289443af
+  file_selector_macos: 3e56eaea051180007b900eacb006686fd54da150
+  flutter_local_notifications: 4b427ffabf278fc6ea9484c97505e231166927a5
+  FlutterMacOS: d0db08ddef1a9af05a5ec4b724367152bb0500b1
+  gal: 6a522c75909f1244732d4596d11d6a2f86ff37a5
+  mobile_scanner: 0a05256215b047af27b9495db3b77640055e8824
+  objective_c: e5f8194456e8fc943e034d1af00510a1bc29c067
+  shared_preferences_foundation: 5086985c1d43c5ba4d5e69a4e8083a389e2909e6
+  speech_to_text: 87bf9298952e8d9073be1b6aade6d5758db5170c
+  sqlite3: 73513155ec6979715d3904ef53a8d68892d4032b
+  sqlite3_flutter_libs: 86f82662868ee26ff3451f73cac9c5fc2a1f57fa
+  url_launcher_macos: 175a54c831f4375a6cf895875f716ee5af3888ce
+  webview_flutter_wkwebview: 29eb20d43355b48fe7d07113835b9128f84e3af4
+
+PODFILE CHECKSUM: 1e95c36afbfd1cb6423ceca4de7a8e1b256fb6ac
+
+COCOAPODS: 1.16.2
--- a/apps/app/macos/Runner.xcodeproj/project.pbxproj
+++ b/apps/app/macos/Runner.xcodeproj/project.pbxproj
@ -21,12 +21,14 @@
 /* End PBXAggregateTarget section */

 /* Begin PBXBuildFile section */
+		16081A8E490D05A0EB9DCB3B /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = C20AF64D20A0D998576B7391 /* Pods_Runner.framework */; };
 		331C80D8294CF71000263BE5 /* RunnerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 331C80D7294CF71000263BE5 /* RunnerTests.swift */; };
 		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
 		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
 		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
 		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
 		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+		868F63F0C0F04AA311C4DEB8 /* Pods_RunnerTests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8AA200BBA16E846EF02EA220 /* Pods_RunnerTests.framework */; };
 /* End PBXBuildFile section */

 /* Begin PBXContainerItemProxy section */
@ -60,11 +62,12 @@
 /* End PBXCopyFilesBuildPhase section */

 /* Begin PBXFileReference section */
+		2FD6D31AB2013B75CB16C72F /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
 		331C80D5294CF71000263BE5 /* RunnerTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = RunnerTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		331C80D7294CF71000263BE5 /* RunnerTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RunnerTests.swift; sourceTree = "<group>"; };
 		333000ED22D3DE5D00554162 /* Warnings.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Warnings.xcconfig; sourceTree = "<group>"; };
 		335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
-		33CC10ED2044A3C60003C045 /* playwith_app.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "playwith_app.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		33CC10ED2044A3C60003C045 /* playwith_app.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = playwith_app.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
 		33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
@ -76,8 +79,15 @@
 		33E51913231747F40026EE4D /* DebugProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = DebugProfile.entitlements; sourceTree = "<group>"; };
 		33E51914231749380026EE4D /* Release.entitlements */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.entitlements; path = Release.entitlements; sourceTree = "<group>"; };
 		33E5194F232828860026EE4D /* AppInfo.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = AppInfo.xcconfig; sourceTree = "<group>"; };
+		5CCBBFA4C427193DF37044DA /* Pods-RunnerTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.debug.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.debug.xcconfig"; sourceTree = "<group>"; };
+		5F844C09FCD307AF262BDB41 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Release.xcconfig; sourceTree = "<group>"; };
+		86F5450344B9BE2273976B6B /* Pods-RunnerTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.release.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.release.xcconfig"; sourceTree = "<group>"; };
+		8AA200BBA16E846EF02EA220 /* Pods_RunnerTests.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_RunnerTests.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		8B9DF8C58AFF7B81844064AC /* Pods-RunnerTests.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.profile.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.profile.xcconfig"; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; path = Debug.xcconfig; sourceTree = "<group>"; };
+		BD1BC5FF85A673AC7738F6DF /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
+		C20AF64D20A0D998576B7391 /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */

 /* Begin PBXFrameworksBuildPhase section */
@ -85,6 +95,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				868F63F0C0F04AA311C4DEB8 /* Pods_RunnerTests.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@ -92,6 +103,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				16081A8E490D05A0EB9DCB3B /* Pods_Runner.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@ -125,6 +137,7 @@
 				331C80D6294CF71000263BE5 /* RunnerTests */,
 				33CC10EE2044A3C60003C045 /* Products */,
 				D73912EC22F37F3D000D13A0 /* Frameworks */,
+				855AC529D1809DF3B555D40F /* Pods */,
 			);
 			sourceTree = "<group>";
 		};
@ -172,9 +185,25 @@
 			path = Runner;
 			sourceTree = "<group>";
 		};
+		855AC529D1809DF3B555D40F /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				5F844C09FCD307AF262BDB41 /* Pods-Runner.debug.xcconfig */,
+				2FD6D31AB2013B75CB16C72F /* Pods-Runner.release.xcconfig */,
+				BD1BC5FF85A673AC7738F6DF /* Pods-Runner.profile.xcconfig */,
+				5CCBBFA4C427193DF37044DA /* Pods-RunnerTests.debug.xcconfig */,
+				86F5450344B9BE2273976B6B /* Pods-RunnerTests.release.xcconfig */,
+				8B9DF8C58AFF7B81844064AC /* Pods-RunnerTests.profile.xcconfig */,
+			);
+			name = Pods;
+			path = Pods;
+			sourceTree = "<group>";
+		};
 		D73912EC22F37F3D000D13A0 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				C20AF64D20A0D998576B7391 /* Pods_Runner.framework */,
+				8AA200BBA16E846EF02EA220 /* Pods_RunnerTests.framework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@ -186,6 +215,7 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 331C80DE294CF71000263BE5 /* Build configuration list for PBXNativeTarget "RunnerTests" */;
 			buildPhases = (
+				289049F07BF5608C0DEEA906 /* [CP] Check Pods Manifest.lock */,
 				331C80D1294CF70F00263BE5 /* Sources */,
 				331C80D2294CF70F00263BE5 /* Frameworks */,
 				331C80D3294CF70F00263BE5 /* Resources */,
@ -204,11 +234,13 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */;
 			buildPhases = (
+				772657A59DCC9D8E14DB7114 /* [CP] Check Pods Manifest.lock */,
 				33CC10E92044A3C60003C045 /* Sources */,
 				33CC10EA2044A3C60003C045 /* Frameworks */,
 				33CC10EB2044A3C60003C045 /* Resources */,
 				33CC110E2044A8840003C045 /* Bundle Framework */,
 				3399D490228B24CF009A79C7 /* ShellScript */,
+				C8ACC0A85F9FDC2B7315ABC5 /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@ -291,6 +323,28 @@
 /* End PBXResourcesBuildPhase section */

 /* Begin PBXShellScriptBuildPhase section */
+		289049F07BF5608C0DEEA906 /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-RunnerTests-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
+		};
 		3399D490228B24CF009A79C7 /* ShellScript */ = {
 			isa = PBXShellScriptBuildPhase;
 			alwaysOutOfDate = 1;
@ -329,6 +383,45 @@
 			shellPath = /bin/sh;
 			shellScript = "\"$FLUTTER_ROOT\"/packages/flutter_tools/bin/macos_assemble.sh && touch Flutter/ephemeral/tripwire";
 		};
+		772657A59DCC9D8E14DB7114 /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
+		};
+		C8ACC0A85F9FDC2B7315ABC5 /* [CP] Embed Pods Frameworks */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks-${CONFIGURATION}-input-files.xcfilelist",
+			);
+			name = "[CP] Embed Pods Frameworks";
+			outputFileListPaths = (
+				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks-${CONFIGURATION}-output-files.xcfilelist",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
 /* End PBXShellScriptBuildPhase section */

 /* Begin PBXSourcesBuildPhase section */
@ -380,6 +473,7 @@
 /* Begin XCBuildConfiguration section */
 		331C80DB294CF71000263BE5 /* Debug */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = 5CCBBFA4C427193DF37044DA /* Pods-RunnerTests.debug.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CURRENT_PROJECT_VERSION = 1;
@ -394,6 +488,7 @@
 		};
 		331C80DC294CF71000263BE5 /* Release */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = 86F5450344B9BE2273976B6B /* Pods-RunnerTests.release.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CURRENT_PROJECT_VERSION = 1;
@ -408,6 +503,7 @@
 		};
 		331C80DD294CF71000263BE5 /* Profile */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = 8B9DF8C58AFF7B81844064AC /* Pods-RunnerTests.profile.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CURRENT_PROJECT_VERSION = 1;
--- a/apps/app/macos/Runner.xcworkspace/contents.xcworkspacedata
+++ b/apps/app/macos/Runner.xcworkspace/contents.xcworkspacedata
@ -4,4 +4,7 @@
   <FileRef
      location = "group:Runner.xcodeproj">
   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
 </Workspace>
--- a/apps/app/pubspec.lock
+++ b/apps/app/pubspec.lock
@ -185,6 +185,22 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "0.7.11"
+  device_info_plus:
+    dependency: transitive
+    description:
+      name: device_info_plus
+      sha256: a7fd703482b391a87d60b6061d04dfdeab07826b96f9abd8f5ed98068acc0074
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.1.2"
+  device_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: device_info_plus_platform_interface
+      sha256: e1ea89119e34903dca74b883d0dd78eb762814f97fb6c76f35e9ff74d261a18f
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.3"
  drift:
    dependency: transitive
    description:
@ -504,6 +520,38 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "5.2.3"
+  nearby_connections:
+    dependency: transitive
+    description:
+      name: nearby_connections
+      sha256: "94d500bdb11f9a3db3b1cb2949ab438107e581f0142380efc17ecc8038e99369"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.3.0"
+  network_info_plus:
+    dependency: transitive
+    description:
+      name: network_info_plus
+      sha256: "5bd4b86e28fed5ed4e6ac7764133c031dfb7d3f46aa2a81b46f55038aa78ecc0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.3"
+  network_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: network_info_plus_platform_interface
+      sha256: "7e7496a8a9d8136859b8881affc613c4a21304afeb6c324bcefc4bd0aff6b94b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.2"
+  nm:
+    dependency: transitive
+    description:
+      name: nm
+      sha256: "2c9aae4127bdc8993206464fcc063611e0e36e72018696cd9631023a31b24254"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.0"
  objective_c:
    dependency: transitive
    description:
@ -647,13 +695,6 @@ packages:
      relative: true
    source: path
    version: "0.0.1"
-  playwith_game_quiz:
-    dependency: "direct main"
-    description:
-      path: "../../packages/games/quiz"
-      relative: true
-    source: path
-    version: "0.0.1"
  plugin_platform_interface:
    dependency: transitive
    description:
@ -987,6 +1028,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "3.23.4"
+  wifi_iot:
+    dependency: transitive
+    description:
+      name: wifi_iot
+      sha256: "0861aed0c0afd6031b4337811d31cdd181c594a8a2c73e94826ea21d2cb4707b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.19+2"
  win32:
    dependency: transitive
    description:
@ -995,6 +1044,14 @@ packages:
      url: "https://pub.dev"
    source: hosted
    version: "5.15.0"
+  win32_registry:
+    dependency: transitive
+    description:
+      name: win32_registry
+      sha256: "21ec76dfc731550fd3e2ce7a33a9ea90b828fdf19a5c3bcf556fa992cfa99852"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.5"
  xdg_directories:
    dependency: transitive
    description:
--- a/apps/app/pubspec.yaml
+++ b/apps/app/pubspec.yaml
@ -33,8 +33,6 @@ dependencies:
  # 로컬 패키지 추가
  playwith_core:
    path: ../../packages/core
-  playwith_game_quiz:
-    path: ../../packages/games/quiz
  permission_handler: ^11.0.0
  qr_flutter: ^4.1.0
  mobile_scanner: ^5.1.0
--- a/packages/core/lib/database/ephemeral_database.dart
+++ b/packages/core/lib/database/ephemeral_database.dart
@ -4,44 +4,61 @@ import 'package:drift/native.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:path/path.dart' as p;

-part 'ephemeral_database.g.dart'; // (나중에 생성될 파일)
+part 'ephemeral_database.g.dart';

-// 테이블 정의: 미디어 메타데이터
+// 기존 MediaItems 테이블
 class MediaItems extends Table {
-  TextColumn get id => text()(); // UUID
+  TextColumn get id => text()();
  TextColumn get senderId => text()();
  TextColumn get senderName => text()();
-  TextColumn get type => text()(); // 'IMAGE', 'VIDEO', 'AUDIO'
-  TextColumn get filePath => text()(); // 로컬 저장 경로
+  TextColumn get type => text()();
+  TextColumn get filePath => text()();
  DateTimeColumn get createdAt => dateTime().withDefault(currentDateAndTime)();
  
  @override
  Set<Column> get primaryKey => {id};
 }

-@DriftDatabase(tables: [MediaItems])
+// [추가] 패킷 로그 테이블 (재전송용)
+class PacketLogs extends Table {
+  IntColumn get seq => integer()(); // 순번 (Primary Key)
+  TextColumn get payload => text()(); // JSON 데이터
+  DateTimeColumn get createdAt => dateTime().withDefault(currentDateAndTime)();
+
+  @override
+  Set<Column> get primaryKey => {seq};
+}
+
+@DriftDatabase(tables: [MediaItems, PacketLogs]) // [수정] PacketLogs 추가
 class EphemeralDatabase extends _$EphemeralDatabase {
-  // 싱글톤이 아닌 인스턴스로 관리 (방 만들 때 생성, 나갈 때 close)
  EphemeralDatabase(QueryExecutor e) : super(e);

  @override
-  int get schemaVersion => 1;
+  int get schemaVersion => 2; // [수정] 버전 업 (기존 앱 삭제 후 설치 권장)

-  // 팩토리: 파일 기반 DB 생성
  static Future<EphemeralDatabase> create(String roomName) async {
    final dbFolder = await getApplicationDocumentsDirectory();
-    // 방 이름이나 ID로 파일명 구분
    final file = File(p.join(dbFolder.path, 'room_$roomName.sqlite'));
    return EphemeralDatabase(NativeDatabase(file));
  }

-  // CRUD 쿼리
  Future<List<MediaItem>> getAllMedia() => select(mediaItems).get();
  Future<int> insertMedia(MediaItemsCompanion entry) => into(mediaItems).insert(entry);
  
-  // [핵심] 방 폭파 시 데이터 삭제
+  // [추가] 패킷 저장
+  Future<int> logPacket(int seq, String json) {
+    return into(packetLogs).insert(PacketLogsCompanion(
+      seq: Value(seq),
+      payload: Value(json),
+    ));
+  }
+
+  // [추가] 특정 범위의 패킷 가져오기 (재전송 요청 시 사용)
+  Future<List<PacketLog>> getPacketsInRange(int fromSeq, int toSeq) {
+    return (select(packetLogs)..where((tbl) => tbl.seq.isBetweenValues(fromSeq, toSeq))).get();
+  }
+
  Future<void> wipeData() async {
-    await close(); // DB 연결 종료
-    // 실제 파일 삭제 로직은 Manager에서 수행 (DB 파일 자체를 날림)
+    await close();
  }
 }
--- a/packages/core/lib/database/ephemeral_database.g.dart
+++ b/packages/core/lib/database/ephemeral_database.g.dart
@ -351,15 +351,229 @@ class MediaItemsCompanion extends UpdateCompanion<MediaItem> {
  }
 }

+class $PacketLogsTable extends PacketLogs
+    with TableInfo<$PacketLogsTable, PacketLog> {
+  @override
+  final GeneratedDatabase attachedDatabase;
+  final String? _alias;
+  $PacketLogsTable(this.attachedDatabase, [this._alias]);
+  static const VerificationMeta _seqMeta = const VerificationMeta('seq');
+  @override
+  late final GeneratedColumn<int> seq = GeneratedColumn<int>(
+      'seq', aliasedName, false,
+      type: DriftSqlType.int, requiredDuringInsert: false);
+  static const VerificationMeta _payloadMeta =
+      const VerificationMeta('payload');
+  @override
+  late final GeneratedColumn<String> payload = GeneratedColumn<String>(
+      'payload', aliasedName, false,
+      type: DriftSqlType.string, requiredDuringInsert: true);
+  static const VerificationMeta _createdAtMeta =
+      const VerificationMeta('createdAt');
+  @override
+  late final GeneratedColumn<DateTime> createdAt = GeneratedColumn<DateTime>(
+      'created_at', aliasedName, false,
+      type: DriftSqlType.dateTime,
+      requiredDuringInsert: false,
+      defaultValue: currentDateAndTime);
+  @override
+  List<GeneratedColumn> get $columns => [seq, payload, createdAt];
+  @override
+  String get aliasedName => _alias ?? actualTableName;
+  @override
+  String get actualTableName => $name;
+  static const String $name = 'packet_logs';
+  @override
+  VerificationContext validateIntegrity(Insertable<PacketLog> instance,
+      {bool isInserting = false}) {
+    final context = VerificationContext();
+    final data = instance.toColumns(true);
+    if (data.containsKey('seq')) {
+      context.handle(
+          _seqMeta, seq.isAcceptableOrUnknown(data['seq']!, _seqMeta));
+    }
+    if (data.containsKey('payload')) {
+      context.handle(_payloadMeta,
+          payload.isAcceptableOrUnknown(data['payload']!, _payloadMeta));
+    } else if (isInserting) {
+      context.missing(_payloadMeta);
+    }
+    if (data.containsKey('created_at')) {
+      context.handle(_createdAtMeta,
+          createdAt.isAcceptableOrUnknown(data['created_at']!, _createdAtMeta));
+    }
+    return context;
+  }
+
+  @override
+  Set<GeneratedColumn> get $primaryKey => {seq};
+  @override
+  PacketLog map(Map<String, dynamic> data, {String? tablePrefix}) {
+    final effectivePrefix = tablePrefix != null ? '$tablePrefix.' : '';
+    return PacketLog(
+      seq: attachedDatabase.typeMapping
+          .read(DriftSqlType.int, data['${effectivePrefix}seq'])!,
+      payload: attachedDatabase.typeMapping
+          .read(DriftSqlType.string, data['${effectivePrefix}payload'])!,
+      createdAt: attachedDatabase.typeMapping
+          .read(DriftSqlType.dateTime, data['${effectivePrefix}created_at'])!,
+    );
+  }
+
+  @override
+  $PacketLogsTable createAlias(String alias) {
+    return $PacketLogsTable(attachedDatabase, alias);
+  }
+}
+
+class PacketLog extends DataClass implements Insertable<PacketLog> {
+  final int seq;
+  final String payload;
+  final DateTime createdAt;
+  const PacketLog(
+      {required this.seq, required this.payload, required this.createdAt});
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    map['seq'] = Variable<int>(seq);
+    map['payload'] = Variable<String>(payload);
+    map['created_at'] = Variable<DateTime>(createdAt);
+    return map;
+  }
+
+  PacketLogsCompanion toCompanion(bool nullToAbsent) {
+    return PacketLogsCompanion(
+      seq: Value(seq),
+      payload: Value(payload),
+      createdAt: Value(createdAt),
+    );
+  }
+
+  factory PacketLog.fromJson(Map<String, dynamic> json,
+      {ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return PacketLog(
+      seq: serializer.fromJson<int>(json['seq']),
+      payload: serializer.fromJson<String>(json['payload']),
+      createdAt: serializer.fromJson<DateTime>(json['createdAt']),
+    );
+  }
+  @override
+  Map<String, dynamic> toJson({ValueSerializer? serializer}) {
+    serializer ??= driftRuntimeOptions.defaultSerializer;
+    return <String, dynamic>{
+      'seq': serializer.toJson<int>(seq),
+      'payload': serializer.toJson<String>(payload),
+      'createdAt': serializer.toJson<DateTime>(createdAt),
+    };
+  }
+
+  PacketLog copyWith({int? seq, String? payload, DateTime? createdAt}) =>
+      PacketLog(
+        seq: seq ?? this.seq,
+        payload: payload ?? this.payload,
+        createdAt: createdAt ?? this.createdAt,
+      );
+  PacketLog copyWithCompanion(PacketLogsCompanion data) {
+    return PacketLog(
+      seq: data.seq.present ? data.seq.value : this.seq,
+      payload: data.payload.present ? data.payload.value : this.payload,
+      createdAt: data.createdAt.present ? data.createdAt.value : this.createdAt,
+    );
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('PacketLog(')
+          ..write('seq: $seq, ')
+          ..write('payload: $payload, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+
+  @override
+  int get hashCode => Object.hash(seq, payload, createdAt);
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      (other is PacketLog &&
+          other.seq == this.seq &&
+          other.payload == this.payload &&
+          other.createdAt == this.createdAt);
+}
+
+class PacketLogsCompanion extends UpdateCompanion<PacketLog> {
+  final Value<int> seq;
+  final Value<String> payload;
+  final Value<DateTime> createdAt;
+  const PacketLogsCompanion({
+    this.seq = const Value.absent(),
+    this.payload = const Value.absent(),
+    this.createdAt = const Value.absent(),
+  });
+  PacketLogsCompanion.insert({
+    this.seq = const Value.absent(),
+    required String payload,
+    this.createdAt = const Value.absent(),
+  }) : payload = Value(payload);
+  static Insertable<PacketLog> custom({
+    Expression<int>? seq,
+    Expression<String>? payload,
+    Expression<DateTime>? createdAt,
+  }) {
+    return RawValuesInsertable({
+      if (seq != null) 'seq': seq,
+      if (payload != null) 'payload': payload,
+      if (createdAt != null) 'created_at': createdAt,
+    });
+  }
+
+  PacketLogsCompanion copyWith(
+      {Value<int>? seq, Value<String>? payload, Value<DateTime>? createdAt}) {
+    return PacketLogsCompanion(
+      seq: seq ?? this.seq,
+      payload: payload ?? this.payload,
+      createdAt: createdAt ?? this.createdAt,
+    );
+  }
+
+  @override
+  Map<String, Expression> toColumns(bool nullToAbsent) {
+    final map = <String, Expression>{};
+    if (seq.present) {
+      map['seq'] = Variable<int>(seq.value);
+    }
+    if (payload.present) {
+      map['payload'] = Variable<String>(payload.value);
+    }
+    if (createdAt.present) {
+      map['created_at'] = Variable<DateTime>(createdAt.value);
+    }
+    return map;
+  }
+
+  @override
+  String toString() {
+    return (StringBuffer('PacketLogsCompanion(')
+          ..write('seq: $seq, ')
+          ..write('payload: $payload, ')
+          ..write('createdAt: $createdAt')
+          ..write(')'))
+        .toString();
+  }
+}
+
 abstract class _$EphemeralDatabase extends GeneratedDatabase {
  _$EphemeralDatabase(QueryExecutor e) : super(e);
  $EphemeralDatabaseManager get managers => $EphemeralDatabaseManager(this);
  late final $MediaItemsTable mediaItems = $MediaItemsTable(this);
+  late final $PacketLogsTable packetLogs = $PacketLogsTable(this);
  @override
  Iterable<TableInfo<Table, Object?>> get allTables =>
      allSchemaEntities.whereType<TableInfo<Table, Object?>>();
  @override
-  List<DatabaseSchemaEntity> get allSchemaEntities => [mediaItems];
+  List<DatabaseSchemaEntity> get allSchemaEntities => [mediaItems, packetLogs];
 }

 typedef $$MediaItemsTableCreateCompanionBuilder = MediaItemsCompanion Function({
@ -548,10 +762,147 @@ typedef $$MediaItemsTableProcessedTableManager = ProcessedTableManager<
    ),
    MediaItem,
    PrefetchHooks Function()>;
+typedef $$PacketLogsTableCreateCompanionBuilder = PacketLogsCompanion Function({
+  Value<int> seq,
+  required String payload,
+  Value<DateTime> createdAt,
+});
+typedef $$PacketLogsTableUpdateCompanionBuilder = PacketLogsCompanion Function({
+  Value<int> seq,
+  Value<String> payload,
+  Value<DateTime> createdAt,
+});
+
+class $$PacketLogsTableFilterComposer
+    extends Composer<_$EphemeralDatabase, $PacketLogsTable> {
+  $$PacketLogsTableFilterComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  ColumnFilters<int> get seq => $composableBuilder(
+      column: $table.seq, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<String> get payload => $composableBuilder(
+      column: $table.payload, builder: (column) => ColumnFilters(column));
+
+  ColumnFilters<DateTime> get createdAt => $composableBuilder(
+      column: $table.createdAt, builder: (column) => ColumnFilters(column));
+}
+
+class $$PacketLogsTableOrderingComposer
+    extends Composer<_$EphemeralDatabase, $PacketLogsTable> {
+  $$PacketLogsTableOrderingComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  ColumnOrderings<int> get seq => $composableBuilder(
+      column: $table.seq, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<String> get payload => $composableBuilder(
+      column: $table.payload, builder: (column) => ColumnOrderings(column));
+
+  ColumnOrderings<DateTime> get createdAt => $composableBuilder(
+      column: $table.createdAt, builder: (column) => ColumnOrderings(column));
+}
+
+class $$PacketLogsTableAnnotationComposer
+    extends Composer<_$EphemeralDatabase, $PacketLogsTable> {
+  $$PacketLogsTableAnnotationComposer({
+    required super.$db,
+    required super.$table,
+    super.joinBuilder,
+    super.$addJoinBuilderToRootComposer,
+    super.$removeJoinBuilderFromRootComposer,
+  });
+  GeneratedColumn<int> get seq =>
+      $composableBuilder(column: $table.seq, builder: (column) => column);
+
+  GeneratedColumn<String> get payload =>
+      $composableBuilder(column: $table.payload, builder: (column) => column);
+
+  GeneratedColumn<DateTime> get createdAt =>
+      $composableBuilder(column: $table.createdAt, builder: (column) => column);
+}
+
+class $$PacketLogsTableTableManager extends RootTableManager<
+    _$EphemeralDatabase,
+    $PacketLogsTable,
+    PacketLog,
+    $$PacketLogsTableFilterComposer,
+    $$PacketLogsTableOrderingComposer,
+    $$PacketLogsTableAnnotationComposer,
+    $$PacketLogsTableCreateCompanionBuilder,
+    $$PacketLogsTableUpdateCompanionBuilder,
+    (
+      PacketLog,
+      BaseReferences<_$EphemeralDatabase, $PacketLogsTable, PacketLog>
+    ),
+    PacketLog,
+    PrefetchHooks Function()> {
+  $$PacketLogsTableTableManager(_$EphemeralDatabase db, $PacketLogsTable table)
+      : super(TableManagerState(
+          db: db,
+          table: table,
+          createFilteringComposer: () =>
+              $$PacketLogsTableFilterComposer($db: db, $table: table),
+          createOrderingComposer: () =>
+              $$PacketLogsTableOrderingComposer($db: db, $table: table),
+          createComputedFieldComposer: () =>
+              $$PacketLogsTableAnnotationComposer($db: db, $table: table),
+          updateCompanionCallback: ({
+            Value<int> seq = const Value.absent(),
+            Value<String> payload = const Value.absent(),
+            Value<DateTime> createdAt = const Value.absent(),
+          }) =>
+              PacketLogsCompanion(
+            seq: seq,
+            payload: payload,
+            createdAt: createdAt,
+          ),
+          createCompanionCallback: ({
+            Value<int> seq = const Value.absent(),
+            required String payload,
+            Value<DateTime> createdAt = const Value.absent(),
+          }) =>
+              PacketLogsCompanion.insert(
+            seq: seq,
+            payload: payload,
+            createdAt: createdAt,
+          ),
+          withReferenceMapper: (p0) => p0
+              .map((e) => (e.readTable(table), BaseReferences(db, table, e)))
+              .toList(),
+          prefetchHooksCallback: null,
+        ));
+}
+
+typedef $$PacketLogsTableProcessedTableManager = ProcessedTableManager<
+    _$EphemeralDatabase,
+    $PacketLogsTable,
+    PacketLog,
+    $$PacketLogsTableFilterComposer,
+    $$PacketLogsTableOrderingComposer,
+    $$PacketLogsTableAnnotationComposer,
+    $$PacketLogsTableCreateCompanionBuilder,
+    $$PacketLogsTableUpdateCompanionBuilder,
+    (
+      PacketLog,
+      BaseReferences<_$EphemeralDatabase, $PacketLogsTable, PacketLog>
+    ),
+    PacketLog,
+    PrefetchHooks Function()>;

 class $EphemeralDatabaseManager {
  final _$EphemeralDatabase _db;
  $EphemeralDatabaseManager(this._db);
  $$MediaItemsTableTableManager get mediaItems =>
      $$MediaItemsTableTableManager(_db, _db.mediaItems);
+  $$PacketLogsTableTableManager get packetLogs =>
+      $$PacketLogsTableTableManager(_db, _db.packetLogs);
 }
--- a/packages/core/lib/game/arkanoid_game.dart
+++ b/packages/core/lib/game/arkanoid_game.dart
@ -0,0 +1,265 @@
+import 'dart:async';
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart'; // [필수] Ticker 사용을 위해 추가
+import 'package:playwith_core/playwith_core.dart';
+
+class ArkanoidGame extends BaseGame {
+  @override
+  String get id => "arkanoid";
+  @override
+  String get name => "벽돌 깨기";
+  @override
+  String get description => "공을 튕겨 점수를 올리세요!";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // UI에서 처리
+  }
+
+  @override
+  Widget buildHostView(BuildContext context) => ArkanoidScreen(isHost: true, gameInstance: this);
+  @override
+  Widget buildGuestView(BuildContext context) => ArkanoidScreen(isHost: false, gameInstance: this);
+}
+
+class ArkanoidScreen extends StatefulWidget {
+  final bool isHost;
+  final ArkanoidGame gameInstance;
+
+  const ArkanoidScreen({super.key, required this.isHost, required this.gameInstance});
+
+  @override
+  State<ArkanoidScreen> createState() => _ArkanoidScreenState();
+}
+
+class _ArkanoidScreenState extends State<ArkanoidScreen> with SingleTickerProviderStateMixin {
+  late Ticker _ticker; // [수정] 이제 에러가 사라질 것입니다.
+  
+  // 게임 상태
+  double paddleX = 0.0; // -1.0 ~ 1.0 (화면 비율)
+  double ballX = 0.0;
+  double ballY = 0.0;
+  double ballVelX = 0.01;
+  double ballVelY = -0.015;
+  
+  int score = 0;
+  int opponentScore = 0;
+  int lives = 3;
+  bool isPlaying = false;
+  bool isGameOver = false;
+
+  List<Brick> bricks = [];
+
+  @override
+  void initState() {
+    super.initState();
+    _resetLevel();
+    _ticker = createTicker(_gameLoop)..start();
+    NetworkManager().messageStream.listen(_handleMessage);
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+    if (payload['type'] == 'SCORE') {
+      setState(() {
+        opponentScore = payload['score'];
+      });
+    } else if (payload['type'] == 'GAME_OVER_OPPONENT') {
+       // 상대방 게임 오버 알림 (선택 사항)
+    }
+  }
+
+  void _resetLevel() {
+    // 벽돌 생성 (5줄)
+    bricks.clear();
+    for (int i = 0; i < 5; i++) {
+      for (int j = -4; j <= 4; j++) {
+        bricks.add(Brick(x: j * 0.22, y: -0.8 + (i * 0.1)));
+      }
+    }
+    _resetBall();
+  }
+
+  void _resetBall() {
+    ballX = 0;
+    ballY = 0.5;
+    ballVelX = (Random().nextBool() ? 0.01 : -0.01);
+    ballVelY = -0.015;
+    isPlaying = false;
+  }
+
+  void _gameLoop(Duration elapsed) {
+    if (!isPlaying || isGameOver) return;
+
+    setState(() {
+      ballX += ballVelX;
+      ballY += ballVelY;
+
+      // 벽 충돌
+      if (ballX <= -1 || ballX >= 1) ballVelX = -ballVelX;
+      if (ballY <= -1) ballVelY = -ballVelY; // 천장
+
+      // 바닥 충돌 (라이프 감소)
+      if (ballY >= 1) {
+        lives--;
+        if (lives <= 0) {
+          isGameOver = true;
+          NetworkManager().sendMessage({'type': 'GAME_OVER_OPPONENT', 'score': score});
+          _showGameOverDialog();
+        } else {
+          _resetBall();
+        }
+      }
+
+      // 패들 충돌 (간략화: Y좌표가 0.9 근처이고 X범위 내일 때)
+      if (ballY >= 0.85 && ballY <= 0.95 && ballVelY > 0) {
+        if (ballX >= paddleX - 0.25 && ballX <= paddleX + 0.25) {
+          ballVelY = -ballVelY;
+          // 패들 맞은 위치에 따라 X속도 변화 (스핀 효과)
+          ballVelX += (ballX - paddleX) * 0.05;
+          SoundManager().playSfx(SoundKey.click);
+        }
+      }
+
+      // 벽돌 충돌
+      for (int i = 0; i < bricks.length; i++) {
+        if (!bricks[i].isBroken &&
+            ballX >= bricks[i].x - 0.1 && ballX <= bricks[i].x + 0.1 &&
+            ballY >= bricks[i].y - 0.05 && ballY <= bricks[i].y + 0.05) {
+          
+          bricks[i].isBroken = true;
+          ballVelY = -ballVelY;
+          score += 10;
+          
+          // 50점 단위로 점수 전송
+          if (score % 50 == 0) {
+            NetworkManager().sendMessage({'type': 'SCORE', 'score': score});
+          }
+          break; // 한 프레임에 하나만 깸
+        }
+      }
+
+      // 모든 벽돌 깸 -> 레벨 초기화 (무한 모드)
+      if (bricks.every((b) => b.isBroken)) {
+        _resetLevel();
+        ballVelY *= 1.1; // 속도 증가
+      }
+    });
+  }
+
+  void _onPanUpdate(DragUpdateDetails details) {
+    setState(() {
+      // 화면 너비를 -1 ~ 1 좌표계로 변환
+      paddleX += details.delta.dx / (MediaQuery.of(context).size.width / 2);
+      paddleX = paddleX.clamp(-0.8, 0.8);
+      if (!isPlaying && !isGameOver) isPlaying = true;
+    });
+  }
+
+  void _showGameOverDialog() {
+    String result = score > opponentScore ? "이겼습니다! (상대: $opponentScore)" : "졌습니다... (상대: $opponentScore)";
+    if (score == opponentScore) result = "무승부!";
+
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("게임 오버"),
+        content: Text("내 점수: $score\n$result"),
+        actions: [
+          TextButton(
+            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
+            child: const Text("나가기"),
+          )
+        ],
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _ticker.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          children: [
+            Text("나: $score"),
+            Text("❤️ $lives"),
+            Text("상대: $opponentScore"),
+          ],
+        ),
+      ),
+      backgroundColor: Colors.black,
+      body: GestureDetector(
+        onPanUpdate: _onPanUpdate,
+        child: Container(
+          color: Colors.transparent,
+          width: double.infinity,
+          height: double.infinity,
+          child: CustomPaint(
+            painter: ArkanoidPainter(paddleX: paddleX, ballX: ballX, ballY: ballY, bricks: bricks),
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class Brick {
+  double x, y;
+  bool isBroken = false;
+  Brick({required this.x, required this.y});
+}
+
+class ArkanoidPainter extends CustomPainter {
+  final double paddleX, ballX, ballY;
+  final List<Brick> bricks;
+
+  ArkanoidPainter({required this.paddleX, required this.ballX, required this.ballY, required this.bricks});
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final paint = Paint()..color = Colors.white;
+    final center = size.center(Offset.zero);
+
+    // 좌표 변환 함수 (-1~1 -> 화면 좌표)
+    double toScreenX(double v) => center.dx + v * (size.width / 2);
+    double toScreenY(double v) => center.dy + v * (size.height / 2);
+
+    // 패들 그리기
+    paint.color = Colors.blueAccent;
+    Rect paddleRect = Rect.fromCenter(
+      center: Offset(toScreenX(paddleX), toScreenY(0.9)),
+      width: size.width * 0.25, // 패들 너비
+      height: 20,
+    );
+    canvas.drawRRect(RRect.fromRectAndRadius(paddleRect, const Radius.circular(10)), paint);
+
+    // 공 그리기
+    paint.color = Colors.yellowAccent;
+    canvas.drawCircle(Offset(toScreenX(ballX), toScreenY(ballY)), 10, paint);
+
+    // 벽돌 그리기
+    paint.color = Colors.redAccent;
+    for (var b in bricks) {
+      if (!b.isBroken) {
+        Rect brickRect = Rect.fromCenter(
+          center: Offset(toScreenX(b.x), toScreenY(b.y)),
+          width: size.width * 0.2 - 5,
+          height: 20,
+        );
+        canvas.drawRRect(RRect.fromRectAndRadius(brickRect, const Radius.circular(4)), paint);
+      }
+    }
+  }
+
+  @override
+  bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
+}
--- a/packages/core/lib/game/iam_ground_game.dart
+++ b/packages/core/lib/game/iam_ground_game.dart
@ -0,0 +1,578 @@
+import 'dart:async';
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:playwith_core/playwith_core.dart';
+
+class IAmGroundGame extends BaseGame {
+  @override
+  String get id => "iam_ground";
+  @override
+  String get name => "아이엠그라운드";
+  @override
+  String get description => "8박자 리듬 체크 후 시작!\n정확한 박자에 입력하세요.";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // UI에서 처리
+  }
+
+  @override
+  Widget buildHostView(BuildContext context) => IAmGroundScreen(isHost: true, gameInstance: this);
+  @override
+  Widget buildGuestView(BuildContext context) => IAmGroundScreen(isHost: false, gameInstance: this);
+}
+
+class IAmGroundScreen extends StatefulWidget {
+  final bool isHost;
+  final IAmGroundGame gameInstance;
+
+  const IAmGroundScreen({super.key, required this.isHost, required this.gameInstance});
+
+  @override
+  State<IAmGroundScreen> createState() => _IAmGroundScreenState();
+}
+
+class _IAmGroundScreenState extends State<IAmGroundScreen> with SingleTickerProviderStateMixin {
+  late Ticker _ticker;
+  
+  // --- 리듬 설정 ---
+  double bpm = 60.0; // [수정] 초기 속도 90 -> 60 (1초에 1박자)
+  double _beatInterval = 0.0; 
+  double _currentTime = 0.0; 
+  int _currentBeat = 0;
+  
+  // --- 인트로(리듬체크) 관련 ---
+  bool _isIntro = false;
+  int _introBeatCount = 0;
+  Duration _gameStartTime = Duration.zero; 
+
+  // --- 게임 상태 ---
+  String attackerId = ""; 
+  String targetId = ""; 
+  int attackCount = 0; 
+  
+  List<UserInfo> players = [];
+  Set<String> deadPlayers = {};
+  
+  bool isMyTurn = false; 
+  bool isTargeted = false; 
+  List<bool> _inputChecklist = [false, false, false, false];
+  
+  String centerMessage = "게임 대기 중...";
+  Color beatColor = Colors.grey;
+
+  // 솔로 모드 AI
+  bool isSolo = false;
+  final UserInfo aiPlayer = const UserInfo(id: 'ai_bot', nickname: '🤖 AI', colorValue: 0xFF607D8B);
+  bool _aiActionReserved = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _initPlayers();
+    _updateBpm(60.0); // [수정] 초기값 60
+    
+    _ticker = createTicker(_onTick);
+    NetworkManager().messageStream.listen(_handleMessage);
+
+    if (widget.isHost) {
+      Future.delayed(const Duration(seconds: 1), () {
+        _startGame(players.first.id);
+      });
+    }
+  }
+
+  void _initPlayers() {
+    players = [NetworkManager().me];
+    if (NetworkManager().guestList.isEmpty) {
+      isSolo = true;
+      players.add(aiPlayer);
+    } else {
+      players.addAll(NetworkManager().guestList);
+    }
+  }
+
+  void _updateBpm(double newBpm) {
+    bpm = newBpm;
+    _beatInterval = (60.0 / bpm) * 1000; // ms 단위
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+
+    String type = payload['type'];
+
+    if (type == 'START_GAME') {
+      setState(() {
+        attackerId = payload['firstAttacker'];
+        _updateBpm(60.0); // [수정] 게임 시작 시 60 BPM으로 초기화
+        deadPlayers.clear();
+        
+        // 인트로 모드 진입
+        _isIntro = true;
+        _introBeatCount = 0;
+        centerMessage = "리듬 체크!";
+        
+        _startMetronome();
+      });
+    } 
+    else if (type == 'ATTACK_CMD') {
+      setState(() {
+        attackerId = ""; 
+        targetId = payload['targetId'];
+        attackCount = payload['count'];
+        centerMessage = "${_getName(targetId)}! $attackCount개!";
+        
+        // 공격 성공할 때마다 BPM 조금씩 증가 (난이도 상승)
+        if (bpm < 160) _updateBpm(bpm + 2.0);
+      });
+    }
+    else if (type == 'DEFEND_SUCCESS') {
+      setState(() {
+        attackerId = payload['newAttacker'];
+        targetId = "";
+        attackCount = 0;
+        centerMessage = "${_getName(attackerId)} 공격 차례!";
+      });
+    }
+    else if (type == 'DIE') {
+      final deadId = payload['deadId'];
+      setState(() {
+        deadPlayers.add(deadId);
+        if (deadId == NetworkManager().me.id) {
+          if (isSolo) _showSoloRetryDialog();
+          else _showGameOverDialog("탈락했습니다... 😵");
+        } else if (isSolo && deadId == 'ai_bot') {
+           _showGameOverDialog("AI를 이겼습니다! 승리! 🎉");
+        }
+        
+        if (widget.isHost && (deadId == attackerId || deadId == targetId)) {
+           _passTurnToNextAlive(deadId);
+        }
+      });
+    }
+  }
+
+  String _getName(String id) {
+    return players.firstWhere((u) => u.id == id, orElse: () => players.first).nickname;
+  }
+
+  // ---------------------------------------------------------------------------
+  // 리듬 엔진 (Ticker)
+  // ---------------------------------------------------------------------------
+  void _startMetronome() {
+    if (!_ticker.isActive) _ticker.start();
+    _gameStartTime = Duration.zero; 
+    _currentTime = 0;
+    _currentBeat = 0;
+  }
+
+  void _onTick(Duration elapsed) {
+    // [인트로 모드]
+    if (_isIntro) {
+      _handleIntroTick(elapsed);
+      return;
+    }
+
+    // [게임 모드]
+    Duration gameElapsed = elapsed - _gameStartTime;
+    
+    double measureDuration = _beatInterval * 4;
+    double globalTime = gameElapsed.inMilliseconds.toDouble();
+    double localTime = globalTime % measureDuration; 
+    
+    int newBeat = (localTime / _beatInterval).floor() + 1; // 1~4
+    
+    if (newBeat != _currentBeat) {
+      _onBeatChanged(newBeat);
+      _currentBeat = newBeat;
+    }
+
+    _checkMiss(localTime);
+    
+    setState(() {
+      _currentTime = localTime;
+      double beatProgress = (localTime % _beatInterval) / _beatInterval;
+      beatColor = Color.lerp(Colors.cyanAccent, Colors.grey[900], beatProgress)!;
+    });
+  }
+
+  void _handleIntroTick(Duration elapsed) {
+    double totalTime = elapsed.inMilliseconds.toDouble();
+    int introBeat = (totalTime / _beatInterval).floor() + 1;
+
+    if (introBeat > _introBeatCount) {
+      setState(() {
+        _introBeatCount = introBeat;
+        
+        // 4-3-2-1 카운트다운
+        int displayNum = 5 - ((_introBeatCount - 1) % 4 + 1);
+        
+        if (_introBeatCount <= 4) {
+          centerMessage = "리듬 체크: $displayNum";
+          beatColor = Colors.yellow;
+        } else {
+          centerMessage = "준비: $displayNum";
+          beatColor = Colors.orange;
+        }
+
+        SoundManager().playSfx(SoundKey.click); 
+      });
+
+      if (_introBeatCount >= 8) {
+        setState(() {
+          _isIntro = false;
+          _gameStartTime = elapsed; 
+          centerMessage = "START!";
+          _currentBeat = 0; 
+          
+          _resetMeasureState();
+          if (isSolo) _scheduleAiAction();
+        });
+      }
+    }
+  }
+
+  void _onBeatChanged(int beat) {
+    if (beat == 1) {
+      _resetMeasureState();
+      if (isSolo) _scheduleAiAction();
+    }
+    if (beat == 1) SoundManager().playSfx(SoundKey.click); 
+  }
+
+  void _resetMeasureState() {
+    _inputChecklist = [false, false, false, false];
+    _aiActionReserved = false;
+    
+    isMyTurn = (attackerId == NetworkManager().me.id);
+    isTargeted = (targetId == NetworkManager().me.id);
+  }
+
+  // ---------------------------------------------------------------------------
+  // 입력 판정
+  // ---------------------------------------------------------------------------
+  void _handleInput(String type, dynamic value) {
+    if (deadPlayers.contains(NetworkManager().me.id)) return;
+    if (_isIntro) return; 
+
+    double closestDist = double.infinity;
+    int closestBeatIndex = -1; 
+    
+    for(int i=0; i<4; i++) {
+      double dist = (_currentTime - (i * _beatInterval)).abs();
+      if (dist < closestDist) {
+        closestDist = dist;
+        closestBeatIndex = i;
+      }
+    }
+    
+    // 판정 범위: 0.2초 (200ms)로 조금 더 여유 있게 조정
+    double greatWindow = 200.0; 
+    
+    if (closestDist > greatWindow) {
+      _die("박자 놓침! (Bad Timing)");
+      return;
+    }
+    
+    int hitBeat = closestBeatIndex + 1;
+    if (_inputChecklist[closestBeatIndex]) return;
+    _inputChecklist[closestBeatIndex] = true;
+
+    bool isCorrect = false;
+
+    if (isMyTurn) {
+      // 공격자: 3박자(이름), 4박자(숫자)
+      if (hitBeat == 3 && type == 'NAME' && value != NetworkManager().me.id) {
+        isCorrect = true;
+        targetId = value; 
+      } else if (hitBeat == 4 && type == 'NUM') {
+        isCorrect = true;
+        if (targetId.isNotEmpty) {
+          _sendAttack(targetId, value);
+        } else {
+          _die("공격 대상 미지정!");
+        }
+      }
+    } else if (isTargeted) {
+      // 방어자
+      bool shouldHit = false;
+      if (attackCount == 1 && hitBeat == 4) shouldHit = true;
+      if (attackCount == 2 && (hitBeat == 3 || hitBeat == 4)) shouldHit = true;
+      if (attackCount == 3 && (hitBeat >= 2)) shouldHit = true;
+      if (attackCount == 4 && (hitBeat >= 1)) shouldHit = true;
+
+      if (shouldHit && type == 'NAME' && value == NetworkManager().me.id) {
+        isCorrect = true;
+        if (hitBeat == 4) {
+          _sendDefendSuccess();
+        }
+      }
+    }
+
+    if (!isCorrect) {
+      _die("틀린 입력!"); 
+    }
+  }
+
+  void _checkMiss(double localTime) {
+    double checkPoint = 210.0; // 판정 윈도우 종료 직후
+    for(int i=0; i<4; i++) {
+      double beatTime = i * _beatInterval;
+      if (localTime > beatTime + checkPoint && !_inputChecklist[i]) {
+        int beatNum = i + 1;
+        bool required = false;
+
+        if (isMyTurn) {
+          if (beatNum == 3 || beatNum == 4) required = true;
+        } else if (isTargeted) {
+          if (attackCount == 1 && beatNum == 4) required = true;
+          if (attackCount == 2 && (beatNum == 3 || beatNum == 4)) required = true;
+          if (attackCount == 3 && beatNum >= 2) required = true;
+          if (attackCount == 4 && beatNum >= 1) required = true;
+        }
+
+        if (required) {
+          _die("입력 시간 초과!");
+        }
+        _inputChecklist[i] = true;
+      }
+    }
+  }
+
+  void _die(String reason) {
+    if (deadPlayers.contains(NetworkManager().me.id)) return;
+    _broadcast({'type': 'DIE', 'deadId': NetworkManager().me.id});
+    ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(reason), backgroundColor: Colors.red, duration: const Duration(milliseconds: 500)));
+    SoundManager().playSfx(SoundKey.wrong);
+  }
+
+  // ---------------------------------------------------------------------------
+  // 통신 및 AI
+  // ---------------------------------------------------------------------------
+  void _startGame(String startId) {
+    final payload = {'type': 'START_GAME', 'firstAttacker': startId};
+    _broadcast(payload);
+  }
+
+  void _sendAttack(String target, int count) {
+    final payload = {'type': 'ATTACK_CMD', 'targetId': target, 'count': count};
+    _broadcast(payload);
+    SoundManager().playSfx(SoundKey.correct);
+  }
+
+  void _sendDefendSuccess() {
+    final payload = {'type': 'DEFEND_SUCCESS', 'newAttacker': NetworkManager().me.id};
+    _broadcast(payload);
+  }
+
+  void _broadcast(Map<String, dynamic> payload) {
+    if (isSolo) {
+      _handleMessage(payload);
+    } else {
+      NetworkManager().sendMessage(payload);
+      if (widget.isHost) _handleMessage(payload);
+    }
+  }
+
+  void _passTurnToNextAlive(String deadId) {
+    int idx = players.indexWhere((u) => u.id == deadId);
+    for (int i = 1; i < players.length; i++) {
+      int nextIdx = (idx + i) % players.length;
+      if (!deadPlayers.contains(players[nextIdx].id)) {
+        _broadcast({'type': 'DEFEND_SUCCESS', 'newAttacker': players[nextIdx].id});
+        return;
+      }
+    }
+  }
+
+  void _scheduleAiAction() {
+    if (_aiActionReserved) return;
+    _aiActionReserved = true;
+
+    if (attackerId == 'ai_bot') {
+      Future.delayed(Duration(milliseconds: (_beatInterval * 3.5).toInt()), () {
+        if (!mounted) return;
+        _broadcast({'type': 'ATTACK_CMD', 'targetId': NetworkManager().me.id, 'count': Random().nextInt(4) + 1});
+      });
+    }
+    else if (targetId == 'ai_bot') {
+       Future.delayed(Duration(milliseconds: (_beatInterval * 3.8).toInt()), () {
+         if (!mounted) return;
+         _broadcast({'type': 'DEFEND_SUCCESS', 'newAttacker': 'ai_bot'});
+       });
+    }
+  }
+
+  // ---------------------------------------------------------------------------
+  // UI
+  // ---------------------------------------------------------------------------
+  @override
+  void dispose() {
+    _ticker.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: Colors.black,
+      appBar: AppBar(
+        title: Text("아이엠그라운드 BPM:${bpm.toInt()}"),
+        backgroundColor: Colors.grey[900],
+      ),
+      body: Column(
+        children: [
+          // 1. 리듬 바
+          Container(
+            height: 15,
+            width: double.infinity,
+            color: Colors.grey[800],
+            child: Stack(
+              children: [
+                FractionallySizedBox(
+                  alignment: Alignment.centerLeft,
+                  widthFactor: (_currentTime % _beatInterval) / _beatInterval,
+                  child: Container(color: beatColor),
+                ),
+                Row(
+                  children: List.generate(4, (index) => Expanded(
+                    child: Container(
+                      decoration: BoxDecoration(
+                        border: Border(right: BorderSide(color: Colors.black, width: 2))
+                      ),
+                    ),
+                  )),
+                )
+              ],
+            ),
+          ),
+          
+          // 2. 중앙 정보
+          Expanded(
+            flex: 3,
+            child: Center(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Text(
+                    _isIntro ? "준비!" : "$_currentBeat", 
+                    style: TextStyle(fontSize: 60, fontWeight: FontWeight.bold, color: beatColor)
+                  ),
+                  const SizedBox(height: 20),
+                  Text(centerMessage, style: const TextStyle(color: Colors.white, fontSize: 24, fontWeight: FontWeight.bold)),
+                ],
+              ),
+            ),
+          ),
+
+          // 3. 숫자 패드
+          Container(
+            height: 80,
+            padding: const EdgeInsets.symmetric(horizontal: 10),
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+              children: List.generate(4, (i) => _buildBtn("NUM", i + 1, "${i + 1}", Colors.orange)),
+            ),
+          ),
+          
+          const SizedBox(height: 10),
+
+          // 4. 플레이어 버튼
+          Expanded(
+            flex: 4,
+            child: GridView.builder(
+              padding: const EdgeInsets.all(10),
+              gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
+                crossAxisCount: 2,
+                childAspectRatio: 2.0,
+                mainAxisSpacing: 10,
+                crossAxisSpacing: 10,
+              ),
+              itemCount: players.length,
+              itemBuilder: (context, index) {
+                final user = players[index];
+                final isMe = user.id == NetworkManager().me.id;
+                Color color = isMe ? Colors.green : Colors.blue;
+                if (user.id == attackerId) color = Colors.yellow;
+                if (user.id == targetId) color = Colors.red;
+                if (deadPlayers.contains(user.id)) color = Colors.grey;
+
+                return GestureDetector(
+                  onTapDown: (_) => _handleInput('NAME', user.id),
+                  child: Container(
+                    decoration: BoxDecoration(
+                      color: color,
+                      borderRadius: BorderRadius.circular(16),
+                      border: Border.all(color: Colors.white, width: 2),
+                    ),
+                    alignment: Alignment.center,
+                    child: Text(
+                      user.nickname,
+                      style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold, color: Colors.black),
+                    ),
+                  ),
+                );
+              },
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildBtn(String type, dynamic val, String label, Color color) {
+    return GestureDetector(
+      onTapDown: (_) => _handleInput(type, val),
+      child: Container(
+        width: 70, height: 70,
+        decoration: BoxDecoration(
+          color: color,
+          shape: BoxShape.circle,
+          border: Border.all(color: Colors.white, width: 2),
+        ),
+        alignment: Alignment.center,
+        child: Text(label, style: const TextStyle(fontSize: 24, fontWeight: FontWeight.bold)),
+      ),
+    );
+  }
+
+  void _showSoloRetryDialog() {
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("연습 실패"),
+        actions: [
+          TextButton(onPressed: () { Navigator.pop(context); Navigator.pop(context); }, child: const Text("나가기")),
+          ElevatedButton(
+            onPressed: () {
+              Navigator.pop(context);
+              setState(() {
+                deadPlayers.clear();
+                _updateBpm(60.0); // 재시작 시 속도 초기화
+                _startGame(players.first.id);
+              });
+            },
+            child: const Text("재도전"),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void _showGameOverDialog(String msg) {
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("게임 종료"),
+        content: Text(msg),
+        actions: [
+          TextButton(onPressed: () { Navigator.pop(context); Navigator.pop(context); }, child: const Text("나가기")),
+        ],
+      ),
+    );
+  }
+}
--- a/packages/core/lib/game/janggi_game.dart
+++ b/packages/core/lib/game/janggi_game.dart
@ -13,15 +13,12 @@ class JanggiGame extends BaseGame {
  @override
  void onStart() {
    super.onStart();
-    // 게임 시작 시 초기화 로직이 필요하면 여기에 추가
  }

  // [수정] 필수 메서드 구현 추가
  @override
  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
-    // BaseGame은 패킷 수신 시 UI(JanggiScreen)에 전달하는 역할이 주가 되므로
-    // 여기서는 특별한 로직 없이 두거나, 필요시 전역 상태를 업데이트합니다.
-    // 실제 게임 로직은 JanggiScreen의 StreamBuilder나 리스너에서 처리됩니다.
+    // 게임 로직은 JanggiScreen 내부에서 NetworkManager 스트림을 통해 처리합니다.
  }

  @override
@ -217,7 +214,6 @@ class _JanggiScreenState extends State<JanggiScreen> {
         }
       }
    }
-    // 상(象), 포(包) 등은 복잡하여 생략 (필요시 추가 구현)
    
    return moves;
  }
@ -247,7 +243,8 @@ class _JanggiScreenState extends State<JanggiScreen> {

  @override
  Widget build(BuildContext context) {
-    // 내가 초나라(Green)라면 보드를 뒤집어서 보여줌
+    final bool myTurn = currentTurn == (widget.isHan ? Team.han : Team.cho);
+    // 내가 초나라(Green)라면 보드를 뒤집어서 보여줌 (아래가 내 진영이 되도록)
    final bool flipBoard = !widget.isHan; 

    return Scaffold(
--- a/packages/core/lib/game/jump_game.dart
+++ b/packages/core/lib/game/jump_game.dart
@ -0,0 +1,239 @@
+import 'dart:async';
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:playwith_core/playwith_core.dart';
+
+class JumpGame extends BaseGame {
+  @override
+  String get id => "jump_battle";
+  @override
+  String get name => "점프 배틀";
+  @override
+  String get description => "장애물을 피해 오래 살아남으세요!";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) { }
+
+  @override
+  Widget buildHostView(BuildContext context) => JumpGameScreen(isHost: true, gameInstance: this);
+  @override
+  Widget buildGuestView(BuildContext context) => JumpGameScreen(isHost: false, gameInstance: this);
+}
+
+class JumpGameScreen extends StatefulWidget {
+  final bool isHost;
+  final JumpGame gameInstance;
+
+  const JumpGameScreen({super.key, required this.isHost, required this.gameInstance});
+
+  @override
+  State<JumpGameScreen> createState() => _JumpGameScreenState();
+}
+
+class _JumpGameScreenState extends State<JumpGameScreen> with SingleTickerProviderStateMixin {
+  late Ticker _ticker;
+
+  // 게임 상태
+  double playerY = 0.0; // 0.0(바닥) ~ 1.0(최대 점프)
+  double velocityY = 0.0;
+  bool isJumping = false;
+  
+  double scrollSpeed = 0.015;
+  int score = 0; // 거리 점수
+  int opponentScore = 0;
+  
+  List<_Obstacle> obstacles = [];
+  bool isGameOver = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _ticker = createTicker(_gameLoop)..start();
+    NetworkManager().messageStream.listen(_handleMessage);
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+    if (payload['type'] == 'SCORE_UPDATE') {
+      setState(() => opponentScore = payload['score']);
+    }
+  }
+
+  void _jump() {
+    if (!isJumping && !isGameOver) {
+      velocityY = 0.045; // 점프 힘
+      isJumping = true;
+      SoundManager().playSfx(SoundKey.click);
+    }
+  }
+
+  void _gameLoop(Duration elapsed) {
+    if (isGameOver) return;
+
+    setState(() {
+      // 1. 중력 적용
+      playerY += velocityY;
+      velocityY -= 0.0025; // 중력값
+
+      // 바닥 착지
+      if (playerY <= 0) {
+        playerY = 0;
+        isJumping = false;
+        velocityY = 0;
+      }
+
+      // 2. 장애물 생성 및 이동
+      if (obstacles.isEmpty || obstacles.last.x < 0.5) {
+        // 일정 간격으로 생성
+        if (Random().nextDouble() < 0.02) {
+          obstacles.add(_Obstacle(x: 1.5, width: 0.1, height: 0.1 + Random().nextDouble() * 0.1));
+        }
+      }
+
+      for (var obs in obstacles) {
+        obs.x -= scrollSpeed;
+      }
+      obstacles.removeWhere((obs) => obs.x < -1.2);
+
+      // 3. 점수 증가 (생존 시간)
+      score++;
+      if (score % 10 == 0) {
+         NetworkManager().sendMessage({'type': 'SCORE_UPDATE', 'score': score});
+      }
+      
+      // 난이도 증가
+      if (score % 500 == 0) scrollSpeed += 0.001;
+
+      // 4. 충돌 체크
+      // 플레이어 X위치는 -0.6 정도로 고정 가정
+      double playerX = -0.6;
+      double playerSize = 0.1; // 히트박스 크기
+
+      for (var obs in obstacles) {
+        // X축 겹침
+        if (playerX + playerSize > obs.x && playerX - playerSize < obs.x + obs.width) {
+          // Y축 겹침 (플레이어가 장애물보다 낮으면 충돌)
+          if (playerY < obs.height) {
+            _gameOver();
+          }
+        }
+      }
+    });
+  }
+
+  void _gameOver() {
+    isGameOver = true;
+    _ticker.stop();
+    SoundManager().playSfx(SoundKey.wrong);
+    
+    String result = score > opponentScore ? "승리! (상대: $opponentScore)" : "패배... (상대: $opponentScore)";
+    
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("충돌!"),
+        content: Text("기록: $score m\n$result"),
+        actions: [
+          TextButton(
+            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
+            child: const Text("나가기"),
+          )
+        ],
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _ticker.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          children: [
+            Text("나: $score m"),
+            Text("상대: $opponentScore m"),
+          ],
+        ),
+      ),
+      body: GestureDetector(
+        onTap: _jump,
+        child: Container(
+          color: Colors.white,
+          child: CustomPaint(
+            painter: JumpGamePainter(playerY: playerY, obstacles: obstacles),
+            size: Size.infinite,
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _Obstacle {
+  double x;
+  double width;
+  double height;
+  _Obstacle({required this.x, required this.width, required this.height});
+}
+
+class JumpGamePainter extends CustomPainter {
+  final double playerY;
+  final List<_Obstacle> obstacles;
+
+  JumpGamePainter({required this.playerY, required this.obstacles});
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final paint = Paint()..color = Colors.black;
+    
+    // 바닥 선
+    double groundY = size.height * 0.8;
+    canvas.drawLine(Offset(0, groundY), Offset(size.width, groundY), paint..strokeWidth = 2);
+
+    // 좌표 변환: playerY (0~1) -> 화면 Y (groundY ~ 위쪽)
+    double toScreenY(double yRatio) => groundY - (yRatio * size.height * 0.5);
+    double toScreenX(double xRatio) => size.width/2 + (xRatio * size.width/2);
+
+    // 플레이어 (공룡/네모)
+    paint.color = Colors.green;
+    double pSize = 40;
+    Rect playerRect = Rect.fromCenter(
+      center: Offset(size.width * 0.2, toScreenY(playerY) - pSize/2),
+      width: pSize,
+      height: pSize,
+    );
+    canvas.drawRect(playerRect, paint);
+
+    // 장애물
+    paint.color = Colors.redAccent;
+    for (var obs in obstacles) {
+      // 화면 좌표 변환
+      // obs.x: 0이 중앙, -1이 왼쪽 끝
+      // 여기선 간단히 매핑
+      double obsX = size.width/2 + (obs.x * size.width/2); 
+      // -> 위쪽 playerX(-0.6)과 좌표계 통일을 위해 약간 보정 필요하지만, 
+      // 시각적 편의상 직접 매핑:
+      // 플레이어는 화면 좌측 20% 지점 고정.
+      // 장애물은 오른쪽에서 왼쪽으로 이동.
+      // obs.x = 1.5 -> 0.5 -> -1.0 
+      
+      // 화면 비율 그대로 사용
+      double left = (obs.x + 1) / 2 * size.width; 
+      double top = groundY - (obs.height * size.height * 0.5);
+      double w = obs.width * size.width * 0.5;
+      
+      canvas.drawRect(Rect.fromLTWH(left, top, w, groundY - top), paint);
+    }
+  }
+
+  @override
+  bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
+}
--- a/packages/core/lib/game/math_run_game.dart
+++ b/packages/core/lib/game/math_run_game.dart
@ -0,0 +1,297 @@
+import 'dart:async';
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:playwith_core/playwith_core.dart';
+
+class MathRunGame extends BaseGame {
+  @override
+  String get id => "math_run";
+  @override
+  String get name => "매스 런";
+  @override
+  String get description => "좋은 문을 통과해 숫자를 키우세요!";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // UI에서 처리
+  }
+
+  @override
+  Widget buildHostView(BuildContext context) => MathRunScreen(isHost: true, gameInstance: this);
+  @override
+  Widget buildGuestView(BuildContext context) => MathRunScreen(isHost: false, gameInstance: this);
+}
+
+class MathRunScreen extends StatefulWidget {
+  final bool isHost;
+  final MathRunGame gameInstance;
+
+  const MathRunScreen({super.key, required this.isHost, required this.gameInstance});
+
+  @override
+  State<MathRunScreen> createState() => _MathRunScreenState();
+}
+
+class _MathRunScreenState extends State<MathRunScreen> with SingleTickerProviderStateMixin {
+  late Ticker _ticker;
+  
+  // 게임 상태
+  double playerX = 0.0; // -1.0 (좌) ~ 1.0 (우)
+  int myScore = 1; // 현재 병력(점수)
+  int opponentScore = 1;
+  
+  double gameSpeed = 0.008; // 내려오는 속도
+  double distanceTraveled = 0;
+  
+  List<_Gate> gates = [];
+  bool isPlaying = true;
+  bool isGameOver = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _spawnInitialGates();
+    _ticker = createTicker(_gameLoop)..start();
+    NetworkManager().messageStream.listen(_handleMessage);
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+    if (payload['type'] == 'SCORE_UPDATE') {
+      setState(() {
+        opponentScore = payload['score'];
+      });
+    } else if (payload['type'] == 'GAME_OVER_OPPONENT') {
+       // 상대방 죽음 알림 (옵션)
+    }
+  }
+
+  void _spawnInitialGates() {
+    // 초기 게이트 생성
+    for (int i = 1; i < 5; i++) {
+      _spawnGateRow(-1.0 + (i * 0.6)); // Y 위치
+    }
+  }
+
+  void _spawnGateRow(double y) {
+    final random = Random();
+    // 좌측 게이트
+    int val1 = random.nextInt(10) + 2;
+    bool isMult1 = random.nextBool();
+    if (!isMult1) val1 *= 5; // 더하기는 좀 더 큰 수로
+
+    // 우측 게이트
+    int val2 = random.nextInt(10) + 2;
+    bool isMult2 = random.nextBool();
+    if (!isMult2) val2 *= 5;
+
+    // 가끔 함정(나누기/빼기) 추가
+    if (random.nextDouble() < 0.3) {
+      val1 = -val1; 
+    }
+    
+    gates.add(_Gate(x: -0.5, y: y, value: val1, isMultiply: isMult1));
+    gates.add(_Gate(x: 0.5, y: y, value: val2, isMultiply: isMult2));
+  }
+
+  void _gameLoop(Duration elapsed) {
+    if (!isPlaying || isGameOver) return;
+
+    setState(() {
+      // 게이트 이동 (플레이어가 앞으로 가는 효과)
+      for (var gate in gates) {
+        gate.y += gameSpeed;
+      }
+
+      // 지나간 게이트 삭제 및 새 게이트 생성
+      if (gates.isNotEmpty && gates.first.y > 1.2) {
+        gates.removeAt(0);
+        gates.removeAt(0); // 한 줄(2개) 삭제
+        
+        // 새 줄 생성 (화면 위쪽 보이지 않는 곳에)
+        double lastY = gates.last.y;
+        _spawnGateRow(lastY - 0.6); // 간격 0.6
+        
+        // 속도 점진적 증가
+        gameSpeed += 0.0001;
+        distanceTraveled += 0.1;
+      }
+
+      // 충돌 감지
+      for (var gate in gates) {
+        if (!gate.passed && gate.y > 0.75 && gate.y < 0.85) { // 플레이어 Y 위치 근처
+          // X 범위 체크 (플레이어 크기 고려)
+          if ((playerX - gate.x).abs() < 0.4) {
+            _applyGateEffect(gate);
+            gate.passed = true;
+          }
+        }
+      }
+
+      // 점수 0 되면 게임 오버
+      if (myScore <= 0) {
+        _finishGame();
+      }
+    });
+  }
+
+  void _applyGateEffect(_Gate gate) {
+    if (gate.isMultiply) {
+      if (gate.value > 0) myScore *= gate.value;
+      else myScore = (myScore / gate.value.abs()).floor(); // 음수 곱하기는 나누기로 처리 (함정)
+    } else {
+      myScore += gate.value;
+    }
+    SoundManager().playSfx(gate.value > 0 ? SoundKey.correct : SoundKey.wrong);
+    
+    // 점수 전송
+    NetworkManager().sendMessage({'type': 'SCORE_UPDATE', 'score': myScore});
+  }
+
+  void _onPanUpdate(DragUpdateDetails details) {
+    if (isGameOver) return;
+    setState(() {
+      playerX += details.delta.dx / (MediaQuery.of(context).size.width / 2);
+      playerX = playerX.clamp(-0.8, 0.8);
+    });
+  }
+
+  void _finishGame() {
+    isPlaying = false;
+    isGameOver = true;
+    NetworkManager().sendMessage({'type': 'GAME_OVER_OPPONENT', 'score': myScore});
+    
+    String result = myScore > opponentScore ? "승리! (상대: $opponentScore)" : "패배... (상대: $opponentScore)";
+    if (myScore == opponentScore) result = "무승부!";
+
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("게임 종료"),
+        content: Text("최종 병력: $myScore\n$result"),
+        actions: [
+          TextButton(
+            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
+            child: const Text("나가기"),
+          )
+        ],
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _ticker.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          children: [
+            Text("나: $myScore 💂"),
+            Text("상대: $opponentScore 💂"),
+          ],
+        ),
+      ),
+      backgroundColor: Colors.grey[900],
+      body: GestureDetector(
+        onPanUpdate: _onPanUpdate,
+        child: Container(
+          color: Colors.transparent,
+          width: double.infinity,
+          height: double.infinity,
+          child: CustomPaint(
+            painter: MathRunPainter(playerX: playerX, gates: gates, score: myScore),
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _Gate {
+  double x; // -0.5 (왼쪽), 0.5 (오른쪽)
+  double y;
+  int value;
+  bool isMultiply;
+  bool passed = false;
+
+  _Gate({required this.x, required this.y, required this.value, required this.isMultiply});
+}
+
+class MathRunPainter extends CustomPainter {
+  final double playerX;
+  final List<_Gate> gates;
+  final int score;
+
+  MathRunPainter({required this.playerX, required this.gates, required this.score});
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final center = size.center(Offset.zero);
+    double toScreenX(double v) => center.dx + v * (size.width / 2);
+    double toScreenY(double v) => center.dy + v * (size.height / 2); // v: -1(상) ~ 1(하)
+
+    // 바닥 격자 효과 (속도감)
+    final paintLine = Paint()..color = Colors.white10..strokeWidth = 2;
+    canvas.drawLine(Offset(size.width * 0.3, 0), Offset(0, size.height), paintLine);
+    canvas.drawLine(Offset(size.width * 0.7, 0), Offset(size.width, size.height), paintLine);
+
+    // 게이트 그리기
+    for (var gate in gates) {
+      if (gate.passed) continue;
+      
+      // 게이트 색상: 파랑(좋음), 빨강(나쁨)
+      bool isGood = (gate.isMultiply && gate.value > 1) || (!gate.isMultiply && gate.value > 0);
+      final color = isGood ? Colors.blueAccent : Colors.redAccent;
+      final paintGate = Paint()..color = color.withOpacity(0.6);
+
+      Rect rect = Rect.fromCenter(
+        center: Offset(toScreenX(gate.x), toScreenY(gate.y)),
+        width: size.width * 0.45,
+        height: 100, // 고정 높이
+      );
+      
+      canvas.drawRRect(RRect.fromRectAndRadius(rect, const Radius.circular(10)), paintGate);
+      
+      // 텍스트
+      String op = gate.isMultiply ? "x" : (gate.value >= 0 ? "+" : "");
+      // 나누기 함정은 음수 곱하기로 표현했으므로 표시 변환
+      if (gate.isMultiply && gate.value < 0) { op = "÷"; }
+      
+      String text = "$op${gate.value.abs()}";
+      
+      TextSpan span = TextSpan(
+        style: const TextStyle(color: Colors.white, fontSize: 24, fontWeight: FontWeight.bold), 
+        text: text
+      );
+      TextPainter tp = TextPainter(text: span, textDirection: TextDirection.ltr);
+      tp.layout();
+      tp.paint(canvas, rect.center - Offset(tp.width / 2, tp.height / 2));
+    }
+
+    // 플레이어 (병력) 그리기
+    final paintPlayer = Paint()..color = Colors.yellow;
+    final playerCenter = Offset(toScreenX(playerX), toScreenY(0.8));
+    
+    // 메인 캐릭터
+    canvas.drawCircle(playerCenter, 15, paintPlayer);
+    
+    // 군중 효과 (점수에 따라 작은 원 추가)
+    int crowd = min(score, 20); // 최대 20개까지만 그림
+    for (int i = 0; i < crowd; i++) {
+      double angle = (i / crowd) * 2 * pi;
+      double radius = 25.0;
+      canvas.drawCircle(playerCenter + Offset(cos(angle)*radius, sin(angle)*radius), 5, paintPlayer..color = Colors.yellow.withOpacity(0.7));
+    }
+  }
+
+  @override
+  bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
+}
--- a/packages/core/lib/game/othello_game.dart
+++ b/packages/core/lib/game/othello_game.dart
@ -0,0 +1,325 @@
+import 'dart:async';
+import 'package:flutter/material.dart';
+import 'package:playwith_core/playwith_core.dart';
+
+class OthelloGame extends BaseGame {
+  @override
+  String get id => "othello";
+  @override
+  String get name => "오셀로";
+  @override
+  String get description => "돌을 뒤집어라!\n마지막에 웃는 자가 승리";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // UI에서 처리
+  }
+
+  @override
+  Widget buildHostView(BuildContext context) => OthelloScreen(myStone: 1, gameInstance: this); // 1: 흑(선공)
+  @override
+  Widget buildGuestView(BuildContext context) => OthelloScreen(myStone: 2, gameInstance: this); // 2: 백(후공)
+}
+
+class OthelloScreen extends StatefulWidget {
+  final int myStone; // 1: Black, 2: White
+  final OthelloGame gameInstance;
+
+  const OthelloScreen({super.key, required this.myStone, required this.gameInstance});
+
+  @override
+  State<OthelloScreen> createState() => _OthelloScreenState();
+}
+
+class _OthelloScreenState extends State<OthelloScreen> {
+  // 0: 빈칸, 1: 흑, 2: 백
+  final List<List<int>> board = List.generate(8, (_) => List.filled(8, 0));
+  int currentTurn = 1; // 흑 먼저
+  
+  // [수정] _Point 사용
+  List<_Point> validMoves = []; 
+
+  @override
+  void initState() {
+    super.initState();
+    _initBoard();
+    _calculateValidMoves();
+    NetworkManager().messageStream.listen(_handleMessage);
+  }
+
+  void _initBoard() {
+    // 오셀로 초기 배치
+    board[3][3] = 2;
+    board[3][4] = 1;
+    board[4][3] = 1;
+    board[4][4] = 2;
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+    if (payload['type'] == 'MOVE') {
+      int x = payload['x'];
+      int y = payload['y'];
+      int stone = payload['stone'];
+      _executeMove(x, y, stone);
+    } else if (payload['type'] == 'PASS') {
+      _passTurn();
+    }
+  }
+
+  void _onTap(int x, int y) {
+    if (currentTurn != widget.myStone) return;
+    if (!_isValidMove(x, y, widget.myStone)) return;
+
+    _executeMove(x, y, widget.myStone);
+    NetworkManager().sendMessage({
+      'type': 'MOVE',
+      'x': x,
+      'y': y,
+      'stone': widget.myStone
+    });
+  }
+
+  void _executeMove(int x, int y, int stone) {
+    setState(() {
+      board[y][x] = stone;
+      _flipStones(x, y, stone);
+      
+      currentTurn = (stone == 1) ? 2 : 1;
+      _calculateValidMoves(); 
+      
+      // 내가 둘 곳이 없으면 패스 처리
+      if (currentTurn == widget.myStone && validMoves.isEmpty) {
+        if (_isBoardFull() || _getScore(1) + _getScore(2) == 64) {
+          _showGameOver();
+        } else {
+          ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("둘 곳이 없어 턴을 넘깁니다.")));
+          NetworkManager().sendMessage({'type': 'PASS'});
+          Future.delayed(const Duration(seconds: 1), _passTurn);
+        }
+      }
+    });
+    SoundManager().playSfx(SoundKey.click);
+  }
+
+  void _passTurn() {
+    setState(() {
+      currentTurn = (currentTurn == 1) ? 2 : 1;
+      _calculateValidMoves();
+      
+      // 패스했는데 나도 둘 곳 없으면 게임 종료
+      if (currentTurn == widget.myStone && validMoves.isEmpty) {
+        _showGameOver();
+      }
+    });
+  }
+
+  void _flipStones(int x, int y, int stone) {
+    final directions = [
+      [-1,-1], [0,-1], [1,-1],
+      [-1, 0],         [1, 0],
+      [-1, 1], [0, 1], [1, 1]
+    ];
+
+    for (var d in directions) {
+      int dx = d[0], dy = d[1];
+      int nx = x + dx, ny = y + dy;
+      List<_Point> flippable = []; // [수정] _Point 사용
+
+      while (nx >= 0 && nx < 8 && ny >= 0 && ny < 8) {
+        if (board[ny][nx] == 0) break;
+        if (board[ny][nx] == stone) {
+          for (var p in flippable) board[p.y][p.x] = stone;
+          break;
+        }
+        flippable.add(_Point(nx, ny));
+        nx += dx; ny += dy;
+      }
+    }
+  }
+
+  bool _isValidMove(int x, int y, int stone) {
+    if (board[y][x] != 0) return false;
+
+    final directions = [
+      [-1,-1], [0,-1], [1,-1],
+      [-1, 0],         [1, 0],
+      [-1, 1], [0, 1], [1, 1]
+    ];
+
+    for (var d in directions) {
+      int dx = d[0], dy = d[1];
+      int nx = x + dx, ny = y + dy;
+      bool hasOpponent = false;
+
+      while (nx >= 0 && nx < 8 && ny >= 0 && ny < 8) {
+        if (board[ny][nx] == 0) break;
+        if (board[ny][nx] == stone) {
+          if (hasOpponent) return true;
+          break;
+        }
+        hasOpponent = true;
+        nx += dx; ny += dy;
+      }
+    }
+    return false;
+  }
+
+  void _calculateValidMoves() {
+    validMoves.clear();
+    if (currentTurn != widget.myStone) return;
+
+    for (int y = 0; y < 8; y++) {
+      for (int x = 0; x < 8; x++) {
+        if (_isValidMove(x, y, widget.myStone)) {
+          validMoves.add(_Point(x, y)); // [수정] _Point 사용
+        }
+      }
+    }
+  }
+
+  bool _isBoardFull() {
+    for (var row in board) {
+      if (row.contains(0)) return false;
+    }
+    return true;
+  }
+
+  int _getScore(int stone) {
+    int count = 0;
+    for (var row in board) {
+      for (var cell in row) {
+        if (cell == stone) count++;
+      }
+    }
+    return count;
+  }
+
+  void _showGameOver() {
+    int blackScore = _getScore(1);
+    int whiteScore = _getScore(2);
+    String msg;
+    
+    if (blackScore == whiteScore) msg = "무승부입니다!";
+    else if (widget.myStone == 1) {
+      msg = blackScore > whiteScore ? "승리했습니다! 🎉" : "패배했습니다... 😭";
+    } else {
+      msg = whiteScore > blackScore ? "승리했습니다! 🎉" : "패배했습니다... 😭";
+    }
+
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("게임 종료"),
+        content: Text("$msg\n흑: $blackScore vs 백: $whiteScore"),
+        actions: [
+          TextButton(
+            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
+            child: const Text("나가기"),
+          )
+        ],
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text("오셀로")),
+      backgroundColor: Colors.green[800],
+      body: Column(
+        children: [
+          // 점수판
+          Padding(
+            padding: const EdgeInsets.all(20),
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceAround,
+              children: [
+                _buildPlayerInfo("흑 (Black)", 1),
+                _buildPlayerInfo("백 (White)", 2),
+              ],
+            ),
+          ),
+
+          // 보드
+          Expanded(
+            child: Center(
+              child: AspectRatio(
+                aspectRatio: 1.0,
+                child: Container(
+                  margin: const EdgeInsets.all(10),
+                  color: Colors.black,
+                  padding: const EdgeInsets.all(4),
+                  child: GridView.builder(
+                    physics: const NeverScrollableScrollPhysics(),
+                    gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
+                      crossAxisCount: 8,
+                      crossAxisSpacing: 2,
+                      mainAxisSpacing: 2,
+                    ),
+                    itemCount: 64,
+                    itemBuilder: (context, index) {
+                      int x = index % 8;
+                      int y = index ~/ 8;
+                      int cell = board[y][x];
+                      bool isValid = validMoves.any((p) => p.x == x && p.y == y);
+
+                      return GestureDetector(
+                        onTap: () => _onTap(x, y),
+                        child: Container(
+                          color: Colors.green[700],
+                          child: Center(
+                            child: cell == 0 
+                                ? (isValid ? Container(width: 10, height: 10, decoration: BoxDecoration(color: Colors.black26, shape: BoxShape.circle)) : null)
+                                : Container(
+                                    width: 30, height: 30,
+                                    decoration: BoxDecoration(
+                                      color: cell == 1 ? Colors.black : Colors.white,
+                                      shape: BoxShape.circle,
+                                      boxShadow: const [BoxShadow(blurRadius: 2, offset: Offset(1,1), color: Colors.black54)]
+                                    ),
+                                  ),
+                          ),
+                        ),
+                      );
+                    },
+                  ),
+                ),
+              ),
+            ),
+          ),
+          
+          if (currentTurn == widget.myStone)
+            const Padding(padding: EdgeInsets.all(20), child: Text("당신의 차례입니다", style: TextStyle(color: Colors.white, fontSize: 18, fontWeight: FontWeight.bold)))
+          else
+            const Padding(padding: EdgeInsets.all(20), child: Text("상대방 생각 중...", style: TextStyle(color: Colors.white70, fontSize: 16))),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildPlayerInfo(String label, int stone) {
+    bool isTurn = currentTurn == stone;
+    bool isMe = widget.myStone == stone;
+    
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
+      decoration: BoxDecoration(
+        color: isTurn ? Colors.amber.withOpacity(0.8) : Colors.white24,
+        borderRadius: BorderRadius.circular(10),
+        border: isMe ? Border.all(color: Colors.yellow, width: 2) : null,
+      ),
+      child: Column(
+        children: [
+          Text(label, style: TextStyle(color: stone == 1 ? Colors.black : Colors.white, fontWeight: FontWeight.bold)),
+          Text("${_getScore(stone)}", style: TextStyle(color: stone == 1 ? Colors.black : Colors.white, fontSize: 24, fontWeight: FontWeight.bold)),
+          if (isMe) const Text("YOU", style: TextStyle(fontSize: 10, color: Colors.redAccent, fontWeight: FontWeight.bold)),
+        ],
+      ),
+    );
+  }
+}
+
+// [수정] Private Class로 변경하여 충돌 방지
+class _Point { final int x, y; _Point(this.x, this.y); }
--- a/packages/core/lib/game/sequence_memory_game.dart
+++ b/packages/core/lib/game/sequence_memory_game.dart
@ -0,0 +1,414 @@
+import 'dart:async';
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:playwith_core/playwith_core.dart';
+
+class SequenceMemoryGame extends BaseGame {
+  @override
+  String get id => "sequence_memory";
+  @override
+  String get name => "기억의 신";
+  @override
+  String get description => "순서를 기억해 똑같이 누르세요!\n글자가 뒤섞여 나옵니다.";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // BaseGame 핸들러
+  }
+
+  @override
+  Widget buildHostView(BuildContext context) => SequenceMemoryScreen(isHost: true, gameInstance: this);
+  @override
+  Widget buildGuestView(BuildContext context) => SequenceMemoryScreen(isHost: false, gameInstance: this);
+}
+
+class SequenceMemoryScreen extends StatefulWidget {
+  final bool isHost;
+  final SequenceMemoryGame gameInstance;
+
+  const SequenceMemoryScreen({super.key, required this.isHost, required this.gameInstance});
+
+  @override
+  State<SequenceMemoryScreen> createState() => _SequenceMemoryScreenState();
+}
+
+class _SequenceMemoryScreenState extends State<SequenceMemoryScreen> {
+  // --- 게임 설정 ---
+  int round = 1; 
+  int sequenceLength = 3; 
+  
+  // 0: Red(Host), 1: Blue(Guest)
+  int currentTurn = 0; 
+  
+  // [수정] 데이터 풀 대폭 확장 (랜덤성을 위해)
+  final List<String> _poolNum = List.generate(25, (i) => '${i + 1}'); // 1~25
+  final List<String> _poolKor = ['가','나','다','라','마','바','사','아','자','차','카','타','파','하'];
+  final List<String> _poolEng = List.generate(26, (i) => String.fromCharCode('A'.codeUnitAt(0) + i)); // A~Z
+  final List<String> _poolEmo = [
+    '🍎','🍌','🍇','🍉','🍓','🍒','🍍','🥝','🍋','🥑','🥦','🌽','🥕','🌭','🍔','🍟','🍕','🥪','🌮','🍦','🍧','🍩','🍪','🎂','🍬'
+  ];
+
+  // 현재 라운드 데이터
+  List<String> gridItems = []; 
+  List<int> targetSequence = []; 
+  int currentGridSize = 2; 
+  
+  // 플레이 상태
+  bool isShowingSequence = false; 
+  int? activeHighlightIndex; 
+  int inputIndex = 0; 
+
+  String infoMessage = "대결 시작!";
+  Color infoColor = Colors.white;
+
+  // AI 관련
+  bool isSolo = false;
+  final UserInfo aiPlayer = const UserInfo(id: 'ai_bot', nickname: '🤖 알파고', colorValue: 0xFF607D8B);
+
+  @override
+  void initState() {
+    super.initState();
+    
+    if (NetworkManager().guestList.isEmpty) {
+      isSolo = true;
+    }
+
+    NetworkManager().messageStream.listen(_handleMessage);
+
+    if (widget.isHost) {
+      Future.delayed(const Duration(seconds: 1), () {
+        _startRound(1, 0); 
+      });
+    }
+  }
+
+  // 라운드에 따른 그리드 크기
+  int _getGridDimension(int r) {
+    if (r <= 5) return 2;      // 1~5라운드: 2x2
+    if (r <= 15) return 3;     // 6~15라운드: 3x3
+    return 5;                  // 16라운드~: 5x5
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+    
+    String type = payload['type'];
+
+    if (type == 'NEW_ROUND') {
+      setState(() {
+        round = payload['round'];
+        currentTurn = payload['turn'];
+        gridItems = List<String>.from(payload['gridItems']);
+        targetSequence = List<int>.from(payload['sequence']);
+        
+        sequenceLength = targetSequence.length;
+        currentGridSize = _getGridDimension(round);
+        
+        inputIndex = 0;
+        isShowingSequence = true;
+        activeHighlightIndex = null;
+        
+        bool isMyTurn = _isMyTurn();
+        if (isMyTurn) {
+          infoMessage = "순서를 잘 보세요!";
+          infoColor = Colors.yellow;
+        } else {
+          String name = (currentTurn == 1 && isSolo) ? aiPlayer.nickname : "상대방";
+          infoMessage = "$name이(가) 기억하는 중...";
+          infoColor = Colors.grey;
+        }
+      });
+
+      _playSequenceAnimation();
+    } 
+    else if (type == 'TURN_COMPLETE') {
+      if (widget.isHost) {
+        if (currentTurn == 0) {
+          _startRound(round, 1); // 라운드 유지
+        } else {
+          _startRound(round + 1, 0); // 라운드 증가
+        }
+      }
+    }
+    else if (type == 'GAME_OVER') {
+      _showGameOverDialog(payload['winner']);
+    }
+  }
+
+  bool _isMyTurn() {
+    if (widget.isHost) return currentTurn == 0;
+    return currentTurn == 1;
+  }
+
+  // ---------------------------------------------------------------------------
+  // 게임 로직 (Host)
+  // ---------------------------------------------------------------------------
+  void _startRound(int nextRound, int nextTurn) {
+    int dim = _getGridDimension(nextRound);
+    int totalCount = dim * dim; // 4, 9, 25
+
+    // 1. 데이터 풀 구성 (난이도에 따라 섞음)
+    List<String> currentPool = [];
+    
+    // 기본적으로 숫자는 항상 포함하거나, 라운드가 높아지면 비중을 줄일 수 있음
+    // 여기서는 모든 풀을 합치고 랜덤으로 뽑는 방식
+    currentPool.addAll(_poolNum); 
+    
+    if (nextRound >= 6) currentPool.addAll(_poolKor); // 6~: 한글 추가
+    if (nextRound >= 12) currentPool.addAll(_poolEng); // 12~: 영어 추가
+    if (nextRound >= 18) currentPool.addAll(_poolEmo); // 18~: 이모지 추가
+
+    // 2. [핵심] 전체 풀에서 무작위로 'totalCount'개 뽑기
+    // (순서대로 뽑지 않고 섞어서 뽑음 -> 가, 다, 하, A, Z 가 섞여 나옴)
+    currentPool.shuffle();
+    List<String> nextGridItems = currentPool.take(totalCount).toList();
+    
+    // 3. 정답 시퀀스 생성
+    // 길이: 3 + (라운드 - 1)
+    int length = 3 + (nextRound - 1); 
+    
+    List<int> nextSequence = [];
+    for (int i = 0; i < length; i++) {
+      nextSequence.add(Random().nextInt(totalCount));
+    }
+
+    final payload = {
+      'type': 'NEW_ROUND',
+      'round': nextRound,
+      'turn': nextTurn,
+      'gridItems': nextGridItems,
+      'sequence': nextSequence
+    };
+    
+    _broadcast(payload);
+  }
+
+  void _broadcast(Map<String, dynamic> payload) {
+    if (isSolo) {
+      _handleMessage(payload);
+    } else {
+      NetworkManager().sendMessage(payload);
+      if (widget.isHost) _handleMessage(payload);
+    }
+  }
+
+  // ---------------------------------------------------------------------------
+  // 애니메이션 및 입력
+  // ---------------------------------------------------------------------------
+  Future<void> _playSequenceAnimation() async {
+    await Future.delayed(const Duration(seconds: 2));
+
+    for (int targetIdx in targetSequence) {
+      if (!mounted) return;
+      setState(() {
+        activeHighlightIndex = targetIdx;
+        SoundManager().playSfx(SoundKey.click);
+      });
+      
+      // 난이도별 깜빡임 속도
+      int showTime = max(200, 600 - (round * 15)); 
+      await Future.delayed(Duration(milliseconds: showTime));
+      
+      setState(() => activeHighlightIndex = null);
+      await Future.delayed(const Duration(milliseconds: 150));
+    }
+
+    if (!mounted) return;
+    setState(() {
+      isShowingSequence = false; 
+      
+      if (_isMyTurn()) {
+        infoMessage = "똑같이 누르세요!";
+        infoColor = Colors.greenAccent;
+      } else {
+        if (isSolo && currentTurn == 1) {
+          infoMessage = "${aiPlayer.nickname} 입력 중...";
+          infoColor = Colors.cyanAccent;
+          _playAiTurn();
+        } else {
+          infoMessage = "상대방 입력 중...";
+          infoColor = Colors.grey;
+        }
+      }
+    });
+  }
+
+  Future<void> _playAiTurn() async {
+    int inputDelay = max(250, 700 - (round * 20));
+
+    for (int targetIdx in targetSequence) {
+      if (!mounted) return;
+      await Future.delayed(Duration(milliseconds: inputDelay));
+      
+      setState(() => activeHighlightIndex = targetIdx);
+      SoundManager().playSfx(SoundKey.click);
+      
+      await Future.delayed(const Duration(milliseconds: 150));
+      setState(() => activeHighlightIndex = null);
+    }
+
+    await Future.delayed(const Duration(milliseconds: 500));
+    if (widget.isHost) {
+      _handleMessage({'type': 'TURN_COMPLETE'}); 
+    }
+  }
+
+  void _onButtonTap(int index) {
+    if (!_isMyTurn() || isShowingSequence) return;
+
+    if (targetSequence[inputIndex] == index) {
+      SoundManager().playSfx(SoundKey.click);
+      
+      setState(() => activeHighlightIndex = index);
+      Future.delayed(const Duration(milliseconds: 100), () {
+        if (mounted) setState(() => activeHighlightIndex = null);
+      });
+
+      inputIndex++;
+      
+      if (inputIndex >= targetSequence.length) {
+        SoundManager().playSfx(SoundKey.correct);
+        
+        if (isSolo) {
+           _handleMessage({'type': 'TURN_COMPLETE'});
+        } else {
+           if (widget.isHost) {
+             if (currentTurn == 0) _startRound(round, 1);
+             else _startRound(round + 1, 0);
+           } else {
+             NetworkManager().sendMessage({'type': 'TURN_COMPLETE'});
+           }
+        }
+      }
+    } else {
+      SoundManager().playSfx(SoundKey.wrong);
+      _sendGameOver(1 - currentTurn); 
+    }
+  }
+
+  void _sendGameOver(int winner) {
+    final payload = {'type': 'GAME_OVER', 'winner': winner};
+    _broadcast(payload);
+  }
+
+  void _showGameOverDialog(int winner) {
+    String msg;
+    if (isSolo) {
+      msg = "틀렸습니다!\n최종 기록: ${round}라운드 (길이 $sequenceLength)";
+    } else {
+      int myTeam = widget.isHost ? 0 : 1;
+      msg = (winner == myTeam) ? "승리했습니다! 🎉" : "패배했습니다... 😭";
+    }
+
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("게임 종료"),
+        content: Text(msg),
+        actions: [
+          TextButton(
+            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
+            child: const Text("나가기"),
+          )
+        ],
+      ),
+    );
+  }
+
+  // ---------------------------------------------------------------------------
+  // UI
+  // ---------------------------------------------------------------------------
+  @override
+  Widget build(BuildContext context) {
+    Color teamColor = (currentTurn == 0) ? Colors.redAccent : Colors.blueAccent;
+    double itemFontSize = currentGridSize == 5 ? 20 : 32;
+
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("Round $round (길이: $sequenceLength)"),
+        backgroundColor: Colors.deepPurple,
+      ),
+      backgroundColor: Colors.grey[900],
+      body: Column(
+        children: [
+          // 1. 상태 메시지
+          Container(
+            padding: const EdgeInsets.all(20),
+            width: double.infinity,
+            color: isShowingSequence ? Colors.black54 : teamColor.withOpacity(0.2),
+            child: Column(
+              children: [
+                Text(
+                  infoMessage,
+                  style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold, color: infoColor),
+                  textAlign: TextAlign.center,
+                ),
+                if (!isShowingSequence && _isMyTurn())
+                  Text(
+                    "$inputIndex / $sequenceLength", 
+                    style: const TextStyle(fontSize: 16, color: Colors.white70)
+                  ),
+              ],
+            ),
+          ),
+
+          // 2. 그리드
+          Expanded(
+            child: Center(
+              child: Padding(
+                padding: const EdgeInsets.all(20.0),
+                child: AspectRatio(
+                  aspectRatio: 1.0,
+                  child: GridView.builder(
+                    physics: const NeverScrollableScrollPhysics(),
+                    gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+                      crossAxisCount: currentGridSize,
+                      mainAxisSpacing: 10,
+                      crossAxisSpacing: 10,
+                    ),
+                    itemCount: currentGridSize * currentGridSize,
+                    itemBuilder: (context, index) {
+                      if (gridItems.isEmpty) return const SizedBox();
+                      
+                      String content = gridItems[index];
+                      bool isHighlight = (index == activeHighlightIndex);
+
+                      return GestureDetector(
+                        onTapDown: (_) => _onButtonTap(index),
+                        child: AnimatedContainer(
+                          duration: const Duration(milliseconds: 100),
+                          decoration: BoxDecoration(
+                            color: isHighlight ? Colors.yellowAccent : Colors.white,
+                            borderRadius: BorderRadius.circular(12),
+                            border: Border.all(
+                              color: isHighlight ? Colors.orange : Colors.grey,
+                              width: isHighlight ? 4 : 1
+                            ),
+                            boxShadow: isHighlight ? [
+                              BoxShadow(color: Colors.yellow.withOpacity(0.6), blurRadius: 15)
+                            ] : [],
+                          ),
+                          child: Center(
+                            child: Text(
+                              content,
+                              style: TextStyle(
+                                fontSize: itemFontSize, 
+                                fontWeight: FontWeight.bold,
+                                color: Colors.black87
+                              ),
+                            ),
+                          ),
+                        ),
+                      );
+                    },
+                  ),
+                ),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
--- a/packages/core/lib/game/spider_multi_game.dart
+++ b/packages/core/lib/game/spider_multi_game.dart
@ -1,8 +1,11 @@
 import 'dart:async';
+import 'dart:convert';
 import 'dart:math';
 import 'package:flutter/material.dart';
+import 'package:http/http.dart' as http;
 import 'package:playwith_core/playwith_core.dart';
 import '../model/spider_model.dart';
+import '../model/spider_game_dto.dart';
 import '../widgets/spider_widgets.dart';

 class SpiderMultiGame extends BaseGame {
@ -11,16 +14,62 @@ class SpiderMultiGame extends BaseGame {
  @override
  String get name => "스파이더 배틀";
  @override
-  String get description => "K부터 A까지 카드를 정렬하세요.\n완성하면 상대방에게 카드를 뿌려 공격합니다!";
+  String get description => "세트를 완성하면 상대를 공격합니다!\n(내 남은 카드 중 1장이 상대에게 넘어갑니다)";

-  int? _randomSeed;
+  final StreamController<SpiderGameDto?> _gameDataStreamController = StreamController<SpiderGameDto?>.broadcast();
+
+  Future<SpiderGameDto> _fetchSpiderGame(int difficulty) async {
+    const String baseUrl = "https://lunaticbum.kr";
+    try {
+      final response = await http.get(
+        Uri.parse('$baseUrl/puzzle/spider/start?difficulty=$difficulty'),
+      ).timeout(const Duration(seconds: 5));
+
+      if (response.statusCode == 200) {
+        final data = jsonDecode(utf8.decode(response.bodyBytes));
+        return SpiderGameDto.fromJson(data);
+      }
+    } catch (e) {
+      print("API 호출 실패, 로컬 생성: $e");
+    }
+    return _generateLocalGame(difficulty);
+  }
+
+  SpiderGameDto _generateLocalGame(int difficulty) {
+    List<int> deck = [];
+    if (difficulty == 1) {
+      for (int i = 0; i < 8; i++) {
+        for (int r = 1; r <= 13; r++) deck.add(r);
+      }
+    } else if (difficulty == 2) {
+      for (int i = 0; i < 4; i++) {
+        for (int r = 1; r <= 13; r++) deck.add(r);
+        for (int r = 1; r <= 13; r++) deck.add(r + 100);
+      }
+    } else {
+      for (int i = 0; i < 2; i++) {
+        for (int r = 1; r <= 13; r++) deck.add(r);
+        for (int r = 1; r <= 13; r++) deck.add(r + 100);
+        for (int r = 1; r <= 13; r++) deck.add(r + 200);
+        for (int r = 1; r <= 13; r++) deck.add(r + 300);
+      }
+    }
+    deck.shuffle();
+    return SpiderGameDto(puzzleId: 0, difficulty: difficulty, cards: deck);
+  }

  @override
-  void onStart() {
+  void onStart() async {
    super.onStart();
    if (NetworkManager().role == NetworkRole.host) {
-      final int seed = Random().nextInt(1000000);
-      final payload = {'type': 'GAME_START_DATA', 'seed': seed};
+      final int diff = NetworkManager().selectedGameConfig['difficulty'] ?? 1;
+      final gameData = await _fetchSpiderGame(diff);
+      
+      final payload = {
+        'type': 'GAME_START_DATA',
+        ...gameData.toJson(),
+      };
+      
      onMessageReceived(NetworkManager().me.id, payload);
      NetworkManager().sendMessage(payload);
    }
@ -29,39 +78,52 @@ class SpiderMultiGame extends BaseGame {
  @override
  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
    if (payload['type'] == 'GAME_START_DATA') {
-      _randomSeed = payload['seed'];
+      final gameData = SpiderGameDto.fromJson(payload);
+      _gameDataStreamController.add(gameData);
    }
  }

+  @override
+  void onDispose() {
+    _gameDataStreamController.close();
+    super.onDispose();
+  }
+
  @override
  Widget buildHostView(BuildContext context) => _buildScreen();
  @override
  Widget buildGuestView(BuildContext context) => _buildScreen();

  Widget _buildScreen() {
-    if (_randomSeed == null) return const Scaffold(body: Center(child: CircularProgressIndicator()));
-    return SpiderBattleScreen(seed: _randomSeed!, gameInstance: this);
+    return StreamBuilder<SpiderGameDto?>(
+      stream: _gameDataStreamController.stream,
+      builder: (context, snapshot) {
+        if (!snapshot.hasData) {
+          return const Scaffold(
+            body: Center(child: CircularProgressIndicator()),
+          );
+        }
+        return SpiderBattleScreen(gameData: snapshot.data!, gameInstance: this);
+      },
+    );
  }
 }

 class SpiderBattleScreen extends StatefulWidget {
-  final int seed;
+  final SpiderGameDto gameData;
  final SpiderMultiGame gameInstance;

-  const SpiderBattleScreen({super.key, required this.seed, required this.gameInstance});
+  const SpiderBattleScreen({super.key, required this.gameData, required this.gameInstance});

  @override
  State<SpiderBattleScreen> createState() => _SpiderBattleScreenState();
 }

 class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
-  // 게임 상태
-  List<List<SpiderCard>> tableau = List.generate(10, (_) => []); // 10개 컬럼
-  List<SpiderCard> stock = []; // 뽑을 카드
-  List<List<SpiderCard>> foundation = []; // 완성된 세트
-  
+  List<List<SpiderCard>> tableau = List.generate(10, (_) => []);
+  List<SpiderCard> stock = [];
+  List<List<SpiderCard>> foundation = [];
  int _moves = 0;
-  final int _numSuits = 1; // 난이도 (1: 스페이드만, 2: 하트/스페이드, 4: 전체)

  @override
  void initState() {
@ -73,102 +135,104 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
  void _handleNetworkMessage(Map<String, dynamic> payload) {
    if (!mounted) return;
    if (payload['type'] == 'ATTACK') {
-      _onAttacked(payload['senderName']);
+      final attackerName = payload['senderName'];
+      _onAttacked(attackerName);
    } else if (payload['type'] == 'GAME_WIN') {
      _showGameOverDialog(payload['winnerName']);
    }
  }

-  // --- 게임 로직 ---
-
  void _initializeGame() {
-    final random = Random(widget.seed);
    List<SpiderCard> deck = [];
-    
-    // 2세트(104장) 생성
    int idCounter = 0;
-    for (int i = 0; i < 8; i++) { // 1 suit 모드 기준 (스페이드 13장 * 8세트)
-      for (int r = 1; r <= 13; r++) {
-        deck.add(SpiderCard(id: idCounter++, suit: SpiderSuit.spade, rank: r));
-      }
+    for (int rawVal in widget.gameData.cards) {
+      SpiderSuit suit = SpiderSuit.spade;
+      int rank = rawVal;
+      if (rawVal > 300) { suit = SpiderSuit.diamond; rank = rawVal - 300; }
+      else if (rawVal > 200) { suit = SpiderSuit.club; rank = rawVal - 200; }
+      else if (rawVal > 100) { suit = SpiderSuit.heart; rank = rawVal - 100; }
+      if (rank < 1) rank = 1;
+      if (rank > 13) rank = 13;
+      deck.add(SpiderCard(id: idCounter++, suit: suit, rank: rank));
    }
-    deck.shuffle(random);

-    // 태블로에 카드 분배 (앞 4줄 6장, 뒤 6줄 5장 = 54장)
    int cardIdx = 0;
+    int totalCards = deck.length;
    for (int i = 0; i < 10; i++) {
      int count = (i < 4) ? 6 : 5;
      for (int j = 0; j < count; j++) {
-        final card = deck[cardIdx++];
-        if (j == count - 1) card.isFaceUp = true; // 맨 윗장 오픈
-        tableau[i].add(card);
+        if (cardIdx < totalCards) {
+          final card = deck[cardIdx++];
+          if (j == count - 1) card.isFaceUp = true;
+          tableau[i].add(card);
+        }
      }
    }
-    // 남은 카드는 스톡으로
-    stock = deck.sublist(cardIdx);
+    if (cardIdx < totalCards) {
+      stock = deck.sublist(cardIdx);
+    }
  }

-  // [공격 받음] 상대가 세트를 완성하면 내 태블로 각 열에 카드 1장씩 추가됨
+  // [수정됨] 공격 처리: 내 스톡에서 카드를 꺼내 내 태블로에 추가
  void _onAttacked(String attackerName) {
-    ScaffoldMessenger.of(context).showSnackBar(
-      SnackBar(content: Text("⚔️ $attackerName님의 공격! 카드가 추가됩니다!"), backgroundColor: Colors.red),
-    );
-    SoundManager().playSfx(SoundKey.wrong);
+    if (stock.isEmpty) {
+      // 스톡이 없으면 공격 무효 (또는 다른 패널티 적용 가능)
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text("⚔️ $attackerName님의 공격을 막았습니다! (남은 카드 없음)")),
+      );
+      return;
+    }

    setState(() {
-      // 방해 카드 생성 (무작위)
-      for (int i = 0; i < 10; i++) {
-        final badCard = SpiderCard(
-          id: 9999 + Random().nextInt(10000), 
-          suit: SpiderSuit.spade, 
-          rank: Random().nextInt(13) + 1, 
-          isFaceUp: true
-        );
-        tableau[i].add(badCard);
-      }
+      // 스톡에서 1장 꺼냄
+      final card = stock.removeLast();
+      card.isFaceUp = true;
+      
+      // 랜덤한 컬럼에 추가
+      int targetCol = Random().nextInt(10);
+      tableau[targetCol].add(card);
+      
+      // 혹시 이 카드로 인해 세트가 완성될 수도 있으니 체크
+      _checkCompleteSet(targetCol);
    });
+
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text("⚔️ $attackerName님의 공격! 카드 1장이 추가됩니다!"),
+        backgroundColor: Colors.redAccent,
+        duration: const Duration(milliseconds: 1500),
+      ),
+    );
+    SoundManager().playSfx(SoundKey.wrong);
  }

-  // [카드 이동] 드래그 앤 드롭
  void _onCardDrop(List<SpiderCard> movingCards, int fromColIndex, int toColIndex) {
    setState(() {
      _moves++;
-      // 1. 원래 위치에서 제거
      final fromCol = tableau[fromColIndex];
      fromCol.removeRange(fromCol.length - movingCards.length, fromCol.length);
-      
-      // 2. 뒷면 카드 뒤집기
      if (fromCol.isNotEmpty && !fromCol.last.isFaceUp) {
        fromCol.last.isFaceUp = true;
      }
-
-      // 3. 새 위치에 추가
      tableau[toColIndex].addAll(movingCards);
-
-      // 4. 세트 완성 체크
      _checkCompleteSet(toColIndex);
    });
  }

-  // [세트 완성 체크] K -> A 순서인지 확인
  void _checkCompleteSet(int colIndex) {
    final col = tableau[colIndex];
    if (col.length < 13) return;

-    // 끝에서 13장 확인
    List<SpiderCard> last13 = col.sublist(col.length - 13);
+    final targetSuit = last13.first.suit;
    bool isComplete = true;
-    
-    // K(13) ... A(1) 순서여야 함
    for (int i = 0; i < 13; i++) {
-      if (last13[i].rank != 13 - i) { 
-        isComplete = false; 
-        break; 
+      if (last13[i].suit != targetSuit || last13[i].rank != 13 - i) { 
+        isComplete = false; break; 
      }
    }

    if (isComplete) {
-      // 완성!
      setState(() {
        col.removeRange(col.length - 13, col.length);
        foundation.add(last13);
@ -176,11 +240,8 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
      });
      
      SoundManager().playSfx(SoundKey.correct);
-      
-      // [공격 전송]
      NetworkManager().sendMessage({'type': 'ATTACK', 'senderName': NetworkManager().me.nickname});

-      // 승리 체크 (8세트 완성)
      if (foundation.length >= 8) {
        final winPayload = {'type': 'GAME_WIN', 'winnerName': NetworkManager().me.nickname};
        NetworkManager().sendMessage(winPayload);
@ -189,36 +250,36 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
    }
  }

-  // [스톡에서 카드 뽑기]
  void _dealFromStock() {
    if (stock.isEmpty) return;
-    // 빈 열이 있으면 규칙상 못 뽑게 할 수도 있으나, 여기선 허용 (캐주얼)
    setState(() {
-      for (int i = 0; i < 10; i++) {
-        if (stock.isNotEmpty) {
-          final card = stock.removeLast();
-          card.isFaceUp = true;
-          tableau[i].add(card);
-          _checkCompleteSet(i); // 운 좋게 완성될 수도 있음
-        }
+      // [수정] 남은 카드가 10장 미만이면 남은 만큼만 뿌림
+      int count = min(10, stock.length);
+      for (int i = 0; i < count; i++) {
+        final card = stock.removeLast();
+        card.isFaceUp = true;
+        tableau[i].add(card);
+        _checkCompleteSet(i);
      }
    });
  }

  bool _canMove(SpiderCard topCard, SpiderCard? bottomCard) {
-    if (bottomCard == null) return true; // 빈 열에는 이동 가능
-    // 규칙: 랭크가 1 작아야 함 (색상은 1 suit 모드라 무시)
+    if (bottomCard == null) return true; 
    return bottomCard.rank == topCard.rank + 1;
  }

  void _showGameOverDialog(String winnerName) {
    bool isMe = winnerName == NetworkManager().me.nickname;
+    if (isMe) SoundManager().playSfx(SoundKey.win);
+    else SoundManager().playSfx(SoundKey.wrong);
+
    showDialog(
      context: context,
      barrierDismissible: false,
      builder: (_) => AlertDialog(
        title: Text(isMe ? "승리! 🎉" : "패배 😭"),
-        content: Text(isMe ? "축하합니다! 모든 세트를 완성했습니다." : "$winnerName 님이 먼저 완료했습니다."),
+        content: Text(isMe ? "축하합니다! 가장 먼저 끝냈습니다." : "$winnerName 님이 먼저 완료했습니다."),
        actions: [
          TextButton(
            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
@ -229,24 +290,27 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
    );
  }

-  // --- UI ---
-
  @override
  Widget build(BuildContext context) {
    final size = MediaQuery.of(context).size;
-    final cardWidth = (size.width - 20) / 10; // 10열
+    final cardWidth = (size.width - 20) / 10; 
    final cardHeight = cardWidth * 1.4;

    return Scaffold(
      backgroundColor: Colors.green[800],
      appBar: AppBar(
-        title: Text("스파이더 배틀 (${foundation.length}/8)"),
+        title: Text("스파이더 (${foundation.length}/8)"),
        backgroundColor: Colors.green[900],
        elevation: 0,
+        actions: [
+          Center(child: Padding(
+            padding: const EdgeInsets.only(right: 16.0),
+            child: Text("이동: $_moves", style: const TextStyle(fontWeight: FontWeight.bold, color: Colors.white70)),
+          ))
+        ],
      ),
      body: Column(
        children: [
-          // 1. 태블로 (카드 놓는 곳)
          Expanded(
            child: Stack(
              children: List.generate(10, (colIndex) {
@ -258,8 +322,6 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
              }),
            ),
          ),
-          
-          // 2. 하단 바 (스톡 & 완성된 덱)
          Container(
            height: cardHeight + 20,
            color: Colors.green[900],
@ -267,24 +329,29 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
-                // 완성된 덱 표시
                Row(
                  children: foundation.map((_) => Padding(
                    padding: const EdgeInsets.only(right: 4.0),
                    child: SpiderCardWidget(
-                      card: SpiderCard(id: 0, suit: SpiderSuit.spade, rank: 13, isFaceUp: true), // K표시
+                      card: SpiderCard(id: 0, suit: SpiderSuit.spade, rank: 13, isFaceUp: true), 
                      width: cardWidth * 0.8, 
                      height: cardHeight * 0.8
                    ),
                  )).toList(),
                ),
-                
-                // 스톡 (클릭 시 배분)
                GestureDetector(
                  onTap: _dealFromStock,
                  child: stock.isEmpty 
                    ? Container(width: cardWidth, height: cardHeight, decoration: BoxDecoration(border: Border.all(color: Colors.white30), borderRadius: BorderRadius.circular(4)))
-                    : SpiderCardWidget(card: SpiderCard(id: -1, suit: SpiderSuit.spade, rank: 0), width: cardWidth, height: cardHeight),
+                    : Stack(
+                        children: [
+                          SpiderCardWidget(card: SpiderCard(id: -1, suit: SpiderSuit.spade, rank: 0), width: cardWidth, height: cardHeight),
+                          Positioned(
+                            bottom: 5, right: 5,
+                            child: Text("${stock.length}", style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 12)),
+                          )
+                        ],
+                      ),
                ),
              ],
            ),
@ -296,18 +363,15 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {

  Widget _buildTableauColumn(int colIndex, double width, double height) {
    final pile = tableau[colIndex];
-    
-    // DragTarget: 이 컬럼으로 카드가 들어오는 것을 감지
    return DragTarget<Map<String, dynamic>>(
      onWillAccept: (data) {
        if (data == null) return false;
        final List<SpiderCard> movingCards = data['cards'];
        final int fromIndex = data['fromIndex'];
-        if (fromIndex == colIndex) return false; // 제자리 드롭 무시
+        if (fromIndex == colIndex) return false; 

        final SpiderCard topMoving = movingCards.first;
        final SpiderCard? targetBottom = pile.isEmpty ? null : pile.last;
-        
        return _canMove(topMoving, targetBottom);
      },
      onAccept: (data) {
@ -319,20 +383,15 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
          height: MediaQuery.of(context).size.height * 0.7,
          child: Stack(
            children: [
-              // 빈 공간 표시 (타겟 영역 확보용)
              Container(width: width, height: 100, color: Colors.transparent),
-              
-              // 쌓인 카드들
              ...List.generate(pile.length, (i) {
                final card = pile[i];
-                final offset = i * 25.0; // 카드 겹침 간격
-
-                // 드래그 가능한 카드인지 확인 (오픈되어 있고, 위 카드들과 연속된 순서인지)
+                final offset = i * 25.0;
+                
                bool isDraggable = card.isFaceUp;
                if (isDraggable && i < pile.length - 1) {
-                  // 내 위에 있는 카드들이 나랑 연속되어야 함
                  for (int k = i; k < pile.length - 1; k++) {
-                    if (pile[k].rank != pile[k+1].rank + 1) {
+                    if (pile[k].suit != pile[k+1].suit || pile[k].rank != pile[k+1].rank + 1) {
                      isDraggable = false;
                      break;
                    }
@ -342,9 +401,7 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
                Widget cardWidget = SpiderCardWidget(card: card, width: width, height: height);

                if (isDraggable) {
-                  // 같이 움직일 카드 묶음
                  final movingCards = pile.sublist(i);
-                  
                  return Positioned(
                    top: offset,
                    child: Draggable<Map<String, dynamic>>(
@ -355,7 +412,7 @@ class _SpiderBattleScreenState extends State<SpiderBattleScreen> {
                          children: movingCards.map((c) => SpiderCardWidget(card: c, width: width, height: height)).toList(),
                        ),
                      ),
-                      childWhenDragging: const SizedBox(), // 드래그 중엔 숨김 (또는 밑장 표시)
+                      childWhenDragging: const SizedBox(), 
                      child: cardWidget,
                    ),
                  );
--- a/packages/core/lib/game/sudoku_multi_game.dart
+++ b/packages/core/lib/game/sudoku_multi_game.dart
@ -18,9 +18,6 @@ class SudokuMultiGame extends BaseGame {

  final StreamController<SudokuGameDto?> _puzzleStreamController = StreamController<SudokuGameDto?>.broadcast();

-  // ---------------------------------------------------------------------------
-  // [Host] 퍼즐 데이터 로딩 로직
-  // ---------------------------------------------------------------------------
  Future<SudokuGameDto> _fetchPuzzleFromApi(String difficulty) async {
    const String baseUrl = "https://lunaticbum.kr";
    try {
@ -47,16 +44,10 @@ class SudokuMultiGame extends BaseGame {
  @override
  void onStart() async {
    super.onStart();
-    
    if (NetworkManager().role == NetworkRole.host) {
      final int diffValue = NetworkManager().selectedGameConfig['difficulty'] ?? 1;
      final puzzleData = await _fetchPuzzleFromApi(diffValue.toString()); 
-      
-      final payload = {
-        'type': 'GAME_DATA',
-        ...puzzleData.toJson(),
-      };
-      
+      final payload = {'type': 'GAME_DATA', ...puzzleData.toJson()};
      onMessageReceived(NetworkManager().me.id, payload);
      NetworkManager().sendMessage(payload);
    }
@ -64,6 +55,9 @@ class SudokuMultiGame extends BaseGame {

  @override
  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // [핵심 수정] GAME_DATA는 스트림으로, ATTACK 등은 이벤트 버스(또는 아래 화면 리스너)로 처리
+    // 하지만 여기서는 StreamBuilder가 화면을 구성하므로, ATTACK 이벤트 처리는 화면(State)에서 NetworkManager를 리스닝하는 것이 가장 빠릅니다.
+    // 따라서 여기서는 게임 데이터만 처리합니다.
    if (payload['type'] == 'GAME_DATA') {
      final puzzle = SudokuGameDto.fromJson(payload);
      _puzzleStreamController.add(puzzle);
@ -78,7 +72,6 @@ class SudokuMultiGame extends BaseGame {

  @override
  Widget buildHostView(BuildContext context) => _buildGameScreen(context);
-
  @override
  Widget buildGuestView(BuildContext context) => _buildGameScreen(context);

@ -88,16 +81,7 @@ class SudokuMultiGame extends BaseGame {
      builder: (context, snapshot) {
        if (!snapshot.hasData) {
          return const Scaffold(
-            body: Center(
-              child: Column(
-                mainAxisAlignment: MainAxisAlignment.center,
-                children: [
-                  CircularProgressIndicator(),
-                  SizedBox(height: 20),
-                  Text("퍼즐을 불러오는 중입니다..."),
-                ],
-              ),
-            ),
+            body: Center(child: CircularProgressIndicator()),
          );
        }
        return SudokuBattleScreen(gameData: snapshot.data!, gameInstance: this);
@ -106,9 +90,6 @@ class SudokuMultiGame extends BaseGame {
  }
 }

-// -----------------------------------------------------------------------------
-// 게임 화면 (UI + 로직)
-// -----------------------------------------------------------------------------
 class SudokuBattleScreen extends StatefulWidget {
  final SudokuGameDto gameData;
  final SudokuMultiGame gameInstance;
@ -141,6 +122,7 @@ class _SudokuBattleScreenState extends State<SudokuBattleScreen> {
    originalCells = List.from(puzzleCells);
    solutionCells = widget.gameData.solution.split('').map(_charToInt).toList();

+    // [핵심 수정] 공격 이벤트 리스너 등록
    NetworkManager().messageStream.listen(_handleNetworkMessage);
  }

@ -164,6 +146,7 @@ class _SudokuBattleScreenState extends State<SudokuBattleScreen> {
  void _applyAttack(String attackerName) {
    List<int> myInputs = [];
    for (int i = 0; i < puzzleCells.length; i++) {
+      // 원래 빈칸이었는데 채워둔 숫자들
      if (originalCells[i] == 0 && puzzleCells[i] != 0) {
        myInputs.add(i);
      }
@ -172,7 +155,7 @@ class _SudokuBattleScreenState extends State<SudokuBattleScreen> {
    if (myInputs.isNotEmpty) {
      final randomIdx = myInputs[Random().nextInt(myInputs.length)];
      setState(() {
-        puzzleCells[randomIdx] = 0;
+        puzzleCells[randomIdx] = 0; // 숫자 지움
      });

      ScaffoldMessenger.of(context).showSnackBar(
@ -259,7 +242,7 @@ class _SudokuBattleScreenState extends State<SudokuBattleScreen> {
      barrierDismissible: false,
      builder: (context) => AlertDialog(
        title: Text(isMe ? "승리! 🎉" : "패배 😭"),
-        content: Text(isMe ? "축하합니다!" : "$winnerName 님이 승리했습니다."),
+        content: Text(isMe ? "축하합니다! $winnerName 님이 승리했습니다." : "$winnerName 님이 먼저 퍼즐을 완성했습니다."),
        actions: [
          TextButton(
            onPressed: () {
@ -304,47 +287,44 @@ class _SudokuBattleScreenState extends State<SudokuBattleScreen> {
          )
        ],
      ),
+      // 하단 배너 광고
+      bottomNavigationBar: const SafeArea(child: AdBannerWidget()),
      body: Column(
        mainAxisAlignment: MainAxisAlignment.start,
        children: [
-          // 1. 상단 빈칸 정보
+          const SizedBox(height: 10),
          Padding(
-            padding: const EdgeInsets.symmetric(vertical: 10.0),
-            child: Text(
-              "남은 빈칸: ${puzzleCells.where((e)=>e==0).length}", 
-              style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 18)
+            padding: const EdgeInsets.all(8.0),
+            child: Text("남은 빈칸: ${puzzleCells.where((e)=>e==0).length}", 
+              style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 16)),
+          ),
+          Padding(
+            padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 10.0),
+            child: Center(
+              child: SudokuBoard(
+                blockSize: blockSize,
+                cells: puzzleCells,
+                originalCells: originalCells,
+                selectedIndex: selectedIndex,
+                selectedNumberPad: selectedNumberPad,
+                incorrectCells: incorrectCells,
+                onCellTapped: (index) {
+                  setState(() {
+                    selectedIndex = index;
+                    if (selectedNumberPad != null) {
+                      _onNumberTapped(selectedNumberPad!);
+                      selectedIndex = null; 
+                      selectedNumberPad = null; 
+                    }
+                  });
+                },
+              ),
            ),
          ),
-          
-          // 2. 게임 보드 (Center와 Expanded 제거하여 상단 배치)
-          Padding(
-            padding: const EdgeInsets.symmetric(horizontal: 16.0),
-            child: SudokuBoard(
-              blockSize: blockSize,
-              cells: puzzleCells,
-              originalCells: originalCells,
-              selectedIndex: selectedIndex,
-              selectedNumberPad: selectedNumberPad,
-              incorrectCells: incorrectCells,
-              onCellTapped: (index) {
-                setState(() {
-                  selectedIndex = index;
-                  // [핵심] 넘버패드 선택된 상태에서 칸 누르면 -> 입력 후 즉시 포커스 해제
-                  if (selectedNumberPad != null) {
-                    _onNumberTapped(selectedNumberPad!);
-                    selectedIndex = null; // 입력했으므로 선택 해제
-                  }
-                });
-              },
-            ),
-          ),
-
-          const Spacer(), // 남은 공간을 밀어내어 키패드를 하단으로 (또는 제거하여 바로 아래 붙일 수 있음)
-
-          // 3. 키패드 (높이 증가)
+          const Spacer(),
          Container(
            padding: const EdgeInsets.fromLTRB(16, 10, 16, 30),
-            height: 240, // [수정] 높이 확대
+            height: 240, 
            color: Colors.grey[50],
            child: NumberPad(
              blockSize: blockSize,
@ -352,13 +332,11 @@ class _SudokuBattleScreenState extends State<SudokuBattleScreen> {
              selectedNumber: selectedNumberPad,
              onNumberTapped: (num) {
                setState(() {
-                  // [핵심] 칸이 선택된 상태에서 숫자 누르면 -> 입력 후 즉시 포커스 해제
                  if (selectedIndex != null) {
                    _onNumberTapped(num);
-                    selectedIndex = null; // 입력했으므로 선택 해제
-                    selectedNumberPad = null; // 모드 초기화
+                    selectedIndex = null; 
+                    selectedNumberPad = null; 
                  } else {
-                    // 칸 선택 없이 숫자만 누르면 '숫자 우선 모드' 토글
                    selectedNumberPad = (selectedNumberPad == num) ? null : num;
                  }
                });
@ -369,4 +347,14 @@ class _SudokuBattleScreenState extends State<SudokuBattleScreen> {
      ),
    );
  }
-}
+}
+
+// [보조] DTO에 없는 테마 클래스 간단 정의 (SudokuWidgets에서 요구할 수 있음)
+class SudokuTheme {
+  final Color primaryColor;
+  final Color backgroundColor;
+  final SudokuSymbolType symbolType;
+  SudokuTheme({required this.primaryColor, required this.backgroundColor, required this.symbolType});
+  String getSymbol(int val) => val.toString();
+}
+enum SudokuSymbolType { number }
--- a/packages/core/lib/game/survivor_game.dart
+++ b/packages/core/lib/game/survivor_game.dart
@ -0,0 +1,418 @@
+import 'dart:async';
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:playwith_core/playwith_core.dart';
+
+class SurvivorGame extends BaseGame {
+  @override
+  String get id => "survivor";
+  @override
+  String get name => "서바이버";
+  @override
+  String get description => "최후의 생존자가 되세요!";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // 점수 공유 등 처리 (생략 가능)
+  }
+
+  @override
+  Widget buildHostView(BuildContext context) => SurvivorScreen(isHost: true, gameInstance: this);
+  @override
+  Widget buildGuestView(BuildContext context) => SurvivorScreen(isHost: false, gameInstance: this);
+}
+
+class SurvivorScreen extends StatefulWidget {
+  final bool isHost;
+  final SurvivorGame gameInstance;
+
+  const SurvivorScreen({super.key, required this.isHost, required this.gameInstance});
+
+  @override
+  State<SurvivorScreen> createState() => _SurvivorScreenState();
+}
+
+class _SurvivorScreenState extends State<SurvivorScreen> with SingleTickerProviderStateMixin {
+  late Ticker _ticker;
+  
+  // --- 게임 엔티티 ---
+  _Player player = _Player();
+  List<_Enemy> enemies = [];
+  List<_Bullet> bullets = [];
+  List<_Gem> gems = []; // 경험치 보석
+
+  // --- 게임 상태 ---
+  int score = 0; // 킬 수
+  int opponentScore = 0;
+  int level = 1;
+  int exp = 0;
+  int maxExp = 5;
+  
+  double gameTime = 0;
+  bool isGameOver = false;
+  
+  // 조작
+  Offset _joystickDelta = Offset.zero;
+
+  @override
+  void initState() {
+    super.initState();
+    _ticker = createTicker(_gameLoop)..start();
+    NetworkManager().messageStream.listen(_handleMessage);
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+    if (payload['type'] == 'SCORE') {
+      setState(() => opponentScore = payload['score']);
+    }
+  }
+
+  void _gameLoop(Duration elapsed) {
+    if (isGameOver) return;
+    
+    setState(() {
+      gameTime += 0.016; // 약 60fps
+
+      // 1. 플레이어 이동
+      if (_joystickDelta != Offset.zero) {
+        player.x += _joystickDelta.dx * player.speed;
+        player.y += _joystickDelta.dy * player.speed;
+        
+        // 화면 밖 제한 (0.0 ~ 1.0 좌표계)
+        player.x = player.x.clamp(0.0, 1.0);
+        player.y = player.y.clamp(0.0, 1.0);
+      }
+
+      // 2. 적 생성 (시간 지날수록 많이)
+      if (Random().nextDouble() < 0.02 + (level * 0.005)) {
+        _spawnEnemy();
+      }
+
+      // 3. 적 이동 (플레이어 추적)
+      for (var enemy in enemies) {
+        double dx = player.x - enemy.x;
+        double dy = player.y - enemy.y;
+        double dist = sqrt(dx*dx + dy*dy);
+        if (dist > 0) {
+          enemy.x += (dx / dist) * enemy.speed;
+          enemy.y += (dy / dist) * enemy.speed;
+        }
+        
+        // 플레이어 충돌 (피격)
+        if (dist < (player.size + enemy.size) / 2) {
+          _gameOver();
+        }
+      }
+
+      // 4. 자동 공격 (가장 가까운 적)
+      player.cooldown -= 0.016;
+      if (player.cooldown <= 0 && enemies.isNotEmpty) {
+        _Enemy? target = _findNearestEnemy();
+        if (target != null) {
+          _fireBullet(target);
+          player.cooldown = player.maxCooldown; // 공속
+        }
+      }
+
+      // 5. 총알 이동 및 충돌
+      for (int i = bullets.length - 1; i >= 0; i--) {
+        var b = bullets[i];
+        b.x += b.vx;
+        b.y += b.vy;
+        b.life -= 0.016;
+
+        // 화면 밖 or 수명 끝
+        if (b.x < 0 || b.x > 1 || b.y < 0 || b.y > 1 || b.life <= 0) {
+          bullets.removeAt(i);
+          continue;
+        }
+
+        // 적 충돌 체크
+        for (int j = enemies.length - 1; j >= 0; j--) {
+          var e = enemies[j];
+          double dist = sqrt(pow(b.x - e.x, 2) + pow(b.y - e.y, 2));
+          if (dist < (b.size + e.size) / 2) {
+            // 명중
+            e.hp--;
+            bullets.removeAt(i); // 총알 삭제 (관통 없음)
+            if (e.hp <= 0) {
+              enemies.removeAt(j);
+              _dropGem(e.x, e.y);
+              score++;
+              if (score % 10 == 0) NetworkManager().sendMessage({'type': 'SCORE', 'score': score});
+            }
+            break; 
+          }
+        }
+      }
+
+      // 6. 보석 획득 (경험치)
+      for (int i = gems.length - 1; i >= 0; i--) {
+        var g = gems[i];
+        // 자석 효과 (플레이어 근처면 빨려옴)
+        double dx = player.x - g.x;
+        double dy = player.y - g.y;
+        double dist = sqrt(dx*dx + dy*dy);
+        
+        if (dist < 0.15) { // 자석 범위
+          g.x += dx * 0.1;
+          g.y += dy * 0.1;
+        }
+
+        if (dist < player.size) {
+          gems.removeAt(i);
+          exp++;
+          if (exp >= maxExp) {
+            _levelUp();
+          }
+        }
+      }
+    });
+  }
+
+  _Enemy? _findNearestEnemy() {
+    _Enemy? nearest;
+    double minDst = 100.0;
+    for (var e in enemies) {
+      double dst = sqrt(pow(player.x - e.x, 2) + pow(player.y - e.y, 2));
+      if (dst < minDst) {
+        minDst = dst;
+        nearest = e;
+      }
+    }
+    // 사거리 체크 (화면 절반 정도)
+    if (minDst < 0.4) return nearest;
+    return null;
+  }
+
+  void _fireBullet(_Enemy target) {
+    double dx = target.x - player.x;
+    double dy = target.y - player.y;
+    double dist = sqrt(dx*dx + dy*dy);
+    
+    bullets.add(_Bullet(
+      x: player.x, 
+      y: player.y, 
+      vx: (dx/dist) * 0.02, // 총알 속도
+      vy: (dy/dist) * 0.02
+    ));
+    
+    // 멀티샷 (레벨업 시 추가 가능)
+    if (level >= 3) {
+       // 약간 빗나간 총알 추가 등 로직 가능
+    }
+  }
+
+  void _spawnEnemy() {
+    // 화면 가장자리 랜덤 위치
+    double x, y;
+    if (Random().nextBool()) {
+      x = Random().nextBool() ? -0.1 : 1.1;
+      y = Random().nextDouble();
+    } else {
+      x = Random().nextDouble();
+      y = Random().nextBool() ? -0.1 : 1.1;
+    }
+    
+    enemies.add(_Enemy(
+      x: x, y: y, 
+      hp: 1 + (level ~/ 2), // 레벨 비례 체력
+      speed: 0.002 + (level * 0.0005) // 레벨 비례 속도
+    ));
+  }
+
+  void _dropGem(double x, double y) {
+    gems.add(_Gem(x: x, y: y));
+  }
+
+  void _levelUp() {
+    level++;
+    exp = 0;
+    maxExp += 5;
+    player.maxCooldown *= 0.9; // 공속 증가
+    // 이펙트나 알림 추가 가능
+    SoundManager().playSfx(SoundKey.win); // 레벨업 효과음 대용
+  }
+
+  void _gameOver() {
+    isGameOver = true;
+    _ticker.stop();
+    SoundManager().playSfx(SoundKey.wrong);
+    
+    String result = score > opponentScore ? "승리! (상대: $opponentScore)" : "패배... (상대: $opponentScore)";
+    if (score == opponentScore) result = "무승부!";
+
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("생존 실패!"),
+        content: Text("최종 레벨: $level\n처치 수: $score\n$result"),
+        actions: [
+          TextButton(
+            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
+            child: const Text("나가기"),
+          )
+        ],
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _ticker.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: Colors.green[900], // 잔디 느낌
+      body: Stack(
+        children: [
+          // 게임 화면
+          Positioned.fill(
+            child: CustomPaint(
+              painter: SurvivorPainter(player, enemies, bullets, gems),
+            ),
+          ),
+          
+          // UI 오버레이 (점수, 레벨)
+          SafeArea(
+            child: Padding(
+              padding: const EdgeInsets.all(16.0),
+              child: Column(
+                children: [
+                  Row(
+                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                    children: [
+                      Text("KILL: $score", style: const TextStyle(color: Colors.white, fontSize: 20, fontWeight: FontWeight.bold)),
+                      Text("LV: $level", style: const TextStyle(color: Colors.yellowAccent, fontSize: 24, fontWeight: FontWeight.bold)),
+                      Text("RIVAL: $opponentScore", style: const TextStyle(color: Colors.white70, fontSize: 16)),
+                    ],
+                  ),
+                  const SizedBox(height: 5),
+                  // 경험치 바
+                  LinearProgressIndicator(
+                    value: exp / maxExp,
+                    backgroundColor: Colors.black26,
+                    color: Colors.blueAccent,
+                    minHeight: 8,
+                  )
+                ],
+              ),
+            ),
+          ),
+          
+          // 가상 조이스틱 (전체 화면 드래그 인식)
+          Positioned.fill(
+            child: GestureDetector(
+              behavior: HitTestBehavior.translucent,
+              onPanStart: (d) => _updateJoystick(d.localPosition, start: true),
+              onPanUpdate: (d) => _updateJoystick(d.localPosition),
+              onPanEnd: (d) => setState(() => _joystickDelta = Offset.zero),
+              child: Container(color: Colors.transparent),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  // 가상 조이스틱 로직 (화면 어디든 터치해서 움직임)
+  Offset _startTouchPos = Offset.zero;
+  void _updateJoystick(Offset pos, {bool start = false}) {
+    if (start) _startTouchPos = pos;
+    
+    Offset diff = pos - _startTouchPos;
+    double dist = diff.distance;
+    if (dist > 0) {
+      // 최대 거리 제한 (감도 조절)
+      if (dist > 50) diff = diff / dist * 50;
+      setState(() {
+        _joystickDelta = diff / 50.0; // -1.0 ~ 1.0 정규화
+      });
+    }
+  }
+}
+
+// --- 내부 클래스 ---
+class _Player {
+  double x = 0.5, y = 0.5;
+  double size = 0.04;
+  double speed = 0.008;
+  double cooldown = 0;
+  double maxCooldown = 0.5; // 초당 2발
+}
+
+class _Enemy {
+  double x, y;
+  int hp;
+  double size = 0.03;
+  double speed;
+  _Enemy({required this.x, required this.y, this.hp = 1, this.speed = 0.002});
+}
+
+class _Bullet {
+  double x, y, vx, vy;
+  double size = 0.015;
+  double life = 2.0; // 2초 후 사라짐
+  _Bullet({required this.x, required this.y, required this.vx, required this.vy});
+}
+
+class _Gem {
+  double x, y;
+  _Gem({required this.x, required this.y});
+}
+
+// --- 페인터 ---
+class SurvivorPainter extends CustomPainter {
+  final _Player player;
+  final List<_Enemy> enemies;
+  final List<_Bullet> bullets;
+  final List<_Gem> gems;
+
+  SurvivorPainter(this.player, this.enemies, this.bullets, this.gems);
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final w = size.width;
+    final h = size.height;
+    
+    // 좌표 변환
+    Offset toPos(double x, double y) => Offset(x * w, y * h);
+
+    // 보석
+    final gemPaint = Paint()..color = Colors.blueAccent;
+    for (var g in gems) {
+      canvas.drawCircle(toPos(g.x, g.y), w * 0.015, gemPaint);
+    }
+
+    // 적
+    final enemyPaint = Paint()..color = Colors.red;
+    for (var e in enemies) {
+      // 사각형으로 그림
+      Rect rect = Rect.fromCenter(center: toPos(e.x, e.y), width: w * e.size * 2, height: w * e.size * 2);
+      canvas.drawRect(rect, enemyPaint);
+    }
+
+    // 총알
+    final bulletPaint = Paint()..color = Colors.yellow;
+    for (var b in bullets) {
+      canvas.drawCircle(toPos(b.x, b.y), w * b.size, bulletPaint);
+    }
+
+    // 플레이어
+    final playerPaint = Paint()..color = Colors.white;
+    canvas.drawCircle(toPos(player.x, player.y), w * player.size, playerPaint);
+    
+    // 플레이어 테두리 (HP 느낌)
+    final borderPaint = Paint()..color = Colors.black..style = PaintingStyle.stroke..strokeWidth = 2;
+    canvas.drawCircle(toPos(player.x, player.y), w * player.size, borderPaint);
+  }
+
+  @override
+  bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
+}
--- a/packages/core/lib/game/world_tour_game.dart
+++ b/packages/core/lib/game/world_tour_game.dart
@ -0,0 +1,495 @@
+import 'dart:async';
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:playwith_core/playwith_core.dart';
+
+class WorldTourGame extends BaseGame {
+  @override
+  String get id => "world_tour";
+  @override
+  String get name => "월드 투어";
+  @override
+  String get description => "주사위로 떠나는 세계 여행\n건물을 지어 통행료를 높이세요!";
+
+  @override
+  void onMessageReceived(String senderId, Map<String, dynamic> payload) {
+    // UI에서 처리
+  }
+
+  @override
+  Widget buildHostView(BuildContext context) => WorldTourScreen(myTeam: 0, gameInstance: this); // 0: Red
+  @override
+  Widget buildGuestView(BuildContext context) => WorldTourScreen(myTeam: 1, gameInstance: this); // 1: Blue
+}
+
+// 도시 정보
+class City {
+  final String name;
+  final int basePrice; // 땅값
+  final int baseToll;  // 기본 통행료
+  int owner; // -1: 없음, 0: Red, 1: Blue
+  int buildingLevel; // 0: 땅만, 1: 1단계, 2: 2단계, 3: 랜드마크
+
+  City(this.name, this.basePrice, this.baseToll, {this.owner = -1, this.buildingLevel = 0});
+
+  // 현재 통행료 계산 (건물 1개당 50%씩 증가 -> 3단계면 2.5배)
+  int get currentToll => (baseToll * (1 + 0.5 * buildingLevel)).toInt();
+  
+  // 업그레이드 비용 (땅값의 50%)
+  int get upgradeCost => (basePrice * 0.5).toInt();
+}
+
+class WorldTourScreen extends StatefulWidget {
+  final int myTeam; // 0: Red, 1: Blue
+  final WorldTourGame gameInstance;
+
+  const WorldTourScreen({super.key, required this.myTeam, required this.gameInstance});
+
+  @override
+  State<WorldTourScreen> createState() => _WorldTourScreenState();
+}
+
+class _WorldTourScreenState extends State<WorldTourScreen> {
+  // 보드 데이터 (20칸)
+  final List<City> board = [
+    City("출발", 0, 0), // 0
+    City("타이페이", 50, 30), // 1
+    City("베이징", 80, 40), // 2
+    City("마닐라", 100, 50), // 3
+    City("제주도", 150, 80), // 4
+    City("무인도", 0, 0), // 5 
+    City("아테네", 180, 90), // 6
+    City("코펜하겐", 200, 100), // 7
+    City("오타와", 220, 110), // 8
+    City("베를린", 240, 120), // 9
+    City("사회복지", 0, 0), // 10
+    City("상파울루", 300, 150), // 11
+    City("시드니", 320, 160), // 12
+    City("하와이", 350, 180), // 13
+    City("리스본", 400, 200), // 14
+    City("세계여행", 0, 0), // 15
+    City("도쿄", 500, 300), // 16
+    City("파리", 600, 400), // 17
+    City("런던", 700, 500), // 18
+    City("서울", 1000, 800), // 19
+  ];
+
+  List<int> positions = [0, 0]; // 위치
+  List<int> money = [2000, 2000]; // 자금
+  int currentTurn = 0; // 0: Red, 1: Blue
+  
+  bool canRoll = true;
+  String infoMessage = "게임을 시작합니다!";
+  int? lastDice;
+
+  @override
+  void initState() {
+    super.initState();
+    NetworkManager().messageStream.listen(_handleMessage);
+  }
+
+  void _handleMessage(Map<String, dynamic> payload) {
+    if (!mounted) return;
+
+    if (payload['type'] == 'ROLL') {
+      int result = payload['result'];
+      int team = payload['team'];
+      
+      setState(() {
+        lastDice = result;
+        _movePlayer(team, result);
+      });
+    } else if (payload['type'] == 'BUY') {
+      // 땅 구매 or 건물 업그레이드
+      int team = payload['team'];
+      int index = payload['index'];
+      int cost = payload['cost'];
+      bool isUpgrade = payload['isUpgrade'] ?? false;
+      
+      setState(() {
+        money[team] -= cost;
+        board[index].owner = team;
+        if (isUpgrade) {
+          board[index].buildingLevel++;
+          infoMessage = "${board[index].name} 건물 증축! (${board[index].buildingLevel}단계)";
+        } else {
+          infoMessage = "${board[index].name} 구매 완료!";
+        }
+        _nextTurn();
+      });
+    } else if (payload['type'] == 'PAY') {
+      int from = payload['from'];
+      int to = payload['to'];
+      int amount = payload['amount'];
+      
+      setState(() {
+        money[from] -= amount;
+        money[to] += amount;
+        infoMessage = "통행료 $amount 지불!";
+        _checkBankruptcy();
+        _nextTurn();
+      });
+    } else if (payload['type'] == 'PASS') {
+      _nextTurn();
+    } else if (payload['type'] == 'GAME_OVER') {
+      _showGameOverDialog(payload['winner']);
+    }
+  }
+
+  // --- 로직 ---
+
+  void _onRollDice() {
+    if (currentTurn != widget.myTeam || !canRoll) return;
+    
+    int dice1 = Random().nextInt(6) + 1;
+    int dice2 = Random().nextInt(6) + 1;
+    int total = dice1 + dice2;
+
+    NetworkManager().sendMessage({'type': 'ROLL', 'result': total, 'team': widget.myTeam});
+    
+    setState(() {
+      lastDice = total;
+      _movePlayer(widget.myTeam, total);
+    });
+  }
+
+  void _movePlayer(int team, int steps) {
+    canRoll = false;
+    int currentPos = positions[team];
+    int nextPos = (currentPos + steps) % 20;
+    
+    // 한 바퀴 돌았는지 체크 (월급)
+    if (nextPos < currentPos) {
+      money[team] += 300; // 월급
+      infoMessage = "한 바퀴 돌았습니다! (+300)";
+    }
+
+    positions[team] = nextPos;
+    _handleArrival(team, nextPos);
+  }
+
+  void _handleArrival(int team, int index) {
+    City city = board[index];
+    
+    // 1. 특수 지역 (출발, 무인도 등) - 주인 없음
+    if (city.basePrice == 0) {
+      if (team == widget.myTeam) {
+        Future.delayed(const Duration(seconds: 1), () {
+          NetworkManager().sendMessage({'type': 'PASS'});
+          _nextTurn();
+        });
+      }
+      return;
+    }
+
+    // 2. 빈 땅 -> 구매 가능
+    if (city.owner == -1) {
+      if (team == widget.myTeam) {
+        if (money[team] >= city.basePrice) {
+          _showBuyDialog(index, isUpgrade: false);
+        } else {
+          NetworkManager().sendMessage({'type': 'PASS'});
+          _nextTurn();
+        }
+      }
+    }
+    // 3. 내 땅 -> 업그레이드 가능 (3단계 미만일 때)
+    else if (city.owner == team) {
+      if (team == widget.myTeam) {
+        if (city.buildingLevel < 3 && money[team] >= city.upgradeCost) {
+          _showBuyDialog(index, isUpgrade: true);
+        } else {
+          // 이미 최고 레벨이거나 돈 부족
+          NetworkManager().sendMessage({'type': 'PASS'});
+          _nextTurn();
+        }
+      }
+    }
+    // 4. 남의 땅 -> 통행료
+    else {
+      if (team == widget.myTeam) {
+        int toll = city.currentToll;
+        NetworkManager().sendMessage({
+          'type': 'PAY',
+          'from': team,
+          'to': city.owner,
+          'amount': toll
+        });
+        setState(() {
+          money[team] -= toll;
+          money[city.owner] += toll;
+          infoMessage = "${city.name} 도착! 통행료 $toll 지불";
+        });
+        _checkBankruptcy();
+        _nextTurn();
+      }
+    }
+  }
+
+  void _showBuyDialog(int index, {required bool isUpgrade}) {
+    City city = board[index];
+    int cost = isUpgrade ? city.upgradeCost : city.basePrice;
+    String title = isUpgrade ? "${city.name} 증축?" : "${city.name} 구매?";
+    String content = isUpgrade 
+        ? "현재 단계: ${city.buildingLevel} -> ${city.buildingLevel + 1}\n비용: $cost"
+        : "가격: $cost\n기본 통행료: ${city.baseToll}";
+
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: Text(title),
+        content: Text("$content\n보유 자금: ${money[widget.myTeam]}"),
+        actions: [
+          TextButton(
+            onPressed: () {
+              Navigator.pop(context);
+              NetworkManager().sendMessage({'type': 'PASS'});
+              _nextTurn();
+            },
+            child: const Text("패스"),
+          ),
+          ElevatedButton(
+            onPressed: () {
+              Navigator.pop(context);
+              NetworkManager().sendMessage({
+                'type': 'BUY',
+                'team': widget.myTeam,
+                'index': index,
+                'cost': cost,
+                'isUpgrade': isUpgrade
+              });
+              setState(() {
+                money[widget.myTeam] -= cost;
+                board[index].owner = widget.myTeam;
+                if (isUpgrade) {
+                  board[index].buildingLevel++;
+                  infoMessage = "건물 업그레이드 완료!";
+                } else {
+                  infoMessage = "구매 완료!";
+                }
+                _nextTurn();
+              });
+            },
+            child: Text(isUpgrade ? "증축" : "구매"),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void _nextTurn() {
+    setState(() {
+      currentTurn = 1 - currentTurn;
+      canRoll = true;
+      lastDice = null;
+    });
+  }
+
+  void _checkBankruptcy() {
+    if (money[0] < 0) _finishGame(1); // Blue Win
+    else if (money[1] < 0) _finishGame(0); // Red Win
+  }
+
+  void _finishGame(int winner) {
+    NetworkManager().sendMessage({'type': 'GAME_OVER', 'winner': winner});
+    _showGameOverDialog(winner);
+  }
+
+  void _showGameOverDialog(int winner) {
+    String msg = (winner == widget.myTeam) ? "승리! 🎉" : "파산했습니다... 💸";
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => AlertDialog(
+        title: const Text("게임 종료"),
+        content: Text(msg),
+        actions: [
+          TextButton(
+            onPressed: () { Navigator.pop(context); Navigator.pop(context); },
+            child: const Text("나가기"),
+          )
+        ],
+      ),
+    );
+  }
+
+  // --- UI ---
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text("월드 투어")),
+      body: Column(
+        children: [
+          // 상태창
+          Container(
+            padding: const EdgeInsets.all(16),
+            color: Colors.blueGrey[50],
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceAround,
+              children: [
+                _buildPlayerInfo(0, Colors.redAccent, "RED"),
+                const Text("VS", style: TextStyle(fontWeight: FontWeight.bold)),
+                _buildPlayerInfo(1, Colors.blueAccent, "BLUE"),
+              ],
+            ),
+          ),
+          
+          if (lastDice != null)
+            Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: Text("주사위: $lastDice", style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
+            ),
+          
+          // 보드
+          Expanded(
+            child: LayoutBuilder(
+              builder: (context, constraints) {
+                return Padding(
+                  padding: const EdgeInsets.all(10.0),
+                  child: CustomPaint(
+                    size: Size(constraints.maxWidth, constraints.maxWidth),
+                    painter: BoardPainter(board, positions),
+                  ),
+                );
+              },
+            ),
+          ),
+
+          // 컨트롤
+          Padding(
+            padding: const EdgeInsets.all(20),
+            child: SizedBox(
+              width: double.infinity,
+              height: 60,
+              child: ElevatedButton(
+                onPressed: (currentTurn == widget.myTeam && canRoll) ? _onRollDice : null,
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: widget.myTeam == 0 ? Colors.redAccent : Colors.blueAccent,
+                  foregroundColor: Colors.white,
+                ),
+                child: Text((currentTurn == widget.myTeam) ? "주사위 굴리기" : "상대방 차례"),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildPlayerInfo(int team, Color color, String name) {
+    bool isTurn = currentTurn == team;
+    return Container(
+      padding: const EdgeInsets.all(12),
+      decoration: BoxDecoration(
+        color: isTurn ? color.withOpacity(0.2) : Colors.transparent,
+        border: Border.all(color: color, width: 2),
+        borderRadius: BorderRadius.circular(10),
+      ),
+      child: Column(
+        children: [
+          Text(name, style: TextStyle(fontWeight: FontWeight.bold, color: color)),
+          Text("${money[team]}원", style: const TextStyle(fontSize: 18)),
+        ],
+      ),
+    );
+  }
+}
+
+// 보드 그리기 (ㅁ자 형태 + 건물 표시)
+class BoardPainter extends CustomPainter {
+  final List<City> board;
+  final List<int> positions;
+
+  BoardPainter(this.board, this.positions);
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final paint = Paint()..style = PaintingStyle.stroke..strokeWidth = 1.0;
+    final fillPaint = Paint()..style = PaintingStyle.fill;
+    
+    double cellSize = size.width / 6;
+    
+    // 칸 그리기
+    for (int i = 0; i < 20; i++) {
+      Rect rect = _getRect(i, cellSize, size.width);
+      
+      // 땅 주인 색칠
+      if (board[i].owner != -1) {
+        fillPaint.color = board[i].owner == 0 ? Colors.redAccent.withOpacity(0.3) : Colors.blueAccent.withOpacity(0.3);
+        canvas.drawRect(rect, fillPaint);
+      } else if (i % 5 == 0) {
+        fillPaint.color = Colors.grey.withOpacity(0.2);
+        canvas.drawRect(rect, fillPaint);
+      }
+
+      paint.color = Colors.black;
+      canvas.drawRect(rect, paint);
+      
+      // 텍스트 (도시 이름)
+      _drawText(canvas, board[i].name, rect.center, i);
+
+      // [추가] 건물 표시 (별)
+      if (board[i].owner != -1 && board[i].buildingLevel > 0) {
+        _drawBuilding(canvas, rect, board[i].buildingLevel, board[i].owner == 0 ? Colors.red : Colors.blue);
+      }
+    }
+
+    // 말 그리기
+    _drawToken(canvas, _getRect(positions[0], cellSize, size.width).center, Colors.red, -5);
+    _drawToken(canvas, _getRect(positions[1], cellSize, size.width).center, Colors.blue, 5);
+  }
+
+  void _drawBuilding(Canvas canvas, Rect rect, int level, Color color) {
+    // 상단에 작은 원(또는 별)으로 건물 단계 표시
+    final paint = Paint()..color = color..style = PaintingStyle.fill;
+    double yPos = rect.top + 8;
+    double startX = rect.center.dx - ((level - 1) * 6); // 중앙 정렬
+
+    for (int i = 0; i < level; i++) {
+      canvas.drawCircle(Offset(startX + (i * 12), yPos), 3, paint);
+    }
+  }
+
+  void _drawToken(Canvas canvas, Offset center, Color color, double offset) {
+    final paint = Paint()..color = color..style = PaintingStyle.fill;
+    canvas.drawCircle(center + Offset(offset, offset), 8, paint);
+    paint.style = PaintingStyle.stroke;
+    paint.color = Colors.white;
+    paint.strokeWidth = 2;
+    canvas.drawCircle(center + Offset(offset, offset), 8, paint);
+  }
+
+  void _drawText(Canvas canvas, String text, Offset center, int index) {
+    TextSpan span = TextSpan(style: const TextStyle(color: Colors.black, fontSize: 10, fontWeight: FontWeight.bold), text: text);
+    TextPainter tp = TextPainter(text: span, textAlign: TextAlign.center, textDirection: TextDirection.ltr);
+    tp.layout();
+    tp.paint(canvas, center - Offset(tp.width / 2, tp.height / 2 - 5)); // 텍스트 약간 위로 (가격 등 표시 공간 확보 위해)
+  }
+
+  Rect _getRect(int index, double size, double totalSize) {
+    // 좌표 계산 로직 (기존 동일)
+    int side = index ~/ 5; 
+    double x = 0, y = 0;
+    
+    if (index >= 0 && index <= 5) {
+      x = totalSize - (index + 1) * size;
+      y = totalSize - size;
+    } else if (index > 5 && index <= 10) {
+      x = 0;
+      y = totalSize - (index - 5 + 1) * size;
+    } else if (index > 10 && index <= 15) {
+      x = (index - 10) * size;
+      y = 0;
+    } else {
+      x = totalSize - size;
+      y = (index - 15) * size;
+    }
+    
+    return Rect.fromLTWH(x, y, size, size);
+  }
+
+  @override
+  bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
+}
--- a/packages/core/lib/manager/media_manager.dart
+++ b/packages/core/lib/manager/media_manager.dart
@ -40,6 +40,7 @@ class MediaManager {
  MediaManager._internal();

  EphemeralDatabase? _db;
+  EphemeralDatabase? get db => _db;
  String? _currentRoomId;

  final Map<String, _TransferState> _activeTransfers = {};
--- a/packages/core/lib/model/game_info.dart
+++ b/packages/core/lib/model/game_info.dart
@ -85,6 +85,65 @@ class AppGames {
      icon: Icons.touch_app,
      isSinglePlayerSupported: false, 
    ),
+    GameInfo(
+      id: 'world_tour',
+      name: '월드 투어',
+      description: '주사위를 굴려 세계 여행!\n땅을 사고 통행료를 받으세요.',
+      icon: Icons.public, 
+      isSinglePlayerSupported: false, 
+    ),
+    // [추가] 오셀로
+    GameInfo(
+      id: 'othello',
+      name: '오셀로',
+      description: '돌을 뒤집어라!\n마지막에 웃는 자가 승리',
+      icon: Icons.circle, // 흑백 원 아이콘
+      isSinglePlayerSupported: false, 
+    ),
+    // [추가] 알카노이드
+    GameInfo(
+      id: 'arkanoid',
+      name: '벽돌 깨기',
+      description: '추억의 아케이드!\n누가 더 높은 점수를 낼까?',
+      icon: Icons.view_module,
+      isSinglePlayerSupported: true, 
+    ),// [추가] 매스 런 (게이트 런)
+    GameInfo(
+      id: 'math_run',
+      name: '매스 런',
+      description: '좌우로 움직여 숫자를 늘리세요!\n높은 점수가 승리합니다.',
+      icon: Icons.calculate,
+      isSinglePlayerSupported: true, 
+    ),
+    // [추가] 점프 배틀 (횡스크롤)
+    GameInfo(
+      id: 'jump_battle',
+      name: '점프 배틀',
+      description: '장애물을 피해 끝까지 달리세요!\n타이밍 싸움!',
+      icon: Icons.directions_run,
+      isSinglePlayerSupported: true, 
+    ),
+    GameInfo(
+      id: 'iam_ground',
+      name: '아이엠그라운드',
+      description: '리듬을 타며 이름을 공격하세요!\n박자를 놓치면 탈락!',
+      icon: Icons.music_note, // 음표 아이콘
+      isSinglePlayerSupported: false, // 최소 2인 이상
+    ),
+    GameInfo(
+      id: 'survivor',
+      name: '서바이버',
+      description: '몰려오는 몬스터를 막아내세요!\n이동만 하면 자동으로 공격합니다.',
+      icon: Icons.bug_report,
+      isSinglePlayerSupported: true, 
+    ),
+    GameInfo(
+      id: 'sequence_memory',
+      name: '기억의 신',
+      description: '반짝이는 순서를 기억하세요!\n라운드가 갈수록 종류가 다양해집니다.',
+      icon: Icons.apps,
+      isSinglePlayerSupported: true, 
+    ),
  ];

  static GameInfo getById(String id) {
--- a/packages/core/lib/model/play_packet.dart
+++ b/packages/core/lib/model/play_packet.dart
@ -1,44 +1,41 @@
 import 'dart:convert';

-/// 패킷의 종류 (라우팅 기준)
 enum PacketType {
-  system, // 시스템 (레디, 시작, 종료, 핸드셰이크 등)
-  chat,   // 채팅 (GlobalChatManager로 전달)
-  game,   // 게임 로직 (GameController로 전달)
-  media,
-  unknown
+  system, chat, game, media, unknown
 }

 class PlayPacket {
  final PacketType type;
-  final String senderId; // 보낸 사람 ID
-  final dynamic payload; // 실제 데이터 (Map, List, String 등)
+  final String senderId;
+  final dynamic payload;
  final int timestamp;
+  final int? seq; // [추가] 패킷 순번

  PlayPacket({
    required this.type,
    required this.senderId,
    required this.payload,
    required this.timestamp,
+    this.seq, // [추가]
  });

-  // JSON -> 객체
  factory PlayPacket.fromJson(Map<String, dynamic> json) {
    return PlayPacket(
      type: _parseType(json['type']),
      senderId: json['senderId'] ?? 'unknown',
      payload: json['payload'],
      timestamp: json['timestamp'] ?? DateTime.now().millisecondsSinceEpoch,
+      seq: json['seq'], // [추가]
    );
  }

-  // 객체 -> JSON
  Map<String, dynamic> toJson() {
    return {
-      'type': type.name, // enum을 문자열로 ('chat', 'game'...)
+      'type': type.name,
      'senderId': senderId,
      'payload': payload,
      'timestamp': timestamp,
+      if (seq != null) 'seq': seq, // [추가]
    };
  }

@ -46,7 +43,6 @@ class PlayPacket {
    for (var t in PacketType.values) {
      if (t.name == typeStr) return t;
    }
-    // 호환성: 기존 레거시 메시지(PING, ANSWER_SUBMIT 등)는 'unknown'이나 별도 처리
    return PacketType.unknown;
  }
 }
--- a/packages/core/lib/model/spider_game_dto.dart
+++ b/packages/core/lib/model/spider_game_dto.dart
@ -0,0 +1,28 @@
+class SpiderGameDto {
+  final int puzzleId;
+  final int difficulty; // 1, 2, 4 (Suits)
+  final List<int> cards; // 0~103 (카드 덱)
+
+  SpiderGameDto({
+    required this.puzzleId,
+    required this.difficulty,
+    required this.cards,
+  });
+
+  factory SpiderGameDto.fromJson(Map<String, dynamic> json) {
+    return SpiderGameDto(
+      puzzleId: json['puzzleId'] ?? 0,
+      difficulty: json['difficulty'] ?? 1,
+      // 카드 배열 파싱
+      cards: (json['cards'] as List<dynamic>?)?.map((e) => e as int).toList() ?? [],
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'puzzleId': puzzleId,
+      'difficulty': difficulty,
+      'cards': cards,
+    };
+  }
+}
--- a/packages/core/lib/network/network_manager.dart
+++ b/packages/core/lib/network/network_manager.dart
@ -12,7 +12,7 @@ import '../model/user_info.dart';
 import '../model/play_packet.dart';
 import '../manager/global_chat_manager.dart';
 import '../manager/media_manager.dart';
-import '../manager/notification_manager.dart';
+import '../database/ephemeral_database.dart';

 enum NetworkRole { none, host, guest }

@ -24,17 +24,13 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    WidgetsBinding.instance.addObserver(this);
  }

-  // ------------------------------------------------------------------------
  // 상수 설정
-  // ------------------------------------------------------------------------
  static const String PACKET_DELIMITER = "|||EOP|||";
  static const int HEARTBEAT_INTERVAL_SEC = 3;
  static const int TIMEOUT_SEC = 10;
  static const int RECONNECT_WAIT_SEC = 5;

-  // ------------------------------------------------------------------------
  // 상태 변수
-  // ------------------------------------------------------------------------
  late UserInfo me;
  NetworkRole role = NetworkRole.none;

@ -44,14 +40,15 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
  ServerSocket? _serverSocket;
  Socket? _clientSocket;
  
-  final Map<Socket, UserInfo?> _connectedGuests = {};
-  final List<UserInfo> guestList = [];
+  final Map<Socket, UserInfo?> _connectedGuests = {}; 
  final Map<Socket, String> _packetBuffers = {};
-
+  
  BonsoirService? _bonsoirService;
  BonsoirBroadcast? _bonsoirBroadcast;
  BonsoirDiscovery? _bonsoirDiscovery;

+  final List<UserInfo> guestList = [];
+
  final _messageController = StreamController<Map<String, dynamic>>.broadcast();
  Stream<Map<String, dynamic>> get messageStream => _messageController.stream;

@ -63,9 +60,13 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
  DateTime? _lastPongTime;
  bool _isReconnecting = false;

-  // [추가] 현재 선택된 게임 ID 및 설정
  String selectedGameId = 'quiz_mix';
-  Map<String, dynamic> selectedGameConfig = {}; // 난이도 등 저장
+  Map<String, dynamic> selectedGameConfig = {};
+
+  int _sendSeq = 0;
+  int _recvSeq = 0;
+  
+  EphemeralDatabase? get _database => MediaManager().db;

  // ------------------------------------------------------------------------
  // 초기화
@ -98,82 +99,24 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
  }

  // ------------------------------------------------------------------------
-  // 레디 시스템
-  // ------------------------------------------------------------------------
-  
-  // [수정] 게임 선택 함수 (Config 추가)
-  void selectGame(String gameId, {Map<String, dynamic>? config}) {
-    selectedGameId = gameId;
-    selectedGameConfig = config ?? {};
-    notifyListeners();
-  }
-
-  void toggleReady() {
-    me = me.copyWith(isReady: !me.isReady);
-    notifyListeners();
-
-    final payload = {
-      'type': 'TOGGLE_READY',
-      'userId': me.id,
-      'isReady': me.isReady,
-    };
-    sendMessage(payload);
-
-    if (role == NetworkRole.host) {
-      _checkAllReadyAndStart();
-    }
-  }
-
-  void _checkAllReadyAndStart() {
-    if (guestList.isEmpty) return;
-    if (!me.isReady) return;
-
-    bool allGuestsReady = guestList.every((u) => u.isReady);
-
-    if (allGuestsReady) {
-      _log("🚀 전원 준비 완료! 3초 후 게임 시작...");
-      Future.delayed(const Duration(seconds: 1), () {
-        // [수정] 게임 시작 패킷에 Config 포함
-        final startPayload = {
-          'type': 'GAME_START', 
-          'gameId': selectedGameId,
-          'config': selectedGameConfig
-        }; 
-        sendMessage(startPayload);
-        _messageController.add(startPayload);
-        _resetAllReadyState();
-      });
-    }
-  }
-
-  void _resetAllReadyState() {
-    me = me.copyWith(isReady: false);
-    for (int i = 0; i < guestList.length; i++) {
-      guestList[i] = guestList[i].copyWith(isReady: false);
-    }
-    notifyListeners();
-  }
-
-  // ------------------------------------------------------------------------
-  // Host Logic
+  // [Socket] 호스팅 로직 (WiFi/Hotspot)
  // ------------------------------------------------------------------------
  Future<void> startHosting(String roomName) async {
-    stopNetwork(force: true);
+    await stopNetwork(force: true);
    role = NetworkRole.host;
+    _sendSeq = 0; _recvSeq = 0;
    
    try {
      _serverSocket = await ServerSocket.bind(InternetAddress.anyIPv4, 0);
      int port = _serverSocket!.port;
      this.hostPort = port;
-
      String? myIp = await _getWifiIp();
      this.hostIp = myIp ?? '127.0.0.1';
      _log("✅ 방 생성: $hostIp : $port");
-
+      
      _serverSocket!.listen((Socket client) {
        _handleNewGuest(client);
      });
-
      _bonsoirService = BonsoirService(
        name: '$roomName#${me.id}',
        type: '_playwith._tcp',
@ -182,11 +125,9 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
      );
      _bonsoirBroadcast = BonsoirBroadcast(service: _bonsoirService!);
      await _bonsoirBroadcast!.start();
-      
      await MediaManager().initialize(roomName);
      _startHeartbeat();
      notifyListeners();
-
    } catch (e) {
      _log("❌ 방 생성 실패: $e");
      stopNetwork(force: true);
@ -199,8 +140,16 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    _packetBuffers[client] = ""; 
    
    final myHandshake = {'type': 'HANDSHAKE', 'payload': me.toJson()};
-    final jsonString = jsonEncode(myHandshake);
-    client.add(utf8.encode('$jsonString$PACKET_DELIMITER'));
+    client.add(utf8.encode('${jsonEncode(myHandshake)}$PACKET_DELIMITER'));
+    
+    Future.delayed(const Duration(milliseconds: 500), () {
+      final gameSync = {
+        'type': 'GAME_CHANGED',
+        'gameId': selectedGameId,
+        'config': selectedGameConfig
+      };
+      client.add(utf8.encode('${jsonEncode(gameSync)}$PACKET_DELIMITER'));
+    });

    client.listen(
      (Uint8List data) => _onDataReceived(client, data),
@ -221,9 +170,7 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    notifyListeners();
  }

-  // ------------------------------------------------------------------------
-  // Guest Logic
-  // ------------------------------------------------------------------------
+  // [Socket] 게스트 로직
  Stream<List<BonsoirService>> discoverRooms() {
    final controller = StreamController<List<BonsoirService>>();
    final List<BonsoirService> foundServices = [];
@ -233,7 +180,6 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
      try {
        _bonsoirDiscovery = BonsoirDiscovery(type: '_playwith._tcp');
        await _bonsoirDiscovery!.start();
-        
        if (_bonsoirDiscovery?.eventStream != null) {
          _bonsoirDiscovery!.eventStream!.listen((dynamic event) {
            final String type = event.type.toString();
@ -256,60 +202,30 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    return controller.stream;
  }

-  // [수정] 싱글 모드 시작 시 Config 추가
-  Future<void> startSoloMode(String gameId, {Map<String, dynamic>? config}) async {
-    stopNetwork(force: true); 
-    
-    role = NetworkRole.host;
-    hostIp = "Solo Mode";
-    hostPort = 0;
-    selectedGameId = gameId; 
-    selectedGameConfig = config ?? {}; // Config 저장
-
-    await MediaManager().initialize("solo_session");
-
-    _log("👤 싱글 플레이 모드 시작: $gameId");
-    notifyListeners();
-    
-    // 바로 시작 신호
-    Future.delayed(const Duration(milliseconds: 100), () {
-       _messageController.add({
-         'type': 'GAME_START', 
-         'gameId': gameId,
-         'config': selectedGameConfig
-       });
-    });
-  }
-  
-
  Future<void> joinRoom(String ip, int port) async {
-    if (role != NetworkRole.guest) stopNetwork(force: true);
+    if (role != NetworkRole.guest) await stopNetwork(force: true);
    role = NetworkRole.guest;
    hostIp = ip;
    hostPort = port;
+    _sendSeq = 0; _recvSeq = 0;

    try {
      _log("🚀 접속 시도: $ip:$port");
      _clientSocket = await Socket.connect(ip, port, timeout: const Duration(seconds: 5));
      _log("✅ 접속 성공!");
-      
      _packetBuffers[_clientSocket!] = "";
-
-      sendMessage({'type': 'HANDSHAKE', 'payload': me.toJson()});
+      
+      final myHandshake = {'type': 'HANDSHAKE', 'payload': me.toJson()};
+      _clientSocket!.add(utf8.encode('${jsonEncode(myHandshake)}$PACKET_DELIMITER'));
      
      await MediaManager().initialize("guest_${ip.replaceAll('.', '_')}");
-
-      _lastPongTime = DateTime.now();
      _startHeartbeat();
-      _cancelDisconnectTimer(); 
-
      _clientSocket!.listen(
        (Uint8List data) => _onDataReceived(_clientSocket!, data),
-        onError: (e) => _handleConnectionLost(e),
-        onDone: () => _handleConnectionLost("Socket Closed"),
+        onError: (e) => stopNetwork(force: true),
+        onDone: () => stopNetwork(force: true),
      );
      notifyListeners();
-
    } catch (e) {
      _log("❌ 접속 실패: $e");
      if (!_isReconnecting) stopNetwork(force: true);
@ -317,6 +233,25 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    }
  }

+  // 싱글 모드
+  Future<void> startSoloMode(String gameId, {Map<String, dynamic>? config}) async {
+    await stopNetwork(force: true); 
+    role = NetworkRole.host;
+    hostIp = "Solo Mode";
+    hostPort = 0;
+    selectedGameId = gameId; 
+    selectedGameConfig = config ?? {}; 
+    _sendSeq = 0; _recvSeq = 0;
+    
+    await MediaManager().initialize("solo_session");
+    _log("👤 싱글 플레이 모드: $gameId");
+    notifyListeners();
+    
+    Future.delayed(const Duration(milliseconds: 100), () {
+       _messageController.add({'type': 'GAME_START', 'gameId': gameId, 'config': selectedGameConfig});
+    });
+  }
+
  // ------------------------------------------------------------------------
  // 데이터 송수신
  // ------------------------------------------------------------------------
@ -327,15 +262,20 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
  void sendMessage(Map<String, dynamic> messageMap) {
     if (role == NetworkRole.guest && _clientSocket == null) return;

+     final String type = messageMap['type'] ?? '';
+     bool isSystem = ['PING', 'PONG', 'HANDSHAKE', 'REQ_RESEND', 'RESEND_DATA'].contains(type);
+
+     if (!isSystem) {
+       _sendSeq++;
+       messageMap['seq'] = _sendSeq;
+       if (_database != null) _database!.logPacket(_sendSeq, jsonEncode(messageMap));
+     }
+
     final jsonString = jsonEncode(messageMap);
-     if (messageMap['type'] != 'PING' && messageMap['type'] != 'PONG') {
-       if (messageMap['type'] == 'chat') {
-          _log("📤 전송: [CHAT]");
-       } else if (messageMap['type'] == 'media') {
-          _log("📤 전송: [MEDIA]");
-       } else {
-          _log("📤 전송: $jsonString");
-       }
+     if (!isSystem) {
+        if (type == 'chat') _log("📤 전송(#$_sendSeq): [CHAT]");
+        else if (type == 'media') _log("📤 전송(#$_sendSeq): [MEDIA]");
+        else _log("📤 전송(#$_sendSeq): $jsonString");
     }
     
     final fullMessage = '$jsonString$PACKET_DELIMITER';
@ -354,12 +294,10 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    try {
      String buffer = _packetBuffers[socket] ?? "";
      buffer += utf8.decode(data, allowMalformed: true);
-
      while (buffer.contains(PACKET_DELIMITER)) {
        final int delimiterIndex = buffer.indexOf(PACKET_DELIMITER);
        final String msg = buffer.substring(0, delimiterIndex);
        buffer = buffer.substring(delimiterIndex + PACKET_DELIMITER.length);
-        
        if (msg.trim().isNotEmpty) _processMessage(socket, msg);
      }
      _packetBuffers[socket] = buffer;
@ -368,35 +306,63 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    }
  }

-  void _processMessage(Socket socket, String msg) {
+  void _processMessage(Socket? socket, String msg) {
    try {
      final Map<String, dynamic> jsonMap = jsonDecode(msg);
+      final String type = jsonMap['type'] ?? '';

-      if (jsonMap['type'] == 'PING') {
+      if (type == 'PING') {
        sendMessage({'type': 'PONG'});
        _lastPongTime = DateTime.now();
        return;
      }
-      if (jsonMap['type'] == 'PONG') {
+      if (type == 'PONG') {
        _lastPongTime = DateTime.now();
        return;
      }
-      
-      if (jsonMap['type'] == 'HANDSHAKE') {
+      if (type == 'HANDSHAKE') {
        final guestInfo = UserInfo.fromJson(jsonMap['payload']);
-        
-        if (role == NetworkRole.host) {
+        if (role == NetworkRole.host && socket != null) {
          _connectedGuests[socket] = guestInfo;
        }
-        
        guestList.removeWhere((u) => u.id == guestInfo.id);
        guestList.add(guestInfo);
        notifyListeners();
-        _messageController.add(jsonMap);
        return;
      }

-      if (jsonMap['type'] == 'TOGGLE_READY') {
+      if (type == 'GAME_CHANGED') {
+        if (jsonMap['gameId'] != null) {
+          selectedGameId = jsonMap['gameId'];
+          selectedGameConfig = jsonMap['config'] ?? {};
+          notifyListeners();
+        }
+        return;
+      }
+
+      if (type == 'REQ_RESEND') {
+        _handleResendRequest(jsonMap['from'], jsonMap['to']);
+        return;
+      }
+      if (type == 'RESEND_DATA') {
+        _processMessage(socket, jsonMap['data']);
+        return;
+      }
+
+      if (jsonMap.containsKey('seq')) {
+        int seq = jsonMap['seq'];
+        if (seq > _recvSeq + 1) {
+          _log("⚠️ 패킷 유실 감지! (기대: ${_recvSeq + 1}, 수신: $seq)");
+          sendMessage({
+            'type': 'REQ_RESEND',
+            'from': _recvSeq + 1,
+            'to': seq - 1
+          });
+        }
+        if (seq > _recvSeq) _recvSeq = seq;
+      }
+
+      if (type == 'TOGGLE_READY') {
        final String userId = jsonMap['userId'];
        final bool isReady = jsonMap['isReady'];
        final index = guestList.indexWhere((u) => u.id == userId);
@ -412,14 +378,9 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
        return;
      }
      
-      if (jsonMap['type'] == 'GAME_START') {
-          if (jsonMap['gameId'] != null) {
-            selectedGameId = jsonMap['gameId'];
-          }
-          // [추가] Config 동기화
-          if (jsonMap['config'] != null) {
-            selectedGameConfig = jsonMap['config'];
-          }
+      if (type == 'GAME_START') {
+          if (jsonMap['gameId'] != null) selectedGameId = jsonMap['gameId'];
+          if (jsonMap['config'] != null) selectedGameConfig = jsonMap['config'];
          _resetAllReadyState();
          _messageController.add(jsonMap);
          return;
@ -444,6 +405,22 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    }
  }

+  Future<void> _handleResendRequest(int fromSeq, int toSeq) async {
+    if (_database == null) return;
+    final packets = await _database!.getPacketsInRange(fromSeq, toSeq);
+    for (var p in packets) {
+      final resendPacket = {'type': 'RESEND_DATA', 'data': p.payload};
+      final jsonString = jsonEncode(resendPacket);
+      final data = utf8.encode('$jsonString$PACKET_DELIMITER');
+      
+      if (role == NetworkRole.host) {
+        for (var s in _connectedGuests.keys) s.add(data);
+      } else {
+        _clientSocket?.add(data);
+      }
+    }
+  }
+
  void _handleConnectionLost(dynamic reason) {
    if (role != NetworkRole.guest) return;
    _clientSocket?.destroy();
@ -502,24 +479,88 @@ class NetworkManager extends ChangeNotifier with WidgetsBindingObserver {
    return null;
  }

-  void stopNetwork({bool force = false}) {
+  Future<void> stopNetwork({bool force = false}) async {
    if (!force && _disconnectWaitTimer != null) return;
-    MediaManager().cleanup();
-    _heartbeatTimer?.cancel();
-    _disconnectWaitTimer?.cancel();
-    _disconnectWaitTimer = null;
-    _bonsoirBroadcast?.stop();
-    _bonsoirDiscovery?.stop();
+    
    _serverSocket?.close();
    _clientSocket?.close();
    for (var s in _connectedGuests.keys) s.close();
    _connectedGuests.clear();
+    
+    _bonsoirBroadcast?.stop();
+    _bonsoirDiscovery?.stop();
+    
+    MediaManager().cleanup();
+    _heartbeatTimer?.cancel();
+    _disconnectWaitTimer?.cancel();
+    _disconnectWaitTimer = null;
    _packetBuffers.clear();
    guestList.clear();
    role = NetworkRole.none;
    _serverSocket = null;
    _clientSocket = null;
-    if (force) { hostIp = null; hostPort = null; }
+    
+    if (force) { 
+      hostIp = null; 
+      hostPort = null; 
+    }
+    notifyListeners();
+  }
+  
+  // ------------------------------------------------------------------------
+  // 게임 관리
+  // ------------------------------------------------------------------------
+  void selectGame(String gameId, {Map<String, dynamic>? config}) {
+    selectedGameId = gameId;
+    selectedGameConfig = config ?? {};
+    notifyListeners();
+
+    if (role == NetworkRole.host) {
+      sendMessage({
+        'type': 'GAME_CHANGED',
+        'gameId': gameId,
+        'config': selectedGameConfig
+      });
+    }
+  }
+
+  void toggleReady() {
+    me = me.copyWith(isReady: !me.isReady);
+    notifyListeners();
+    sendMessage({
+      'type': 'TOGGLE_READY',
+      'userId': me.id,
+      'isReady': me.isReady,
+    });
+    if (role == NetworkRole.host) _checkAllReadyAndStart();
+  }
+
+  void _checkAllReadyAndStart() {
+    if (guestList.isEmpty && role != NetworkRole.host) return; 
+    if (!me.isReady) return;
+
+    bool allGuestsReady = guestList.every((u) => u.isReady);
+
+    if (allGuestsReady) {
+      _log("🚀 전원 준비 완료! 3초 후 게임 시작...");
+      Future.delayed(const Duration(seconds: 1), () {
+        final startPayload = {
+          'type': 'GAME_START',
+          'gameId': selectedGameId,
+          'config': selectedGameConfig
+        };
+        sendMessage(startPayload);
+        _messageController.add(startPayload);
+        _resetAllReadyState();
+      });
+    }
+  }
+
+  void _resetAllReadyState() {
+    me = me.copyWith(isReady: false);
+    for (int i = 0; i < guestList.length; i++) {
+      guestList[i] = guestList[i].copyWith(isReady: false);
+    }
    notifyListeners();
  }
 }
--- a/packages/core/lib/playwith_core.dart
+++ b/packages/core/lib/playwith_core.dart
@ -28,4 +28,12 @@ export 'game/yutnori_game.dart';

 export 'game/memory_game.dart';
 export 'game/tap_battle_game.dart';
-export 'game/balance_game.dart';
+export 'game/balance_game.dart';
+export 'game/world_tour_game.dart';
+export 'game/othello_game.dart';
+export 'game/arkanoid_game.dart';
+export 'game/math_run_game.dart';
+export 'game/jump_game.dart';
+export 'game/iam_ground_game.dart';
+export 'game/survivor_game.dart';
+export 'game/sequence_memory_game.dart';
--- a/packages/core/pubspec.yaml
+++ b/packages/core/pubspec.yaml
@ -27,6 +27,10 @@ dependencies:
  flutter_local_notifications: ^17.0.0
  google_mobile_ads: ^5.0.0
  audioplayers: ^6.0.0  # 여기로 이동
+  wifi_iot: ^0.3.19  # 와이파이 연결 및 정보 확인용
+  network_info_plus: ^5.0.1 # 게이트웨이(방장 IP) 확인용
+  nearby_connections: ^4.0.0
+  device_info_plus: ^10.1.0  # [추가] 기기 정보 확인용
  
 dev_dependencies:
  drift_dev: ^2.13.0