diff --git a/apps/client/src/app.tsx b/apps/client/src/app.tsx
index cbc7aad..f0e529a 100644
--- a/apps/client/src/app.tsx
+++ b/apps/client/src/app.tsx
@@ -6,18 +6,18 @@
 import { LobbyScene } from "./scenes/lobby/LobbyScene";
 import { GameScene } from "./scenes/game/GameScene";
 
-import { ScenePhase } from "@repo/shared";
+import { appConsts } from "@repo/shared";
 
 export default function App() {
   const { scenePhase, room, myId } = useAppFlow();
 
   // タイトル画面分岐
-  if (scenePhase === ScenePhase.TITLE) {
+  if (scenePhase === appConsts.ScenePhase.TITLE) {
     return <TitleScene onJoin={(payload) => socketClient.joinRoom(payload)} />;
   }
   
   // ロビー画面分岐
-  if (scenePhase === ScenePhase.LOBBY) {
+  if (scenePhase === appConsts.ScenePhase.LOBBY) {
     return <LobbyScene room={room} myId={myId} onStart={() => socketClient.startGame()} />;
   }
 
diff --git a/apps/client/src/hooks/useAppFlow.ts b/apps/client/src/hooks/useAppFlow.ts
index b0ee7b3..7280ba7 100644
--- a/apps/client/src/hooks/useAppFlow.ts
+++ b/apps/client/src/hooks/useAppFlow.ts
@@ -1,26 +1,26 @@
 import { useEffect, useState } from "react";
 import { socketClient } from "../network/SocketClient";
-import { ScenePhase } from "@repo/shared";
-import type { ScenePhase as ScenePhaseType, Room } from "@repo/shared";
+import { appConsts } from "@repo/shared";
+import type { appTypes, roomTypes } from "@repo/shared";
 
 type AppFlowState = {
-  scenePhase: ScenePhaseType;
-  room: Room | null;
+  scenePhase: appTypes.ScenePhase;
+  room: roomTypes.Room | null;
   myId: string | null;
 };
 
 export const useAppFlow = (): AppFlowState => {
-  const [scenePhase, setScenePhase] = useState<ScenePhaseType>(ScenePhase.TITLE);
-  const [room, setRoom] = useState<Room | null>(null);
+  const [scenePhase, setScenePhase] = useState<appTypes.ScenePhase>(appConsts.ScenePhase.TITLE);
+  const [room, setRoom] = useState<roomTypes.Room | null>(null);
   const [myId, setMyId] = useState<string | null>(null);
 
   useEffect(() => {
     socketClient.onConnect((id) => setMyId(id));
     socketClient.onRoomUpdate((updatedRoom) => {
       setRoom(updatedRoom);
-      setScenePhase(ScenePhase.LOBBY);
+      setScenePhase(appConsts.ScenePhase.LOBBY);
     });
-    socketClient.onGameStart(() => setScenePhase(ScenePhase.PLAYING));
+    socketClient.onGameStart(() => setScenePhase(appConsts.ScenePhase.PLAYING));
   }, []);
 
   return { scenePhase, room, myId };
diff --git a/apps/server/src/domains/game/GameHandler.ts b/apps/server/src/domains/game/GameHandler.ts
index c1d5980..2a45b4e 100644
--- a/apps/server/src/domains/game/GameHandler.ts
+++ b/apps/server/src/domains/game/GameHandler.ts
@@ -1,7 +1,7 @@
 import { Server, Socket } from "socket.io";
 import { GameManager } from "./GameManager";
 import { RoomManager } from "../room/RoomManager";
-import { protocol, RoomPhase } from "@repo/shared";
+import { protocol, roomConsts } from "@repo/shared";
 import type { playerTypes } from "@repo/shared";
 
 export const registerGameHandlers = (io: Server, socket: Socket, gameManager: GameManager, roomManager: RoomManager) => {
@@ -19,7 +19,7 @@
       return;
     }
 
-    if (room.status === RoomPhase.PLAYING) {
+    if (room.status === roomConsts.RoomPhase.PLAYING) {
       console.log("[GameHandler] START_GAME ignored (already playing)", { roomId: room.roomId });
       return;
     }
@@ -31,7 +31,7 @@
     });
 
     if (room) {
-      room.status = RoomPhase.PLAYING;
+      room.status = roomConsts.RoomPhase.PLAYING;
 
       const playerIds = room.players.map((p: { id: string }) => p.id);
       
@@ -60,7 +60,7 @@
           // 3分経過時に GameLoop から呼ばれる処理
           console.log(`[GameHandler] ルーム ${room.roomId} のゲームが終了しました (3分経過)`);
           io.to(room.roomId).emit(protocol.SocketEvents.GAME_END); // クライアントへ終了通知
-          room.status = RoomPhase.WAITING; // ルーム状態を待機に戻す
+          room.status = roomConsts.RoomPhase.WAITING; // ルーム状態を待機に戻す
         }
       );
         
diff --git a/apps/server/src/domains/room/RoomManager.ts b/apps/server/src/domains/room/RoomManager.ts
index cfe8358..48832ec 100644
--- a/apps/server/src/domains/room/RoomManager.ts
+++ b/apps/server/src/domains/room/RoomManager.ts
@@ -1,25 +1,25 @@
-import { RoomPhase, config } from "@repo/shared";
-import type { Room, RoomMember } from "@repo/shared";
+import { roomConsts, config } from "@repo/shared";
+import type { roomTypes } from "@repo/shared";
 
 export class RoomManager {
-  private rooms: Map<string, Room> = new Map();
+  private rooms: Map<string, roomTypes.Room> = new Map();
 
   // ルームにプレイヤーを追加（なければ作成）
-  public addPlayerToRoom(roomId: string, socketId: string, playerName: string): Room {
+  public addPlayerToRoom(roomId: string, socketId: string, playerName: string): roomTypes.Room {
     let room = this.rooms.get(roomId);
     if (!room) {
       room = {
         roomId: roomId,
         ownerId: socketId,
         players: [],
-        status: RoomPhase.WAITING,
+        status: roomConsts.RoomPhase.WAITING,
         maxPlayers: config.GAME_CONFIG.MAX_PLAYERS_PER_ROOM
       };
       this.rooms.set(roomId, room);
       console.log("[RoomManager] created room", { roomId, ownerId: socketId });
     }
 
-    const newPlayer: RoomMember = {
+    const newPlayer: roomTypes.RoomMember = {
       id: socketId,
       name: playerName,
       isOwner: room.ownerId === socketId,
@@ -37,8 +37,8 @@
   }
 
   // プレイヤーをルームから削除し、更新があったルームの配列を返す
-  public removePlayer(socketId: string): Room[] {
-    const updatedRooms: Room[] = [];
+  public removePlayer(socketId: string): roomTypes.Room[] {
+    const updatedRooms: roomTypes.Room[] = [];
     
     for (const [roomId, room] of this.rooms.entries()) {
       const playerIndex = room.players.findIndex(p => p.id === socketId);
@@ -72,7 +72,7 @@
   }
 
   // オーナーIDからルームを取得
-  public getRoomByOwnerId(ownerId: string): Room | undefined {
+  public getRoomByOwnerId(ownerId: string): roomTypes.Room | undefined {
     for (const room of this.rooms.values()) {
       if (room.ownerId === ownerId) {
         return room;
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index 0464d77..266bcd1 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -3,15 +3,8 @@
 export * as gridMapLogic from "./domains/gridMap/gridMap.logic";
 export * as playerTypes from "./domains/player/player.type";
 export * as appTypes from "./domains/app/app.type";
+export * as appConsts from "./domains/app/app.const";
 export * as roomTypes from "./domains/room/room.type";
-export { ScenePhase } from "./domains/app/app.const";
-export { RoomPhase } from "./domains/room/room.const";
-export type {
-	RoomPhase as RoomPhaseType,
-	Room,
-	RoomMember,
-	JoinRoomPayload,
-} from "./domains/room/room.type";
-export type { ScenePhase as ScenePhaseType } from "./domains/app/app.type";
+export * as roomConsts from "./domains/room/room.const";
 export * as protocol from "./protocol/events";
 export * as config from "./config";
\ No newline at end of file