diff --git a/apps/server/src/domains/game/application/services/GameRoomSession.ts b/apps/server/src/domains/game/application/services/GameRoomSession.ts
index 4e31055..dea7e1f 100644
--- a/apps/server/src/domains/game/application/services/GameRoomSession.ts
+++ b/apps/server/src/domains/game/application/services/GameRoomSession.ts
@@ -42,7 +42,6 @@
     this.gameLoop = new GameLoop(
       this.roomId,
       tickRate,
-      this.getPlayerIds(),
       this.players,
       this.mapStore,
       onTick,
diff --git a/apps/server/src/domains/game/loop/GameLoop.ts b/apps/server/src/domains/game/loop/GameLoop.ts
index c5a9f9e..e1482f1 100644
--- a/apps/server/src/domains/game/loop/GameLoop.ts
+++ b/apps/server/src/domains/game/loop/GameLoop.ts
@@ -29,7 +29,6 @@
   constructor(
     private roomId: string,
     private tickRate: number,
-    private playerIds: string[],
     private players: Map<string, Player>,
     private mapStore: MapStore,
     private onTick: (data: TickData) => void,
@@ -55,9 +54,7 @@
       const playersData: TickData["players"] = [];
 
       // 1. 各プレイヤーの座標処理とマス塗りの判定
-      this.playerIds.forEach(id => {
-        const player = this.players.get(id);
-        if (!player) return;
+      this.players.forEach((player) => {
 
         const gridIndex = getPlayerGridIndex(player);
         if (gridIndex !== null) {