diff --git a/apps/server/src/domains/game/application/ports/gameUseCasePorts.ts b/apps/server/src/domains/game/application/ports/gameUseCasePorts.ts
index 56ae47e..bbeb4f2 100644
--- a/apps/server/src/domains/game/application/ports/gameUseCasePorts.ts
+++ b/apps/server/src/domains/game/application/ports/gameUseCasePorts.ts
@@ -1,4 +1,5 @@
 import type { TickData } from "../../GameLoop";
+import type { playerTypes } from "@repo/shared";
 
 export interface StartGamePort {
   addPlayer(id: string): void;
@@ -12,7 +13,7 @@
 }
 
 export interface ReadyForGamePort {
-  getAllPlayers(): unknown[];
+  getAllPlayers(): playerTypes.PlayerData[];
   getRoomStartTime(roomId: string): number | undefined;
 }
 
diff --git a/apps/server/src/domains/game/application/useCases/readyForGameUseCase.ts b/apps/server/src/domains/game/application/useCases/readyForGameUseCase.ts
index f0cf53b..dfae3fd 100644
--- a/apps/server/src/domains/game/application/useCases/readyForGameUseCase.ts
+++ b/apps/server/src/domains/game/application/useCases/readyForGameUseCase.ts
@@ -1,11 +1,12 @@
 import type { ReadyForGamePort } from "../ports/gameUseCasePorts";
+import type { playerTypes } from "@repo/shared";
 import { logEvent } from "@server/logging/logEvent";
 
 type ReadyForGameUseCaseParams = {
   socketId: string;
   roomId?: string;
   gameManager: ReadyForGamePort;
-  publishCurrentPlayers: (players: unknown[]) => void;
+  publishCurrentPlayers: (players: playerTypes.PlayerData[]) => void;
   publishGameStart: (payload: { startTime: number }) => void;
 };
 
diff --git a/apps/server/src/domains/game/application/useCases/startGameUseCase.ts b/apps/server/src/domains/game/application/useCases/startGameUseCase.ts
index 39a0f4d..aa45777 100644
--- a/apps/server/src/domains/game/application/useCases/startGameUseCase.ts
+++ b/apps/server/src/domains/game/application/useCases/startGameUseCase.ts
@@ -1,4 +1,5 @@
 import { roomConsts } from "@repo/shared";
+import type { gridMapTypes, playerTypes } from "@repo/shared";
 import { RoomManager } from "@server/domains/room/RoomManager";
 import type { StartGamePort } from "../ports/gameUseCasePorts";
 import { logEvent } from "@server/logging/logEvent";
@@ -7,8 +8,8 @@
   ownerId: string;
   gameManager: StartGamePort;
   roomManager: RoomManager;
-  publishUpdatePlayer: (roomId: string, playerData: unknown) => void;
-  publishMapCellUpdates: (roomId: string, cellUpdates: unknown[]) => void;
+  publishUpdatePlayer: (roomId: string, playerData: playerTypes.PlayerData) => void;
+  publishMapCellUpdates: (roomId: string, cellUpdates: gridMapTypes.CellUpdate[]) => void;
   publishGameEnd: (roomId: string) => void;
   publishGameStart: (roomId: string, payload: { startTime: number }) => void;
 };