diff --git a/convex/maps.ts b/convex/maps.ts
index 6d2d285..d4c5088 100644
--- a/convex/maps.ts
+++ b/convex/maps.ts
@@ -331,10 +331,23 @@ export const playMapAction = internalAction({
 
     if (process.env.FLAG_MOCK_MODELS === "true") {
       const existingMap = ZombieSurvival.cloneMap(map.grid);
+      const playerPosition = ZombieSurvival.nextValidPosition(existingMap);
 
-      existingMap[0][0] = "P";
-      existingMap[0][1] = "B";
-      existingMap[0][2] = "B";
+      if (playerPosition !== null) {
+        existingMap[playerPosition.y][playerPosition.x] = "P";
+      }
+
+      const firstBoxPosition = ZombieSurvival.nextValidPosition(existingMap);
+
+      if (firstBoxPosition !== null) {
+        existingMap[firstBoxPosition.y][firstBoxPosition.x] = "B";
+      }
+
+      const secondBoxPosition = ZombieSurvival.nextValidPosition(existingMap);
+
+      if (secondBoxPosition !== null) {
+        existingMap[secondBoxPosition.y][secondBoxPosition.x] = "B";
+      }
 
       await ctx.runMutation(internal.results.updateResult, {
         resultId,
diff --git a/simulators/zombie-survival/ZombieSurvival.ts b/simulators/zombie-survival/ZombieSurvival.ts
index ee3c973..88f374b 100644
--- a/simulators/zombie-survival/ZombieSurvival.ts
+++ b/simulators/zombie-survival/ZombieSurvival.ts
@@ -64,6 +64,18 @@ export class ZombieSurvival {
     return map.length === 0 || map[0].length === 0;
   }
 
+  public static nextValidPosition(map: string[][]): Position | null {
+    for (let y = 0; y < map.length; y++) {
+      for (let x = 0; x < map[y].length; x++) {
+        if (map[y][x] === " ") {
+          return { x, y };
+        }
+      }
+    }
+
+    return null;
+  }
+
   public static validLocations(map: string[][]): number[][] {
     return map.flatMap((row, y) =>
       row.reduce((acc, cell, x) => {