diff --git a/src/core/GameRunner.ts b/src/core/GameRunner.ts
index 2fca55402..552a15a9e 100644
--- a/src/core/GameRunner.ts
+++ b/src/core/GameRunner.ts
@@ -185,13 +185,9 @@ export class GameRunner {
     let packedTileUpdates: BigUint64Array;
     const tileUpdates = updates[GameUpdateType.Tile];
     if (this.tileUpdateSink !== undefined) {
-      const seenTiles = new Set<TileRef>();
       for (const u of tileUpdates) {
         const tileRef = Number(u.update >> 16n) as TileRef;
-        if (!seenTiles.has(tileRef)) {
-          seenTiles.add(tileRef);
-          this.tileUpdateSink(tileRef);
-        }
+        this.tileUpdateSink(tileRef);
       }
       packedTileUpdates = new BigUint64Array();
     } else {