diff --git a/src/core/GameRunner.ts b/src/core/GameRunner.ts
index 8908e8927..9869ec07c 100644
--- a/src/core/GameRunner.ts
+++ b/src/core/GameRunner.ts
@@ -186,14 +186,13 @@ export class GameRunner {
     let packedTileUpdates: BigUint64Array;
     const tileUpdates = updates[GameUpdateType.Tile];
     if (this.tileUpdateSink !== undefined) {
-      if (tileUpdates.length > 0) {
-        console.log("[GameRunner] tile updates for tick", this.game.ticks(), {
-          count: tileUpdates.length,
-        });
-      }
+      const seenTiles = new Set<TileRef>();
       for (const u of tileUpdates) {
         const tileRef = Number(u.update >> 16n) as TileRef;
-        this.tileUpdateSink(tileRef);
+        if (!seenTiles.has(tileRef)) {
+          seenTiles.add(tileRef);
+          this.tileUpdateSink(tileRef);
+        }
       }
       packedTileUpdates = new BigUint64Array();
     } else {