Slide the tiles, chain merges, and push the combo reactor higher.
Move the tiles with the arrow keys, WASD, on-screen direction buttons, or swipe gestures. Two matching numbers merge into one larger tile.
A combo continues when consecutive valid moves create merges, increasing the feedback intensity. A move without a merge starts the chain over.
Your best score, highest tile, and largest combo stay in the current browser. They are available on the same device without an account or server upload.
If WebGL is unavailable, the game automatically switches to a numbered CSS board with the same rules and controls so you can keep playing.