This casual puzzle supports general recreation and cognitive engagement. It is not a medical assessment or treatment.
How to play
Move every tile with the arrow keys, WASD, or a swipe. Equal numbers merge once per move. Plan ahead to keep your largest tile in a stable corner and preserve open cells.
Power-ups and rewards
- Undo restores the position before your last valid move.
- Shuffle rearranges the occupied tiles without changing their values.
- Remove 2/4 clears one of the lowest tiles.
- Reaching 128, 512, and 2048 restores selected power-ups. Signed-in players can record scores, earn server-checked Starfruit rewards, and enter the leaderboard.
Possible general benefits
Number grouping and planning may provide light practice in attention, working memory, pattern recognition, and decision-making. These are possible recreational benefits, not proven treatment effects. Take breaks if you feel tired or frustrated.