Mergefall: Number Drop Puzzle

Mergefall is a falling-block number puzzle. Blocks drop into the well one at a time, and when two blocks with the same number touch, they merge into one worth double. 2 becomes 4, 4 becomes 8 — and one good drop can set off a whole chain.

HOW TO PLAY
• Slide the falling block left or right, tap to drop it instantly.
• Matching numbers merge the moment they touch, and a merge can trigger the next one.
• The well fills from the bottom up. The run ends when a new block no longer fits.

THREE WELLS, THREE SPEEDS
• Easy — a wide, deep well and a slow fall. Room to think.
• Medium — the classic board.
• Hard — narrow, shallow and fast. Every drop counts.

IT DOESN'T END AT 2048
Reaching 2048 is a celebration, not a finish line. The run keeps going as long as you can keep the well alive, and the target moves on to 4096, 8192 and beyond.

WORLD RANKING
Every run is scored and sent to a global leaderboard. Your rating grows with your score, the biggest block you built and your longest merge chain, with a bonus for reaching 2048. See exactly where you stand among players around the world.

• Plays offline — runs are uploaded when you are back online
• Quick sessions, one-handed portrait play
• Available in 13 languages