Number Drop Puzzle

How it works

Tetromino-shaped pieces fall from the top — but instead of colours, each cell carries a number from 1 to 9. When a digit lands on an equal digit, they merge into one tile worth N−1. That collision triggers a chain reaction: every neighbour (up, down, left, right) drops by 1, then their neighbours drop by 1, and the wave keeps rippling outward through every connected tile. Any tile that reaches zero disappears.

Set up the right collision and a single merge can cascade across the whole board.

Touch: swipe to move/drop, tap to rotate.