Dozens

Dozens is a number puzzle with no clock. Each turn the player gets a tile from 1 to 11 and places it on a free cell of an 8×8 board, where it joins the neighboring tiles into a block. A block that adds up to exactly 12 clears and scores; one that would go past 12 is not allowed. Levels have no end, walls appear from level 3, and the player has three wildcards per run. Single player, offline, free, no in-app purchases.