Join the numbers and get to the 2^n tile!
How to play: Use your arrow keys to move the tiles. When two tiles with the same number touch, they merge into one!
I got hooked on 2048 after playing the Doctor Who Edition obsessively on my lunch break.
Unnecessarily excited with the powers-of-twoness of the game, I forked the code and extended it to allow bigger grids and a higher target number.
Right now you can play in three modes:
Adapted by Tom Elliott from 2048 by Gabriele Cirulli. 2048 was based on 1024 by Veewo Studio and conceptually similar to Threes by Asher Vollmer.