Join the tiles and get to the 生！
How to play: Use your arrow keys to move the tiles. When two tiles with the same rank touch, they merge into one! The ranks used in this game are: 种 (species)、属 (genus)、科 (family)、目 (order)、亚纲 (subclass)、纲 (class)、亚门 (subphylum)、门 (phylum)、界 (kingdom)、域 (domain)、生 (life) ! (Why Chinese? The English names of the ranks are too long, so I have to use very small font size, which looks terrible.)
Note: This is a fork from http://gabrielecirulli.github.io/2048 created by Gabriele Cirulli.