2048 Merge Block

2048 Merge Block is listed here under Arcade. There is no launcher and no install between you and it. Taps and swipes are the whole vocabulary — a phone plays it best. Listed under 3d, block, boy, brain, casual.

It is drawn for a tall screen, so it fills a phone held upright rather than a wide monitor. Everything runs client-side, so there is nothing to set up before you start.