Sky Roller 3D

Open Sky Roller 3D and you are playing — an Arcade game that runs on the page rather than beside it. Designed around touch input, and comfortable on a small screen. Its tags here are .io, 1 player, 2d, 3d, arcade.

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.