Battalion Commander 1917

Battalion Commander 1917 is one of the Shooting games here that asks for no download and no sign-up. Designed around touch input, and comfortable on a small screen. Listed under 1 player, 2d, battle, shoot ’em up, tank.

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.