Asteroids

Rotate, thrust, and drift — your ship keeps its momentum, and everything wraps around the screen edges. Blast the big rocks apart into faster fragments and sweep the field to bring on the next wave. The saucer shows up now and then to take pot-shots; an extra ship arrives at 10,000 points. Respawns come with a brief shield — use it to escape a crowded middle.

Keyboard: ←/→ or A/D rotate · ↑/W thrust · Space fire · P pause — or the on-screen pad on touch screens