Goal: be the last ship still flying. Every round win is one point on the leaderboard.

Moving: hold the pointer where you want to go — your thrusters push you that way. There is no brake: you stop by thrusting the other way, or by hitting somebody.
The sun: the star in the middle vaporises anything that touches it. It never moves; you do.
The ring: the blue safe zone shrinks all round. Drift fully outside it and you are gone, so the arena squeezes everyone toward the sun as the clock runs down.
Bumping: collisions are elastic and heavier ships win exchanges — but every hit briefly stalls both engines, so a reckless charge can leave you coasting into the corona.
Rounds: a new round starts automatically and everyone respawns. Rooms with fewer than three humans get bot ships; beating a bot to the last spot wins the round but scores nothing.