A billion hungry cells on the floor of a lightless sea. Wage the war alone against a rival strain — or, soon, against another living colony across the water.
One living rival across the water, in lockstep. Create a match and share the code, or join a friend's.
Best iPhone-to-iPhone (same browser engine).
You are the colony — a billion hungry cells on the floor of a lightless sea. Claim the craters, rewrite your genome, and drown your rival, before the rising oxygen drowns you both.