Scenarios

plays 3615 / votes 1

Fun in red and blue.

plays 6461 / votes 0

Not really invisible, but semi-visible isn't as catchy.

plays 2804 / votes 0

Use your ninja moves.

plays 11011 / votes 2

Destroy 100 little asteroids without getting hit!

plays 2863 / votes 0

A game of Chance

plays 4816 / votes 1

The firing squad synchronisation problem using cellular automata