The game is set inside a computer that has been running a simulation program. The simulation is kind of like the game of life, but where the life forms (Darwinians) can evolve over time. Your job is to help run programs and direct the Darwinians to get rid of a viral infection that is threatening to wipe out all of the Darwinians. It might sound a little corny, but the game play is very fun and engaging.
There is a fee demo available where you have to help the Darwinians launch a rocket. Since the demo is free, you really ought to give it a try. Best of all the game runs on Windows, Linux and Macintosh, so unless you are still using a Commodore 64 it should run on your platform.