Ahh, Spore. If you don't know what it is, it's a god game. You create and control a species from cells to intergalactic gods. From Will Right the creator of the Sims. The basic premise of the game is that you control an entire species. The game centralizes around editors, suchn as the creature, vehicle, and planet editors. You create your own creature, and the editors are so diverse, there is a infinite amount of creatures you can create. And, the game is populated by other peoples creatures downloaded to your computer. You can read more here.