Spore looks incredibly intriguing and it seems to make the highly complex dynamics of evolution seem highly intuitive, and even simple. Since the game procedurally calculates everything, you won't have to manually edit any of your creatures or buildings (though you can if you wish to), and you'll be able to watch your civilization grow from a single microbe. The game is scheduled for release in fall of next year. Stay tuned to GameSpot for more updates.