Spore is an upcoming game for the PC. Spore is an evolution game where you start out as a microscopic organism and eventually become a galactic ruler.
This game seems very open-ended and that you create everything. It is very centered in making the player not seem stupid as in you can put anything anywhere.
There are five stages in the game. The cell stage, the creature stage, the tribal stage, the civiliaiation stage, and the galactic stage. Each stage is sorta its own game and has totally different ways to play it.
Spore should be comig out on the PC in June of next year.
If you would like to have a more in-depth view. go to www.spore.com or just check out my union