You start as a one celled organism, you end up exploring space and being able to do whatever you want with planets filled with civilizations downloaded from a central server that saves each persons creations on it. What a brilliant little game, not only that but its the new Sims2 basically with lots of mention to it being a brand not a one time game. So Spore will be amazing on its september 5th release and we can expect constant expansion packs to make the game that much more diverse and fun? Count me in.
Plus you can do more than build your creature from scratch, all vehicles and buildings can be custom created as well.
Im very excited.