THIS GAME IS GOING TO BE SOOOO GOOD.
Spore is a multi-genre "massively single-player online game" under development by Maxis and designed by Will Wright. It allows a player to control the evolution of a species from its beginnings as a unicellular organism, through development as an intelligent and social creature, to interstellar exploration as a spacefaring culture. It has drawn wide attention for its massive scope, and its use of open-ended gameplay and procedural generation.
The full version of the game is due to be released on September 5, 2008 in Europe, and September 7, 2008 in North America and other territories. Spore will also be available for direct download from Electronic Arts on September 7.
plus go here and download the creature creator :O ˘˘˘˘˘˘˘ˇˇˇˇˇˇˇ
I believe this is one of those games like Deus Ex or Civilisation II