Spore

Amazon.com
Create universal wonder in Spore, an exciting new simulation game that lets you develop your own personal universe. Work your way through five evolutionary phases, including Cell, Creature, Tribe, Civilization and Space, that offer unique challenges, thrills and goals. For example, you can start in Cell and nurture one species from a simple aquatic organism all the way until it becomes a sentient life form. Or you can jump right in and begin building tribes and civilizations on multiple planets. What you do with your universe is totally up to you.

The powerful creation tools of Spore are easy to use, allowing you to effortlessly design every aspect of your universe. Creatures, vehicles, building and even starships are all within your grasp. While Spore is a single-player game, your creations and other players' creations are automatically shared between your galaxy and theirs, offering a nearly limitless number of worlds to visit and enjoy. You can also go online to view the incredible things other players have made and can even pull those items into your universe. Spore gives you the chance to make worlds and beings that evolve, grow and delight you every step of the way.