SimEarth: The Living Planet

An entire planet becomes your laboratory in this large-scale simulation game. Players help foster new life and promote its evolution into life forms of higher intelligence. Guide civilization along the path of evolution until it can achieve Exodus, the ultimate goal of settling on another planet. The basic challenge of the game is to maintain a comfortable environment for the life forms by adjusting atmospheric and geological parameters. Small organisms called Prokaryote and Trichordate will grow and evolve into a multitude of life forms. Making a drastic change is a recipe for disaster.