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. Making a drastic change is a recipe for disaster. The key to success is to make small adjustments and see how the life forms react. SimEarth also includes planets with environments different from Earth, such as Mars and Venus.