Anybody ever played this game? It's freeware, and you can download it here: http://www.ventrella.com/Darwin/darwin.html In essence, it's an evolution simulator - you start a map with a random assortment of creatures you can tweak with to improve their chances of survival and swimming abilities. You can also copy-paste your creatures form one game into another - so if anyone comes up with something neat, you can post it here and others can add yours to their map.