I finally got to play my copy of Primordial Soup last night. This is a classic board game that I finally own :) Everyone plays a number of Amoebas that are drifting in the currents of the Primordial Soup trying to evolve. Every round you have to drift, eat and poop. You always have to eat three cubes of any color except your own, and you always poop out 2 cubes of your own color. This means after a while if you are not careful you end up drifting in a sea of your own poop starving to death :)
You can evolve with new genes that change how you move, eat, fight and even allow you to eat other people!
It's a lot of fun and I'm glad I got to give it a play - thanks Bill and Greg for indulging me!