I've also experimented a bit with this type of simulation quite some time ago, you can find the result here http://lifesoup.sourceforge.net/ http://lifesoup.sou

I've also experimented a bit with this type of simulation quite some time ago, you can find the result here http://lifesoup.sourceforge.net/ http://lifesoup.sourceforge.net/ This tries to simulate simple "swimmers" where the fastest survives and spawn new entities with slight variations. (Note: this is not my best code :-))