Interesting simulation. I understand that this is not 100% a game, but I would like to alow the player to have an impact on the creatures. The comment below contains some great ideas. Also I want to see more advanced creatures with arms, legs, and other stuff. Maybe a bigger world would be cool. Also add a way so the creatures can evolve into civilisations! I would LOVE to see that. Keep updating this project please. So far you are doing a great job :D