Beautiful to watch, and mentally stimulating until you find the perfect combination of behaviors that results in a creature that never dies. Then the challenge is to tweak it until it makes a big family. I havent done that yet. So far, not dying = avoid the sun, eat nearby food, run toward food when predators are near, attack scavengers when you get hungry. The rest are just for fun, but I still dont have a big family. Let me know if you make a big family.
The things that would make this app sell better are if you could compete organisms with other players, and if you could keep playing when you die if you still have family alive, like pick one of them to jump to. I dont ever play sandbox mode.
Culhullen about Artificial Life, v2.4