The sunlight that shines down upon this world is transformed into energy by green biots. But it's not a safe world for green biots. There are red predator biots that can feed on green biots. I wrote Primordial Arena to capture the principles of evolution in an interesting and visual way. In comparison to Primordial Arena 2.1, Primordial Arena 3.0 has improved physics, with rotation, momentum, and variable velocities.
Collisions are much more interesting, resulting in both rotational and transitional effects.
Biots now visually attack each other by removing each others lines. Biots now have propulsion lines to move around on their own. You'll find I've added other capabilities as well. Thanks for trying Primordial Arena. To install Primordial Arena, download Arena30.exe into a directory of your choice.