Project Genesis: Artificial Life & Selection
A closed ecosystem where particles must evolve or die. Instead of spawnable food, low-trophic "producers" (plants) recharge from Sunlight, while high-trophic "consumers" (predators) must hunt and consume other particles to survive.
Moving fast has a high metabolic cost (Energy ∝ Speed²), forcing the evolution of efficient hunting strategies. Trophic levels, instincts, and physical traits are all inherited and mutated across generations.