vivarium73 is an evolution simulation where neural-network-controlled creatures move around searching for food, avoid obstacles, and evolve over time.

• creatures detect food and obstacles in their surroundings
• [NEW] when a creatures collides with another creature, obstacle or wall, it looses energy
• they gain energy by eating and lose it by moving and hitting obstacles
• when a creature reaches full energy, it creates an offspring with a chance of mutation
• if a creature runs out of energy, it dies
• when all creatures are gone, the simulation restarts by reviving the best-performing ones
• over time, mutations can lead to more effective survival strategies
• [NEW] click on any empty spot to place extra food

more: github