Real genetics. Real biochemistry. LLM cognition. Three.js rendering. ECS architecture. A full production codebase — yours to study, fork, and build on.
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Real genome encoding with alleles, dominance, crossover, and mutation. Every creature carries heritable traits that affect biochemistry and behavior.
Chemical reactions, hormonal systems, organ simulation, hunger, fatigue, and aging. Behavior emerges from chemistry, not scripts.
Creatures think using language models. Their decisions integrate biochemical state, memory, social context, and personality traits encoded in their genome.
Entity-Component-System design handling 1000+ entities. Components for genetics, biochemistry, cognition, rendering, physics, and social behavior.
Custom rendering pipeline with procedural creature generation, biome shaders, day/night cycles, and a 14,400-pixel scrolling world.
Complete development environment: TypeScript, Vite, testing, CI/CD, deployment. Everything you need to fork and ship your own version.
ECS architecture, entity lifecycle, world generation, biome systems, physics, and the Three.js rendering pipeline. How to build a world that supports emergent life.
Genome encoding, allele expression, crossover and mutation, biochemical reactions, hormonal systems, organ simulation. How life emerges from chemistry.
LLM integration, prompt engineering for creature minds, memory systems, social modeling, personality traits, and decision-making architecture. How thought emerges from biology.
// Genetic Engine — Crossover with positional bias
export function crossover(parentA: Genome, parentB: Genome): Genome {
const offspring = new Genome();
for (let i = 0; i < parentA.chromosomes.length; i++) {
const crossPoint = Math.floor(Math.random() * parentA.chromosomes[i].length);
offspring.chromosomes[i] = [
...parentA.chromosomes[i].slice(0, crossPoint),
...parentB.chromosomes[i].slice(crossPoint),
];
}
return mutate(offspring, MUTATION_RATE);
}Simplified for display. The actual implementation includes dominance hierarchies, linked genes, and epigenetic markers.
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