Genesis Protocol

A 13-crate Rust simulation engine running agent-based metabolic civilizations under configurable evolutionary pressure. Every result is anchored by SHA-256 hash chain. Every experiment is fully reproducible from seed. 93 source files, 396 tests, 26,158 lines of code. Architecture spans 7 layers: Identity Layer (genesis-dna — genome, phenotype, trait system, lineage), Metabolic Layer (metabolism — ATP ledger, treasury, proof-of-work, decay), Evolutionary Layer (evolution — mutation engine, fitness-gated selection, gene marketplace), Ecological Layer (ecosystem — niche mesh, Lotka-Volterra dynamics, 40% extraction cap), Regulatory Layer (genesis-homeostasis — adaptive cortex, immune system), Anchoring Layer (genesis-anchor — SHA-256 Merkle chain), Runtime Layer (gateway — world runtime, epoch loop, stress config). Plus Experimental (genesis-experiment, genesis-multiverse, genesis-replay, genesis-econometrics) and Network (genesis-federation, apostle) layers. 4 hard-coded invariants: 50 ATP primordial grant, 40% extraction cap, 0.15 ATP/epoch basal cost, fitness≥0.35 reproduction gate. S4 Full Attack: 120 worlds, zero collapses. The Cliff: collapse rate jumps from 0% at floor=3 to 97.5% at floor=10. ChaCha8 RNG with 5 domain-separated streams. 10 sweep variables, 28 measurable metrics. 44 experiments across 2 seasons. Live browser simulation (JavaScript approximation). Moltbook research showcase: 30 posts, 83 comments, 41 unique voices. Published on crates.io as genesis-multiverse. CI matrix: Ubuntu/Windows/macOS.