EvoSim

Interactive 3D evolution simulator for undergraduate General Biology II laboratory use.

Students manipulate a population of aquatic organisms with visible Mendelian genomes, observe allele frequencies shift under selection, drift, mutation, and gene flow, watch meiosis happen on screen, and run end-to-end scenarios covering every sub-concept in Campbell Biology chapters 22 through 24.

Status

Early development. See EVOSIM_SPEC.md for the v1.0 specification and CLAUDE.md for coding-agent notes.

Stack

• TypeScript + Vite
• Three.js (3D rendering, WebXR)
• Rust compiled to WebAssembly (single-threaded, stable Rust)
• Playwright for end-to-end tests, Vitest for TypeScript unit tests, cargo test for Rust unit tests

Getting started

npm install
npm run build:wasm
npm run dev

Open http://localhost:3000 in a modern browser.

License

MIT. See LICENSE.