Simulation you can play with right now

Over a hundred simulation projects, each running live on its creator's own site: some of them vibe-coded with AI, all of them playable in your browser with nothing to install. Press a card to play one on its own page, or start the cruise to ride through them one after another.

Small worlds running on rules: slime moulds growing transport networks, falling sand you can pour and burn, boids flocking, a three-sun orbit that will not settle, a datacenter that overheats if you wire it wrong. Poke one and watch what it does next.

Play all 161 simulation → Browse all projects Submit your vibe

Made one of these? See how many people played yours → or use email

Best first 1–100 of 161

Questions about simulation

What kind of simulations are these?

Mostly living systems and toy physics: cellular automata, reaction-diffusion, flocking, sand and fluids, orbits. A few are management games, like keeping servers or a datacenter alive, and a few walk you through something real, like a lunar mission.

How do I interact with them?

Click or drag to seed, paint or disturb the system, and look for sliders that change the rules. Some are best left alone for a minute: the interesting part is what grows.

Will it run on my phone?

Many will. The heavier ones move hundreds of thousands of agents on the graphics card and are happiest on a laptop or desktop; if one stutters, press next.