Evolution
keiwan.itch.io
Build a jointed creature and let it learn to walk
Sandboxes & Simulators
Random two-wheeled cars, bred over generations, on hills
rednuht.org
Coffee break · Best on desktop
Free, no sign-up · online since 2014
A population of randomly shaped vehicles with two wheels each attempts to drive across rough terrain. Those that travel furthest are bred together with a little mutation, and after twenty or thirty generations the shapes converge on something that genuinely works.
Watching a hopeless blob with a wheel in the wrong place become a competent buggy, with nobody designing it, is evolution at a speed you can sit through.
Keep going
Picked for a shared category and overlapping vibe, not for popularity.
keiwan.itch.io
Build a jointed creature and let it learn to walk
eater.net
Three rules are all a flock of birds needs
playgameoflife.com
Four rules, and cells that build spaceships anyway
falstad.com
Build a circuit and watch the electrons move through it
pmneila.github.io
Two chemicals, two dials, and every pattern in nature
brm.io
Two dozen physics scenes you can grab and throw about