A gravity sandbox in the browser. Fling planets at each other, watch orbits settle or collapse, and get an intuition for the n-body problem by wrecking it.
A space colony game whose lab doubles as a playground of live physics simulations, from orbits to black holes and wormholes.
Hundreds of small, clear simulations of physics, chemistry and earth science, from pendulums to tides.
Hundreds of physics, chemistry and biology simulations you can poke at — drag a mass onto a spring, mix a solution, build a circuit and watch it burn out.
Draw a fish and release it into a shared tank where everyone else's fish are already swimming. Vote for your favourites.
Drape a sheet of holographic fabric in 3D, drag it around and fiddle with iridescence, sparkle and sheen until it looks like a foil sticker.
Turn any web page into an Asteroids level and shoot the text, images and buttons to pieces.
