Stone Belt

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 2151.7 Hz, 748 cents sharp of F6, the nearest tine on the comb. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap or press Space to play. ← → turn, ↑ thrusts, Space fires. On a phone, hold a finger where to go.

The rocks here are the real shapes of seven asteroids, Bennu, Itokawa, Eros, Kleopatra, Geographos, Toutatis and Golevka, from NASA's public-domain models. They drift and tumble across a field that wraps round at its edges. A shot splits a big rock into two smaller ones and a small one into dust, with chips flying off each time; a rock that hits your ship costs a ship. The 3D button drops the camera in behind your ship, so the rocks show their real shapes as they tumble past.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.