HexSeq is a web-based recreation of Teenage Engineering's Tombola sequencer from their OP-1 synthesizer. It uses React Three Fibre and Rapier physics to create generative music through bouncing balls inside a rotating hexagon.
Drop chords in with your keyboard, control the hexagon's rotation speed, adjust its shape, and experiment with different physics parameters to create unique musical "patterns". The lack of structure probably makes it best suited for generating some interesting ambient sounds. It can be quite mesmerising to play with.
Made using React Three Fibre (three.js) for 3D rendering with the rapier physics engine, and Tone.js for audio.
The mobile experience isn't great as I think triggering too many sounds causes crackling and audio clipping, at least on android/chrome.