🔮 Marble Race Roulette
Free physics marble race for streamers — enter names, click Start, watch the race live.
Marble Race Roulette — FAQ
What is Marble Roulette?
A free, browser-based physics marble race. Participants race as colored marbles down a 7,200px track with Galton pins, twin windmills, pinball bumpers, a vortex funnel, and a giant finale propeller.
How do I use it on OBS?
Add a Browser Source in OBS pointing to this page, or use Window Capture. Click the ⛶ Fullscreen button for clean, borderless broadcast capture. Add ?stream=true to the URL to disable ads.
Multiple marbles per person?
Type Alice * 3 in the participant list to give Alice three marbles — all the same color. More marbles = higher winning chance.
Is the result fair?
Every frame runs a real 2D rigid-body physics simulation. No one can predict or manipulate the outcome.