Random Sticker Jopiggy Tools
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Random & Giveaways

Physics-based marble race simulator for streamers, raffles, and team drawings. Powered by Box2D physics for verifiably fair random outcomes.

Running a giveaway or need a fair way to pick winners? Our marble race simulator turns random selection into an exciting physics-based spectacle. Powered by Box2D physics, every race is unique, fair, and visually engaging — perfect for streamers, team drawings, and party games.

The marble race simulator uses the Box2D physics engine (the same engine behind Angry Birds) to simulate realistic gravity, collision, and friction. Every race is a genuine physical simulation — no pre-rendered animations, no predetermined outcomes. Two game modes are available: Race Mode where marbles race to the finish line, and Survival Mode where the last marble standing wins.

Supporting up to 1000 participants, the tool uses a simple name*quantity syntax for bulk entries. An intelligent camera system automatically tracks the leading pack in Race Mode or marbles on the brink of elimination in Survival Mode. Race Mode features a slow-motion Photo Finish, while Survival Mode zooms in for the final showdown — turning every draw into an event.

Frequently Asked Questions

Are the race results truly random?
Yes. While the physics are deterministic, floating-point precision variations and micro-random perturbations ensure every race produces unpredictable results. This guarantees fairness while maintaining the visual excitement of physical simulation.
How many participants can join?
Up to 1000 participants recommended for optimal performance. The system runs at 60 FPS even with hundreds of marbles on modern devices. If you experience lag, try keeping the count under 200.
Can I use this on my Twitch or YouTube stream?
Absolutely! The tool is completely free, watermark-free, and ad-free. Simply share your browser window in your streaming software. It's designed specifically for streamer-audience interaction.
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