Chain Reaction Machine SimulatorOver-engineer a simple task, one domino at a time.

Combine pendulums, balls, ramps, see-saws, spinning paddles, bumpers, dominoes and bells in a side-view sandbox with real physics.
Start from a ready-made machine, change one part at a time and export the run as a video with sound.

Real physicsReady-made machinesVideo with sound

No sign-up No watermark Runs in your browser

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THREE SIMPLE STEPS

How to use the Chain reaction machine simulator

Open a machine

The Chain reaction scene is loaded: a pendulum hits a ball, the ball runs into dominoes and the last part rings a bell.

Change the parts

Add ramps, see-saws, pendulums, bumpers or paddles, move them with Select and press Start to test.

Record it

Open Video and export a vertical or wide clip, in slow motion if you like, with every hit synthesized.

WaveSpeed AI

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Make a thumbnail, an intro or a whole scene around your clip with WaveSpeed AI.

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Pay as you go

$1 in free credits for eligible new accounts. No card needed. Generators have separate account and credit requirements. The domino chain reaction simulator is free.

Chain reaction machine simulator FAQ

What is a chain reaction machine?

A deliberately complicated contraption in which one action sets off the next: a ball rolls, dominoes fall, a lever tips and a bell rings at the end. This simulator lets you build one on screen.

Which parts can I use?

Domino rows that stand on any surface, balls, fixed ramps and shelves, see-saws, pendulums, bouncy bumpers, spinning paddle wheels and bells that ring when hit.

Does the machine run the same way every time?

Yes. The physics uses a fixed time step and no randomness, so the same layout always plays out the same way and the video matches the preview.

Can I share my machine?

Copy link puts the whole machine into the address, or save it as a file. Anyone who opens it can run it and change it.

Can I export the run as a video?

Yes, as an MP4 at 1080×1920, 1080×1080 or 1920×1080, at 30 or 60 fps and in slow motion if you want. Free, no sign-up, no watermark.

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Domino Chain Reaction Simulator