The Powder Toy

The Powder Toy is a particle physics sandbox where you experiment with hundreds of elements and simulate air pressure, heat and gravity. You can create explosions, power plants, reactors, logic circuits, processors, landscapes, bunkers and technical machines.

Build and simulate

Use explosives to make bombs that you can trigger on command. Design and operate nuclear, chemical or hydroelectric power plants and reactors, using real-world and imaginary reactions. You can also build logic circuits and processors, or make landscapes, explosive-resistant bunkers and other machines.

Shared creations

Explore and download millions of saves uploaded by other players, or upload your own. The game also lets you use the Lua API to create custom elements, or download other players’ element packs from the Script Server.

Community development

The Powder Toy is open source under the GPLv3 license and maintained by its community. Anyone can contribute to its development.