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Game · Simulation & management

The Powder Toy

The Powder Toy is a sandbox game, available on Linux.

  • Completely free
  • Linux
  • Open source

At a glance

All of The Powder Toy is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Have you ever wanted to blow something up? Or maybe you always dreamt of operating an atomic power plant? Do you have a will to develop your own CPU? The Powder Toy lets you to do all of these, and even more! The Powder Toy is a free physics sandbox game, which simulates air pressure and velocity, heat, gravity and a countless number of interactions between different substances! The game provides you with various building materials, liquids, gases and electronic components which can be used to construct complex machines, guns, bombs, realistic terrains and almost anything else. You can then mine them and watch cool explosions, add intricate wirings, play with little stickmen or operate your machine. You can browse and play thousands of different saves made by the community or upload your own – we welcome your creations! There is a Lua API – you can automate your work or even make plugins for the game. The Powder Toy is free and the source code is distributed under the GNU General Public License, so you can modify the game yourself or help with development.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

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