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Particle Physics SimulatorUniverse Sandbox
Free

Free and open source under the GPL-2.0 licence.

 Paid

One-time purchase from the website or Steam.

Android Windows, macOS, Linux
  • Real-time N-body gravity simulation
  • Adjustable gravity, friction, particle count and collisions
  • N-body gravity simulation using Newtonian mechanics
  • Earth climate model you can alter
  • Android only
  • A sandbox rather than a structured course
  • Paid only
  • Needs a reasonably capable desktop computer
Downloadable app Downloadable app
Open source Closed source
License: GPL-2.0-only License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.