Particle Physics Simulator offers a physics sandbox with n-body capabilities whe
About this app
Particle Physics Simulator offers a physics sandbox with n-body capabilities where the behaviour of the system is driven by each particle's gravity. Adjust the gravity strength, the number of particles, the friction or the collision policy. Set your initial conditions and just watch the system evolve or intervene to decide the fate of the particles!
Features: - N-body physics simulation with pure gravitational interactions between particles. - Create walls particles can't trespass. Watch them bounce off. - Collision policies: physically realistic elastic collisions, mergers or no collisions at all. - Configurable particle colorus. - Configurable background image/colour. - Configurable gravity strength. - Configurable particle masses and sizes. - Add friction to the mix! - Accelerometer support. - Repulsive forces. - Shoot particles of different sizes. - Repulsive particles. - Static particles. - Simulation area: screen or big area with panning and zooming. - Enable or disable the central black hole which exerts a neat attractive force towards the center. -Enable or disable particle trails (disable to improve performance). -Modify simulation velocity in real time. -Particle-Particle and Particle-Mesh simulation methods. Use first for accuracy, use second for performance. -Display grid densities as background in Particle-Mesh method.
Licensed under GPL-2.0-only, by langurmonkey.
What's New in v3.8.2
Imported from the F-Droid repository index.
Version history
Oct 10, 2025 · 0.3 MB · Android API 29–36 · code 72
Imported from the F-Droid repository index.
SHA-256 bf47d0e803271cfcd512943f3072b453cca96d89ff91fb4fbcf6b28c91242314
Oct 4, 2025 · 0.3 MB · Android API 29–36 · code 71
Imported from the F-Droid repository index.
SHA-256 b10916763f8fa031ece725f8a70b16ffa8025a34cd7241362f9499333880fabc
Dec 17, 2022 · 0.2 MB · Android API 24–33 · code 70
Imported from the F-Droid repository index.
- - Update to Target SDK 33
- - Fix some minor issues
- - Code cleanup
SHA-256 9e286ebb49f0d9b48847e92da1704baf77430d871e1b8b5418dde49ca1d92234
Will it run on your device?
60%
- Targets newer Android builds, so legacy devices may be excluded.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
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How to roll back to an earlier version
If the current release misbehaves, 3.8.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Particle Physics Simulator first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Particle Physics Simulator, and a listing is removed when the evidence for it stops holding up.
Get Particle Physics Simulator
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Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
bf47d0e803271cfcd512943f3072b453cca96d89ff91fb4fbcf6b28c91242314
Signing certificate
e4279dd0b8c39d486ac38ffc703a42f9fec70e9ad905931eacd1d348ec19cd8c
Permissions Required
Previous Versions
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