Galaxy Formation app icon

Galaxy Formation

App depicting how stars, planets and galaxies are formed from dark matter.

Choitek · cmu.physics.galaxy

Not rated yet 10K+ downloads v1.6 45.5 MB Android 5.1+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v1.6 (6)
Updated
Jan 26, 2026 (8 months ago)
APK size
45.5 MB
Requires
Android 5.1+ (API 22)
CPU support
ARM 32-bit, ARM 64-bit
Graphics
OpenGL ES 2.0+
Category
Simulation (game)
Listed since
Dec 2, 2020 (at least)
Permissions
3
Website
github.com/johnchoi313/Galaxy-Formation-WebGL
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Galaxy Formation is a game by Choitek in the Simulation category, listed since at least December 2020. It includes native code for ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 3 permissions, none of them sensitive. The game can read the advertising ID that ad and analytics services use.

Description

From the listing uploaded by “appupdater”.

SUMMARY Galaxy Formation is a multi-platform educational app depicting how dark matter particles in the universe clump together over billions of years to form things like stars, planets and galaxies. The app does this with a lite, real-time simulation of thousands of n-body particles that are attracted by gravitational forces that form galaxies when combined. You can try out the live WebGL Browser version here: WebGL: https://johnchoi313.github.io/Galaxy-Formation-WebGL/ For better performance, you can download the native versions for each platform here: Android: https://github.com/johnchoi313/Galaxy-Formation-WebGL/blob/master/Other%20Platforms/Android.zip Mac: https://github.com/johnchoi313/Galaxy-Formation-WebGL/blob/master/Other%20Platforms/Mac.zip Windows: https://github.com/johnchoi313/Galaxy-Formation-WebGL/blob/master/Other%20Platforms/Windows.zip Linux: https://github.com/johnchoi313/Galaxy-Formation-WebGL/blob/master/Other%20Platforms/Linux.zip WebGL: https://github.com/johnchoi313/Galaxy-Formation-WebGL/blob/master/Other%20Platforms/WebGL.zip Get the full Galaxy Formation PDF documentation here: PDF: https://github.com/johnchoi313/Galaxy-Formation-WebGL/blob/master/Documentation/Galaxy-Formation-Documentation.pdf Find more screenshots here: Images: https://github.com/johnchoi313/Galaxy-Formation-WebGL/blob/master/Images And check out a full video playthrough here: Video: https://youtu.be/eDyD2gc5nng CREDITS: Lead Developer: John Choi. Learn more about me here: https://www.johnchoi313.com/ Inspired by Volker Springel's Gadget Simulation Code. Learn more about Gadget here: https://wwwmpa.mpa-garching.mpg.de/gadget/ Contributors Doyee Byun Luka Jelenak Patrick LaChance Peter Lee Raphael Segal Ruihao Ye Rupert Croft Additional Resources 3D Black Hole Shader - Mikołaj Bystrzyński Lite FPS Counter - OmniSAR Technologies Lunar Mobile Console – SpaceMadness FastMobileBloom – becomealittlegirl Simple LUT Adjuster - Jeff Johnson Float Music - Emily A. Sprague Spacescape - Alex Peterson UI Gradient – azixMcAze Made possible with generous support from the National Science Foundation.

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Jan 26, 2026.
  • Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.

Store checks and file details

  • Developer signature verified Jan 26, 2026
  • Validated against Google Play Jan 26, 2026
  • Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
  • Signing certificate (SHA-1)BE:AF:59:E4:62:F2:DB:A3:24:01:33:05:74:A6:37:E2:9C:DD:18:3B
  • File MD53422985efb45b61312e8295441c5187c
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (3)

Galaxy Formation requests 3 permissions, none of them sensitive.

Required hardware & features

Galaxy Formation APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Galaxy Formation APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 3422985efb45b61312e8295441c5187c.

Tags

More Simulation games