Design and simulate your own universe with realistic physics. Customize planets, stars, and moons, then watch them interact. Destroy solar systems with powerful tools or explore the life that develops in your creations.
Reviews of Pocket Galaxy are mostly positive: the game is rated 4.6/5 from 26K App Store ratings. What users like most: great game, amazing. Top complaints: difficult to get planets into stable orbits, planets often get pulled out of habitable zones. Summarized from real user reviews.
3.0
October 3, 2026
A refreshed store page. The game itself is unchanged in this update.
4 issues
Planets sometimes disappear or get stuck out of bounds
Wormholes cause app to become unresponsive
8 requests
Add more types of stars (red/blue dwarfs, supergiants, neutron stars, etc.)
Improve planet/moon orbiting mechanics
Pocket Galaxy: Gravity Sandbox is a 3D simulation game where you can create and customize your own universe. You have the power to design planets, stars, and moons, and then simulate their interactions using realistic physics rules. It allows for both creation and destruction on a cosmic scale.
Key features include unlimited customization of celestial bodies, a realistic gravity simulator for planet orbits, the ability to destroy entire solar systems with various tools, and an interactive journal to track your universe's development. It also boasts beautiful 3D graphics and procedural generation for endless creative options.
The application is free to download and play. While the description mentions in-app purchases, it does not specify what these purchases entail. The core functionality of creating and simulating your universe is available without immediate cost.
The application is designed for mobile devices. While specific operating system versions are not detailed, it is generally available for smartphones and tablets that support its 3D graphics and simulation requirements.
This game is ideal for anyone with an interest in astronomy, physics, or creative sandbox experiences. Players who enjoy building, experimenting with complex systems, and witnessing the outcomes of their designs, as well as those who like destructive simulation elements, will find this app engaging.
