Solar System Sim

Solar System Sim

Space & Planet Physics Sandbox

4.1K ratings
1034 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • April 12, 2023
  • August 25, 2026

Features

Solar System Sim video #1 for iPhone
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Solar System Sim screenshot #10 for iPhone
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About

Simulate and explore celestial bodies within our solar system and beyond. Create your own solar systems, experiment with gravity and physics, and observe orbital mechanics in action.

Explore planets and moons
Visit nearby stars
Create custom solar systems
Gravity and physics simulation
Recalculate orbits
Newton's laws implementation
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What users say

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What's New in Solar System Sim

0.401

August 25, 2026

- Climate panel: ice caps, sea level, vegetation and volcanism - You can now flood Earth completely and its city lights will go out when drowned or frozen. - Heat map of local surface temperatures - Impacts melt ice and scorch the ground - 3D tsunamis adapt to environment - Glowing lava lakes, even on cold worlds - Correct °C/°F for your region - Bug fixes - Save/load fixes

More
4

In-App Purchases

$2.99

HD Mars

High-Res texture and height maps for Mars

User reviews

Game ruining bugs

The game itself is good I love the game however, there is a few bugs that absolutely ruin the game. One of the weird things that have happened is I pressed the un pause button once and the screen went black and I couldn’t see anything ruining the save and progress. Another bug is I was in the process of making a solar system when all the sudden when I load the save again the star is suddenly gone and multiple light years away. I don’t know why these bugs are happening but fixing them would be greatly appreciated. Ty for the good game.
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Crashes

This crashed a looot why this copy of solar smash crashes

Solar system sim

Very fun too play when you are bored but a little unrealistic

Rieon

I love your game but can you make it more realistic and can you make flashback of how a solar system was born, but I love your game just make it more realistic and add more stuff

Make custom systems have 2048x speed!

The limit 64x just feels to slow, please make it faster for custom systems. I do understand that orbits may be inaccurate but it would be nice to have that 2048x option open! Please enable!🙏

Developer apps

User experience

🐞

Reported Bugs

5 issues

Planets/moons disappearing after saving and loading

Bug

Bright flashes and screen distortions

Bug

Planets/objects getting stuck inside stars

Bug

Crashes when colliding or editing certain objects

Bug

Inconsistent orbital mechanics and moons ejecting from planets

Bug

Requested Features

10 requests

Add more galaxy and nebula textures

Feature

Implement realistic supernova effects

Feature

Allow customization of planet atmospheres and terrain

Feature

Add binary star systems and rogue planets

Feature

Introduce a galaxy maker and collision feature

Feature

Implement a reverse time lapse option

Feature

Add more speed options (128x, 256x, etc.)

Feature

Introduce a population counter and life simulation for planets

Feature

Allow custom city lights and vegetation on planets

Feature

Add a Roche limit feature to observe tidal disruption

Feature

FAQ

What can I do in this solar system simulator?

You can explore existing celestial bodies in our solar system, including planets and moons, and even visit nearby stars. The app also allows you to create your own solar systems by adding or modifying celestial bodies.

How does the simulation work?

The simulation acts as a gravity and physics sandbox. It recalculates the orbits of celestial bodies based on Newton's laws of motion and gravity, providing a realistic physics-based experience.

Is this app free to use?

The app is free to download and use, but it does contain in-app purchases and advertisements. These may offer additional features or enhance the user experience.

What kind of celestial bodies can I simulate?

You can explore and simulate planets and moons within our solar system, as well as visit nearby stars and observe their positions in the Milky Way. You can also add new bodies or modify existing ones to create unique solar systems.