If Update 34.1 does not download automatically, follow these update instructions. If you don’t own Universe Sandbox, you can buy it via our website.

2024 Total Solar Eclipse

Watch the Moon completely block out the Sun across parts of Mexico, the United States, and Canada in our simulation of the April 8, 2024 total solar eclipse. Check it out under:
Home > Open > Total Solar Eclipse on April 8, 2024

Learn more about this eclipse.

Chaotic Collisional Aftermath

Immerse yourself in chaos as gas clouds expand and rock fragments collide in the aftermath of collisions. We’ve updated our particle system to preserve performance while simulating fuller, more realistic collisions.

Before
After

Custom Habitable Range

Customize the habitable temperature and atmospheric pressure of your planets for more unique vegetation and city lights coverage.

More Highlights

Explore the chaos of the fictional planetary system of Trisolaris from The Three-Body Problem. The number of objects gravitationally interacting makes it impossible to predict the planet’s orbits, called the three-body problem.

All gasses in a planet’s atmosphere now contribute to its color and opacity instead of just the 4 gasses with the most mass.

Before – Additional sulfur dioxide does not make the atmosphere more opaque or tint it orange.
After – Additional sulfur dioxide makes the atmosphere more opaque and tints it orange.

An object’s material composition now just shows the list of materials currently in the object by default. We’ve also added an Add New Materials button.

Before
After

Use the new Hide Dust Clouds toggle to look at planet surfaces and see collisions through thick clouds of dust.

The object properties panel has been greatly optimized, making it faster to open and switch objects.

Completely swap one material on a planet for another with one tap. What would Earth look like if you switched out all the water for methane?

This update is brought to you by our completely new build system, which automatically creates different versions of Universe Sandbox whenever one of our team members updates the code it’s built on, allowing us to test and release new features even faster.

Listen to your favorite Universe Sandbox track over and over again by looping them under
Settings > Audio > Music Controls > Loop Track

Check out the full list of What’s New in Update 34.1

Please report any issues on our Steam forum, on Discord, or in-game via Home > Send Feedback.