Create & destroy on an unimaginable scale... with a space simulator that merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet. Now includes Vive VR support.
User reviews:
Recent:
Very Positive (152 reviews) - 94% of the 152 user reviews in the last 30 days are positive.
Overall:
Very Positive (3,365 reviews) - 94% of the 3,365 user reviews for this game are positive.
Release Date: Aug 24, 2015

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Universe Sandbox ² is in active development, but it's already a fully-featured, stable, and smooth-running space simulator. And it now officially supports VR with an HTC Vive.

We're proud of what we have to show, and we know many fans are eager to explore and experiment with the universe.

We're constantly working on features, improvements, and bug fixes, and we release frequent updates.”

Approximately how long will this game be in Early Access?

“It's hard to give an accurate estimate. Building a universe simulator is a job that's never complete.

We have a long list of features and improvements that we're very excited about implementing, and which will keep us busy for a long time to come.”

How is the full version planned to differ from the Early Access version?

“Some of the features and improvements we'd like to add:
  • Space megastructures
  • Basic life simulation
  • More dynamic terraforming & improved climate simulation
  • Better collisions on a wider range of scales
  • Missions and objectives
  • Steam Workshop support
  • Achievements
  • Language localization
  • Improved human scale mode
  • More intuitive VR experience with features equal to desktop version

What is the current state of the Early Access version?

“Universe Sandbox ² has been in development for almost five years, and for the past two years, we've had users pouring hours into testing, exploring, and enjoying the sandbox. It is already a fully-featured, stable, and smooth-running simulator.

We've fixed most of the serious issues and have made a lot of progress on optimizations for a range of hardware. Because it is a large-scale sandbox, though, it does have its share of bugs and could use polish in some areas.

The VR version of Universe Sandbox ² is a relatively recent update, and we are working to add many of the features and optimizations already found in the latest desktop version. Our next VR update should address this. After that, these two versions will be merged and shouldn't require separate updates.”

Will the game be priced differently during and after Early Access?

“We have no plans for changing the base price of Universe Sandbox ² at this time.”

How are you planning on involving the Community in your development process?

“We actively seek community feedback from the in-game feedback as well as from our forums and social media.

Community feedback helps us prioritize our long list of planned features and focus on fixing the worst bugs and issues. We make an effort to address every issue that comes our way.

We also add simulations and features based on community requests, like the recent addition of custom-colored planets, and an index for the likelihood of life on planets. We also recently added a tool for easily recording and sharing GIFs on social media.

In the future, we plan to integrate Steam Workshop for user-generated content, like custom models, and for easily sharing simulations.”
Read more

Buy Universe Sandbox ²

 

Recent updates View all (29)

December 24, 2016

GIF Contest Winners!



Grand Prize

Earth: death by neutron star!
Submitted by astalemarshmallow

Earth being eaten by a neutron star. What's not to like? Great framing, a great sample of simulation features in Universe Sandbox ², and an overall impressive and tasteful display of destruction. This gets the grand prize of a $50 Steam gift card!


 
Runner-Up
A near-miss between Mars and Earth makes the oceans boil away. A very unique experiment that deserves a $25 Steam gift card.


Submitted by @Valareos


 
Honorable Mentions
The following GIFs may not have won the top prizes, but we enjoyed them too much to not mention them. These users will be getting a couple Universe Sandbox ² Steam codes for their friends and family.



Best Pandering
We love when our fans love Universe Sandbox ².


Submitted by DashingElektron



Submitted by @robloxiscool191



Best What-If
So that's what would happen if Jupiter had Saturn's rings and Saturn came back for revenge. The more you know...


Submitted by @Goldenknight_01



Best Trip Around the Drain
Turns out there's a lot in common between space and your sink.


Submitted by @BestPotatoGamin



Submitted by No. 60 Neodymium



Submitted by DirtyKaya


 
Most Artistic
A beautiful and abstract cosmic dance.


Submitted by Flingdagger
 


Most Terrifying
This surface-cam perspective from Earth of a slowly expanding supernova is making us anxious. In a good way!


Submitted by DeadpanGod3


Thanks again to everyone who submitted!

Thank you to everyone who submitted to our Universe Sandbox ² GIF contest! There were a lot of great submissions, and we loved seeing all the different ways our fans use Universe Sandbox ² to explore and experiment with the universe.

If you're a winner, we'll be reaching out to you soon to send you your prize. If you're not a winner, there's always next time! Stay tuned for future contests.

39 comments Read more

December 21, 2016

Alpha 19.4 | Juno & the Return of Craters



Run Steam to update.

Alpha 19.4 introduces a brand new model for the Juno spacecraft, which you can find in Add > Objects > Juno. Juno entered into orbit around Jupiter this past July. Its goal is to understand the gas giant’s origin and evolution.

This update also fixes two of the bigger issues introduced in Alpha 19:

  • Displacement mapping (3D craters) works again
  • City lights once again turn off after collisions and high temperatures

Check out the full list of What's New.

For the latest Universe Sandbox ² news, follow us on Twitter and Facebook.

33 comments Read more
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About This Game

Universe Sandbox ² is a physics-based space simulator that allows you to create, destroy, and interact on an unimaginable scale.

It merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet. Universe Sandbox ² is the long awaited sequel to the original Universe Sandbox.

Universe Sandbox ² includes the desktop version and a new VR mode with support for the HTC Vive. This is a free, automatic update.

Simulate Gravity

N-body simulation at almost any speed using Newtonian mechanics. Real science, real physics, no supercomputer required.

Collide Planets & Stars

Epic, mind blowing collisions of massive planetary bodies.

Model Earth's Climate

Watch sea ice grow and recede with the seasons because of the tilt of the Earth: change the tilt and change the seasons. Or move the Earth farther from the Sun and freeze the entire planet.
Learn more...

Terraform Planets

Add carbon dioxide to a planet's atmosphere to heat it up. Then add water...

Deform Surfaces

Impact planets with asteroids and comets and leave behind massive, molten craters.

Supernova a Star

Make a star evolve by cranking up its age or mass, then watch a supernova unfold.

And more...

  • Material System - build planets out of Hydrogen, Iron, Rock, & Water
  • Solar flares & volatile trails
  • Procedurally generated stars & planets
  • Pulsars
  • Light-warping black holes
  • Dark matter

System Requirements

Windows
Mac OS X
SteamOS + Linux
    Minimum:
    • Processor: 1.6GHz dual-core
    • Memory: 1 GB RAM
    • Graphics: 512 MB Video Memory, Shader Model 3.0
    • DirectX: Version 9.0c
    • Storage: 1 GB available space
    Recommended:
    • Processor: 2.6GHz quad-core
    • Memory: 4 GB RAM
    • Graphics: 1 GB Video Memory
    • DirectX: Version 9.0c
    • Storage: 1 GB available space
    • Additional Notes: For VR mode, see recommended Vive requirements
    Minimum:
    • OS: OS X 10.9+
    • Processor: 1.6GHz dual core
    • Memory: 1 GB RAM
    • Graphics: OpenGL, 512 MB Video Memory, Shader Model 3.0
    • Storage: 1 GB available space
    Minimum:
    • Processor: 1.6GHz dual core
    • Memory: 1 GB RAM
    • Graphics: OpenGL, 512 MB Video Memory, Shader Model 3.0
    • Storage: 1 GB available space
Customer reviews Learn More
Recent:
Very Positive (152 reviews)
Overall:
Very Positive (3,365 reviews)
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