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. Includes VR support for HTC Vive and Oculus Rift+Touch.
Recent Reviews:
Very Positive (113) - 92% of the 113 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (4,521) - 93% of the 4,521 user reviews for this game are positive.
Release Date:
Aug 24, 2015
Developer:
Publisher:

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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 or Oculus Rift+Touch.

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 more recent update, and we are working on adding more features and functionality to match the amount of control and fine-tuning that is possible in the desktop version.”

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

“The price will probably increase in the future.”

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.

We are actively working on Steam Workshop support, which will open up doors to community-created simulations. Further down the line, we plan to also support sharing of custom models and textures.”
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Buy Universe Sandbox ²

 

Recent updates View all (51)

July 19

20 Earth Languages & 12 Jovian Moons | Update 21



Universe Sandbox now supports 20 languages, with support for adding even more in the future (see below for a current list of supported languages and let us know if there’s a language you’d like to see). We are proud to make Universe Sandbox more accessible to people from all over the world.

Change language:
Home > Settings > General > Selected Language

While most of the text has been translated via Google Translate, we’ve had significant contributions from our amazing community over the past month that have made improvements to many of the languages. We hope our community continues to help translate as Universe Sandbox grows and evolves.

Translate:
Home > Help Translate (learn more)

Currently supported languages (as of July 19):
  • Chinese, Simplified
  • Chinese, Traditional
  • Czech
  • Danish
  • Dutch
  • Finnish
  • French
  • German
  • Hungarian
  • Japanese
  • Korean
  • Norwegian
  • Polish
  • Portuguese
  • Russian
  • Spanish
  • Swedish
  • Thai
  • Turkish
Is there a language you want to see? Do you have feedback on the translation process? Let us know on our forum or in-game via Home > Send Feedback.

12 Jovian Moons
This update also includes the 12 recently discovered moons of Jupiter. Initially discovered in March 2017, they have now all been observed several times and their orbits are confirmed. Jupiter now has a total of 79 known moons.

See Jupiter's new moons:
Home > Open > Core > Jupiter's New Moons

They are all very small, around 1 to 2 miles wide. One of the moons is unique, as it orbits in the opposite direction of all of the other moons it is near. “It’s basically driving down the highway in the wrong direction,” said Scott Sheppard, one of the astronomers who made the discovery.

Check out a full list of What's New in Update 21

Also: We’re still testing sharing simulations on Steam Workshop. Learn how you can try it out and help us test
22 comments Read more

June 18

Help Us Test Steam Workshop



July 19: Support for other languages has been officially released in Update 21! Thanks for everyone’s help with testing this feature and contributing to translations. Learn more about 20 Earth Languages & 12 Jovian Moons | Update 21

We are still testing our next big feature:
  • Steam Workshop (Sharing Simulations)

Please help us test! Jump into the Community Test build and start sharing and exploring Workshop simulations.

Steam Workshop


Share simulations to Steam Workshop:
Home > Save > Share to Steam Workshop

Browse & open Steam Workshop simulations:
Home > Workshop

Sharing simulations now will help us test this feature and also help us build up a big catalog of sims on Steam Workshop, so we can show off the creativity of the Universe Sandbox community from day one of the official Workshop release.

As part of our redesigned save dialog and support for Steam Workshop, simulations now support custom descriptions that appear when the simulation loads. And even cooler? These descriptions support the same BBCode formatting that Steam does. Two differences: It also supports images with [img] URL [/img ], and even animated GIFs! But it does not support the noparse tags.

Opt Into the Community Test Build
  • Right-click on the game title in your Steam Library
  • Click on ‘Properties’
  • Select the ‘Betas’ tab
  • Set the dropdown menu to 'community-test'
  • Close the Properties window
  • Steam will now update Universe Sandbox ² to the Community Test build
  • Once updated, launch Universe Sandbox ²
Please note: We’ve done extensive testing on this feature, but this is a Community Test build for a reason. There are still changes we have planned, and you may encounter bugs. If you do, please let us know on our forum or in-game via Home > Send Feedback.

Thanks for testing and for your patience!

See What's New | Community Tests for a list of changes
39 comments Read more
See all discussions

Report bugs and leave feedback for this game on the discussion boards

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 includes the desktop version and a VR mode with support for the HTC Vive & Oculus Rift+Touch.

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 that leave behind molten craters.

Create Solar Systems

Start with a star, then add a planet. Spruce it up with moons, rings, comets, or even a black hole.

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...

Supernova a Star

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

Explore Historical Events

Ride along with the Juno and New Horizons spacecraft, or view a total solar eclipse.

Throw Planets in VR

Just grab and fling.

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:
    • OS: Windows Vista SP1+
    • Processor: 1.6GHz dual-core
    • Memory: 1 GB RAM
    • Graphics: 512 MB Video Memory, Shader Model 4.0
    • DirectX: Version 10
    • Storage: 2 GB available space
    Recommended:
    • Processor: 2.6GHz quad-core
    • Memory: 4 GB RAM
    • Graphics: 1 GB Video Memory
    • DirectX: Version 10
    • Additional Notes: For VR, see recommendations from Vive or Oculus
    Minimum:
    • OS: OS X 10.9+
    • Processor: 1.6GHz dual core
    • Memory: 1 GB RAM
    • Graphics: OpenGL, 512 MB Video Memory
    • Storage: 1 GB available space
    Minimum:
    • OS: Ubuntu 12.04+, SteamOS+
    • Processor: 1.6GHz dual core
    • Memory: 1 GB RAM
    • Graphics: OpenGL, 512 MB Video Memory
    • Storage: 1 GB available space
    • Additional Notes: Officially supports the same Linux distributions supported by Unity (currently Ubuntu 12.04+). Other distributions can and will work, but they may require a bit of configuration and tinkering.
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