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, Oculus Rift+Touch, and Windows Mixed Reality.
Recent Reviews:
Very Positive (62) - 87% of the 62 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (4,844) - 93% of the 4,844 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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Recent updates View all (56)

November 15

The Universe Just Got Bigger: Workshop Support | Update 22



Create and share your simulations and explore the creativity of the Universe Sandbox community!

Home > Workshop
Home > Save > Share to Steam Workshop



Use the new custom sim descriptions to detail the lore of your sci-fi worlds. Or discuss the reality behind the scientific phenomena in your simulations.

This update also includes changes to the interface with new tools for manipulating Property values plus styling improvements throughout. There’s a new autosave system to prevent accidental loss of work, and as always, there are lots of smaller improvements and bug fixes. See the full list of What's New

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

Notes:
1) Workshop only supports simulations at this time. In the future, we hope to add support for custom textures and models.
2) As of this update, Universe Sandbox no longer supports DirectX 9 or 32-bit operating systems. Users can run the last compatible version by selecting “*directx9-32bit” via Steam Betas (learn how). For more information on our decision to end support for DirectX 9 & 32-bit systems, please see our announcement from earlier this year.
22 comments Read more

October 4

The Extremes of Our Solar System | Update 21.3


This small update features a new Parker Solar Probe model and new simulations exploring extremes in our Solar System:

Skim past the Sun with the Parker Solar Probe. The probe was launched in August and now has 24 trips around the Sun planned for its 7-year mission. Each year its orbit will take it closer to the Sun as its instruments capture data that will help us better understand our resident star. Its closest approach will bring it within 8.86 solar radii, or 3.83 million miles, of the Sun’s surface, more than 7 times closer than any previous spacecraft.

Home > Open > The Parker Solar Probe
Home > Open > The Parker Solar Probe’s Closest Approach to the Sun
Add > Objects > Parker Solar Probe

And ride along with New Horizons as it continues through the far reaches of our Solar System past Ultima Thule. After the probe’s flyby of Pluto and its moons in 2015, NASA selected the Kuiper Belt object Ultima Thule as its next target. When New Horizons makes its closest approach on January 1, 2019, Ultima Thule will become the farthest object ever visited by a spacecraft.

Home > Open > New Horizons Ultima Thule Encounter in 2019



Plus: what if our Sun was replaced with one of the largest known stars in the universe, the red supergiant Betelgeuse?

Home > Open > Solar System with Betelgeuse Instead of the Sun

This update also includes an improvement to the accuracy of positions for moons and other objects in the Solar System Now & Real Time simulation, plus a few other smaller improvements and bug fixes.

We are still making slow but steady progress on our larger feature updates, like Steam Workshop, lasers, and Planet Grids. Thanks for everyone's patience!


Check out a full list of What's New in Update 21.3

Please report any issues on our forum or in-game via Home > Send Feedback.
22 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 includes the desktop version and a VR mode with support for the HTC Vive, Oculus Rift+Touch, and Windows Mixed Reality.

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 Your Own 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
  • Stellar 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 7 SP1+
    • Processor: 1.6GHz dual-core
    • Memory: 1 GB RAM
    • Graphics: 512 MB Video Memory, Shader Model 4.0
    • DirectX: Version 11
    • Storage: 2 GB available space
    Recommended:
    • Processor: 2.6GHz quad-core
    • Memory: 4 GB RAM
    • Graphics: 1 GB Video Memory
    • DirectX: Version 11
    • Additional Notes: For VR, see recommendations from your headset manufacturer
    Minimum:
    • OS: macOS 10.11+
    • 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.

What Curators Say

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