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 (82) - 90% of the 82 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (5,327) - 93% of the 5,327 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 (58)

January 7

2018 Retrospective



Happy New Year!

Before we take a look at what’s coming to Universe Sandbox this year, let’s take a look back at our achievements in 2018, by the numbers:


1
new team member: welcome, Jules, our new sound designer!


2
the # that was dropped from the logo.

That's right, now it's just Universe Sandbox. We’ll have more to say about this soon!





8
# of significant updates to Universe Sandbox.
  • They Put a Car in Space, We Upgraded Our Engine | Update 20.5 | March 7, 2018
  • More Super Supernovae | Update 20.6 | March 15, 2018
  • This Hyperbolic Update Will Change Your Life | Update 20.7 | May 24, 2018
  • 20 Earth Languages & 12 Jovian Moons | Update 21 | July 19, 2018
  • Windows Mixed Reality Support | Update 21.2 | August 02, 2018
  • The Extremes of Our Solar System | Update 21.3 | October 04, 2018
  • The Universe Just Got Bigger: Steam Workshop Support | Update 22 | November 15, 2018
  • Far Out | Update 22.1 | December 20, 2018

12
# of Universe Sandbox team members that fit into one house in Spain for a week.




21
# of new simulations.
  • 2 Parker Solar Probe sims
  • 2 Tesla Roadster sims
  • 2 sims of Jupiter's newly discovered moons
  • New Horizons Ultima Thule Encounter in 2019
  • 2018 VG18: The Most Distant Object in the Solar System
  • 2015 TG387: A Goblin at the Edge of the Solar System
  • Voyagers 1 & 2 Start 2019 Outside the Solar System
  • Ultimate Engineered System
  • Solar System with No Sun
  • Kepler 10
  • Kepler 47 Binary System
  • Alpha Centauri Triple System
  • Saturn & Earth
  • Retrograde Asteroid 2015 BZ509
  • Interstellar Object with a Hyperbolic Trajectory
  • Solar System with Betelgeuse instead of the Sun
  • Conservation of Momentum lesson
  • Gravitational Force lesson
This just includes the simulations that we added, though. Scroll down for a much larger number of simulations that our community has shared on Workshop!




22
# of languages now supported in Universe Sandbox.




26
# of pages of release notes for Universe Sandbox updates in 2018.

Check out What’s New.


325
# of bugs fixed.

You know what they say, fixing a bug a day keeps the QA away. Just kidding, we can’t -- and don’t want to -- stop our awesome QA, Mat, from hunting down bugs in Universe Sandbox.

Not all of these bug fixes were notable for releases, as there are many bugs that are discovered and fixed while we’re still doing behind-the-scenes work with improving Universe Sandbox. We look forward to squashing hundreds more this year!


479
Highest # of concurrent users in Universe Sandbox in 2018 (happened on the week of August 6).

This is the fifth highest of all time for us.


1,114
# of positive Steam reviews of Universe Sandbox written in 2018.

All this love for Universe Sandbox really warms our cold, spaceborne hearts. <3




2,420
# of simulations shared on Steam Workshop.

That means there are literally thousands of simulations featuring alien planets and systems, recently discovered exoplanets, confounding scientific phenomena, worlds from movies, books, and other video games, and of course bizarre bugs (or are they features?), created by you, the community, now shared on Steam Workshop. We look forward to seeing this treasure trove continue to grow.


7,160
# of copies of Universe Sandbox donated for charity.

This year we donated copies to StackUp for distribution to military personnel, donated proceeds to the National Center for Science Education, provided copies to schools and educational organizations, and donated copies for various fundraisers for people doing awesome things, like all the folks at CosmoQuest.


12,694
# of objects added to the Universe Sandbox database.

That’s 11,973 new Solar System objects, 387 new exoplanets, 310 new stars, 21 new moons, 2 new human-scale objects, and 1 new galaxy.


95,736
# of messages sent on Slack.

We’re a remote team, so other than some video chats and comments on GitHub, all of our conversations happen on Slack. It’s what makes our collaboration on Universe Sandbox possible!


>100,000
# of copies sold on Steam and other platforms.

Or, on average, one copy sold every five minutes -- comfortably keeping pace with last year!


4,506,463
# of views of Markiplier's two recent videos featuring Universe Sandbox.

These were the most watched Universe Sandbox videos on YouTube made this year. And this brings the total number of views of Markiplier's Universe Sandbox videos to... 35,522,196. Granted, 24 million of those views are on the so-catchy-you-really-will-regret-being-reminded-of-it Space is Cool remix, but we'll take some credit for providing a bit of inspiration and a nice backdrop for Markiplier's auto-tuned cries of love for space. Many thanks to Markiplier for helping spread the word!

Can You Blow Up a Black Hole

1000 Ways to Destroy Earth




>6,000,000
# of supernovae in Universe Sandbox.

According to our analytics, y'all have exploded more than 6 million stars. Needless to say, that's an accomplishment.




What's Next?
Our big features this year were Localization (support for other languages) and Steam Workshop. A lot of time and effort went into these features, and we think they’re a pretty big deal -- Localization opens up Universe Sandbox for the first time to people all over the world, and support for Workshop has made it super easy to check out an ever increasing catalogue of simulations made by people pushing the limits of Universe Sandbox.

But we also recognize that these features did not change any aspects of the simulation itself. And the simulation is the heart of Universe Sandbox. While we made a number of some smaller improvements and fixes related to the simulation, we unfortunately ran into continual issues with two big updates that we had hoped to get out this year -- Surface Grids / Lasers and a physics rewrite. Surface Grids will allow for more detailed surface simulation, including localized temperatures, which makes possible things like heating from lasers. The physics rewrite should greatly increase physics performance and pave the way for additional physics-related features, like megastructures.

We hope to have more news about Surface Grids soon, along with some insight into some of the obstacles we’ve faced with its development. We also continue to work on other projects like new star audio, a new tutorial system, a VR interface overhaul, new galaxies, a mobile version, and continual improvements to the overall experience.

We thank all of you for your continued support of Universe Sandbox! This year we remain committed to improving Universe Sandbox as we develop and plan new features, upgrades, and fixes for 2019 and the years to come.

- The Universe Sandbox Team
Dan, Chris, Georg, Alexander, Jenn, Jonathan, Dave, Rappo, Mat, Jacob, Erika, Jules, & Jared
30 comments Read more

December 20, 2018

Far Out | Update 22.1


Feb 11: 22.1.2 is a small patch to fix an issue that caused the new physics system (NativeComputation) to occasionally fail on launch and revert to the older, slower system (ManagedComputation).

In the image above, the orbit stretching to the bottom left is 2018 VG18, the most distant known object in the Solar System. The orbit shown here is a preliminary estimate; more accurate data will be available only after years of observation.

Update 22.1 is a small update that adds a few new sims in addition to dozens of improvements and bug fixes.

Check out these sims featuring incredibly distant Solar System objects, including the recently announced 2018 VG18, nicknamed “Farout”:
Home > Open > 2018 VG18: The Most Distant Object in the Solar System
Home > Open > 2015 TG387: A Goblin at the Edge of the Solar System
Home > Open > Voyagers 1 & 2 Start 2019 Outside the Solar System

Don’t forget to check out New Horizons’ upcoming flyby of the most distant Solar System object ever visited, scheduled for January 1, 2019:
Home > Open > New Horizons Ultima Thule Encounter in 2019

And here are some highlights from the long list of improvements and fixes:
  • Smarter autosaves
  • Improvements & fixes for opening, saving, & sharing sims
  • Better randomized properties for randomly created objects
  • Fixes for issues with frozen fragments & missing orbit previews
  • Restored visuals for explosions & fragments
Happy holidays! Stay tuned after the New Year for a recap of this past year and a look at what we’ve got in store for 2019.

Check out a full list of What's New in Update 22.1

Please report any issues on our forum or in-game via Home > Send Feedback.
20 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+ (64-bit*)
    • 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
    • Additional Notes: * A 64-bit version of Windows is required for Universe Sandbox updates after November 2018. Users on 32-bit systems can still run previous versions. Learn more
    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.

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