Create and destroy on a scale you’ve never imagined!
User reviews: Very Positive (2,439 reviews) - 82% of the 2,439 user reviews for this game are positive.
Release Date: Apr 29, 2011

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Buy Universe Sandbox


Recommended By Curators

"One of the best, if not the best educational video game out there."

Recent updates View all (2)

August 24

Universe Sandbox ², the long awaited sequel, is now available on Steam

Universe Sandbox ² is now available now on Steam:

Universe Sandbox ² is in alpha and very much unfinished, but it already blows away the original version with improved physics, climate simulations, material properties, terraforming, and awesome collisions.

We welcome you to join us on this journey as we continue to add and improve the sequel into the future!

20 comments Read more


“This is where Universe Sandbox succeeds brilliantly: players experience godly power to create or destroy, while almost unavoidably learning something about the physical properties of our universe.”
87/100 – PC Gamer

“Using the vast range of variables and tools at your disposal you can create some enormously convoluted displays of physics, bending cosmic laws to your will...”
80% – bit-gamer

Universe Sandbox ² Now Avaliable

Universe Sandbox, originally released in 2008 and on Steam in 2011, is no longer in development. We encourage you to check out our long awated sequel, Universe Sandbox ², now on Steam Early Access!

About This Game

Create and destroy on a scale you've never imagined with the ultimate space simulator.

Harness the power to create black holes, collide galaxies, and manipulate gravity with just a few clicks. Inspired by the software astronomers use to unlock the mysteries of our universe, never before has astronomy been so interactive or so much fun.

Spawn a massive moon to tear apart Saturn’s rings or launch a rogue star to rip the planets from their orbits around our sun. After unleashing catastrophic destruction, create your own solar system and share it with friends.

Key Features

  • Interactive, real-time, n-body gravity simulator
  • Change any property of any object at any time
  • Real physics, real data, real units, real science
  • Compare the objects in any simulation with chart mode
  • Supports anaglyphic 3D glasses and 3D DLP televisions
  • Built in tutorials and step-by-step activities
  • Includes 70+ simulations both real and fantastical
  • Extensive editing and creation tools make it easy to build your own simulations

System Requirements

    • OS: Windows 7 / Vista / XP Service Pack 3
    • Processor: 1.5 GHz Processor
    • Memory: 1 GB RAM
    • Hard Disk Space: 250 MB
    • Video Card: DirectX 9 level graphics card
Helpful customer reviews
75 of 87 people (86%) found this review helpful
86 people found this review funny
0.9 hrs on record
Posted: June 13
I sped up time so fast, universe.exe has stopped working.
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43 of 47 people (91%) found this review helpful
60 people found this review funny
7.1 hrs on record
Posted: June 20
I created a sun and a earth orbiting it. I moved away from it by a bit and put down a tea cup and made some golf balls orbit it. I made a giant moon that the tea cup then orbited but then the moon went insane and ate the tea cup and my golf balls and then headed straight towards my sun and earth. I then quickly made the earth giant but it turned into a sun and ate the rest of my universe. 10/10 would cause the implosion of the universe again.
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16 of 17 people (94%) found this review helpful
1 person found this review funny
1,181.5 hrs on record
Posted: July 5
This is so cool. Just create and see what happens and then try again until you get the right balance to make your own solar system. Or you can just load up our solar system, set it at a speed you like and just zen out and watch it like a lava lamp. The achievements are amusing too. There is a lot to take in at first but it works really well for this sandbox simulation. Every time you click a button to see what it does you get to see something really interesting happen. 100% recommended.
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12 of 12 people (100%) found this review helpful
13 people found this review funny
2.0 hrs on record
Posted: September 23
Turns out if Mercury were half as massive as the Sun, they'd do a little dance with each other across the solar system, obliterating everything in their path and sending Earth hurtling into the frozen abyss.
10/10 will make important scientific discoveries again.
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4 of 4 people (100%) found this review helpful
3 people found this review funny
5.1 hrs on record
Posted: August 27
*Opens 'Death Star Orbiting Endor' Sim.*
Me: "Wut?...That's just a moon..wait...I see what they did there. that's no moon...."

Play some AFX (Aphex Twin) music over this and just blow up planets. Run them into each other. Send Earth rocking away from orbit. Even if you're not a big Sanbox fan, this is still an incredible simulator and learning tool. Make Uranus explode or turn it into a black hole. Buy it.
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