Create and destroy on a scale you’ve never imagined!
User reviews:
Very Positive (2,579 reviews) - 82% of the 2,579 user reviews for this game are positive.
Release Date: Apr 29, 2011

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“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
141 of 159 people (89%) found this review helpful
165 people found this review funny
3,292.3 hrs on record
Posted: February 23
Before my first contact with this game, I had a life, a wife, two kids, a nice house and also a car. Then, I met Universe Sandbox. This game was exactly what I needed to be happy. I am a new guy now. My undies are always brown as I am so addicted that I can't leave my chair. My house has trash and rotten food all over the floor because I can't stop playing this. I am not sure, but looks like my wife went away with my children and my car. I am all by myself now. No time to care about this, tho.
This is the most amazing sandbox game ever made. I am still looking for the sand, tho. 2,222 hours in and no sand yet. But I hope it will appear someday. I will keep looking for it.
It's the best game ever made. The whole mankind needs to know about this masterpiece. It's a huge universe building tool where you can even make planets crash and bring disaster and death everywhere. This is what I call bloody.
If you think that The Witcher 3 or Fallout 4 are the best games ever made, go learn a bit more about games and figure out that Universe Sandbox is the ultimate masterpiece. It's better than sex.
I still wonder where the sand is.

10/10 Would ruin my whole life again. No Regrets.

*It's not serious, in case you are wondering*

The game is pretty fun. Worth buying.
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66 of 77 people (86%) found this review helpful
85 people found this review funny
1.8 hrs on record
Posted: November 14, 2015
Made Earth have the same mass as the sun and the sun have the same mass as Earth, then put the sun in orbit around Earth. I now have a solar system where Earth is the center of the universe.

I also put a tiny Earth in orbit around the sun. Because reasons.
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38 of 48 people (79%) found this review helpful
57 people found this review funny
3.2 hrs on record
Posted: December 28, 2015
How do you write a well writen review? you PLANET... im sorry.
Was this review helpful? Yes No Funny
25 of 32 people (78%) found this review helpful
36 people found this review funny
5.4 hrs on record
Posted: November 15, 2015
Made Pluto the mass of 135090616493012973 Milky Ways and it sent the entire solar system flying out of the universe within a second.
The last humans alive now regret calling Pluto a dwarf planet.

10/10 would watch pluto get its revenge again

EDIT: Just did the same thing to Eris, except I made it about 12380189126391623912894398127630000000000000000000000000000000000000 million Milky Ways and it vapourized the universe in 0.00000000000000000012 of a second.
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22 of 31 people (71%) found this review helpful
2 people found this review funny
606.0 hrs on record
Posted: February 14
→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' ♛
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