Buy Universe Sandbox ²

STEAM Early Access

Windows, Mac, Linux

Buy above or directly from...


Steam Humble Store


Universe Sandbox ² is the latest and best version.

In development since 2011, it blows away the original version with improved physics, climate simulation, material properties, terraforming, and awesome collisions.


OS Logos

For Windows, Mac, and Linux.

Full system requirements


What do I get?

Buy Universe Sandbox ² now to get instant access to the Early Access version and a pre-order for the final release.


You'll receive a Steam code to add Universe Sandbox ² to your Steam Library. Steam is free and automatic updates mean you'll always have the latest version.



Universe Sandbox ² is still in active development. We're not done fixing bugs, implementing features, and adding polish. But there's already a lot to explore, and every update introduces improvements. There are many more to come.




If you're an educator, you can purchase Universe Sandbox ² at a discount through TeacherGaming. Instead of a Steam code, you will receive a standalone version of Universe Sandbox ².
















Universe Sandbox Legacy



Universe Sandbox Legacy, originally released in 2008, is no longer in development, but is still available for purchase.


Check the latest conversion rates



Universe Sandbox Legacy
Alternative Buying Options

Purchase through Amazon or Steam.


Educational Pricing

We no longer offer educational pricing for Universe Sandbox Legacy.


Purchase Universe Sandbox ², the latest version, at a discount through Teacher Gaming.


Commercial Use

Commercial organizations must obtain a commercial license to use Universe Sandbox or distribute created media. Please contact sales for more information.



More Buy & Licensing Info in the FAQ




Universe Sandbox Legacy



    no cost $9.95 USD
View Explore & view simulations Yes Yes
Time Control time Yes Yes
Chart Compare celestial bodies in chart mode limited


Add Add stars, planets, moons, & galaxies   Yes
Orbit Create your own simulation  


Rings Spawn rings around planets   Yes
Manipulate the force of gravity   Yes
Motion Easily create elliptical & binary orbits   Yes
Hand Move & rotate objects   Yes
Mass Edit object mass and other properties   Yes
Color Switch between multiple color modes   Yes
Center Change the center of motion   Yes
Diameter Show Lagrange points & habitable zones   Yes
Explode Explode anything!   Yes
3D Glasses Use 3D glasses for total immersion   Yes