How to Download Universe Sandbox ²

1. Click on the Universe Sandbox ² download button below.
2. Choose "Install" to install the game on the windows steam client.
3. Follow the on-screen prompts
4. Let it download the Full Version.
5. Once a game is downloaded, use the Windows Steam Client to play the game.

=== Download Game ====

Download for pc →

This guide describes how to use Steam Proton to play and run Windows games on your Linux computer. Some games may not work or may break because Steam Proton is still at a very early stage.

1. Activating Steam Proton for Linux:
Proton is integrated into the Steam Client with "Steam Play." To activate proton, go into your steam client and click on Steam in the upper right corner. Then click on settings to open a new window. From here, click on the Steam Play button at the bottom of the panel. Click "Enable Steam Play for Supported Titles."

Alternatively: Go to Steam > Settings > Steam Play and turn on the "Enable Steam Play for Supported Titles" option.

Valve has tested and fixed some Steam titles and you will now be able to play most of them. However, if you want to go further and play titles that even Valve hasn't tested, toggle the "Enable Steam Play for all titles" option.

2. Choose a version
You should use the Steam Proton version recommended by Steam: 3.7-8. This is the most stable version of Steam Proton at the moment.

3. Restart your Steam
After you have successfully activated Steam Proton, click "OK" and Steam will ask you to restart it for the changes to take effect. Restart it. Your computer will now play all of steam's whitelisted games seamlessly.

4. Launch Stardew Valley on Linux:
Before you can use Steam Proton, you must first download the Stardew Valley Windows game from Steam. When you download Stardew Valley for the first time, you will notice that the download size is slightly larger than the size of the game.
This happens because Steam will download your chosen Steam Proton version with this game as well. After the download is complete, simply click the "Play" button.

Windows Pc Requirements

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

Linux Requirements

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.

No maximum requirements!!

Mac Requirements

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

No maximum requirements!!

Create and 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.

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 planets, stars, & galaxies
  
• Pulsars
  
• Light-warping black holes
  
• Original soundtrack by Macoubre
  
• Support for 20+ languages
  
• Share & explore simulations on Steam Workshop

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