Open Source Universe Sandbox Alternatives

The best open source alternative to Universe Sandbox is Celestia. If that doesn't suit you, our users have ranked more than 10 alternatives to Universe Sandbox and six of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Universe Sandbox are Gravity Simulator, Galaxy Engine, Orbiter and Cosmonium.

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Most Universe Sandbox alternatives are Simulation Games, but you can also narrow the list to Star Maps or Adventure Games. Other popular filters are Open Source, Sandbox Games and Simulation Games. You can also filter for EU-based alternatives if you prefer software from the European Union.
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Alternatives
Universe Sandbox alternatives page was last updated

Alternatives list

  1. Celestia icon

    Celestia

     137 likes

    Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.

    32 Celestia alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • iPad
    • PortableApps.com
    • visionOS
    • Online
    • BSD
    • F-Droid
    • US flagUnited States
    A view of the Solar System from afar, with the orbits and labels of planets and dwarf planets visible. The constellation Orion can be seen on the right side of the image.
    Good alternative?
     
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    6
  2. G

    Gravity Simulator

     Like

    Gravity and space simulator that allows you to learn about the gravitational force and explore and learn about space. Change the value of the gravitational constant, increase the mass of Jupiter to see how doing so would affect the solar system and much, much more!

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    Good alternative?
     
  4. Galaxy Engine icon

    Galaxy Engine

     1 like

    Simulate the physics of the Universe on a large scale and create stunning visuals. Play with intergalactic interactions, smash planets together and even create the Big Bang itself!.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Windows
    • Linux
    • SteamOS
    • Steam
    Galaxy Engine screenshot 1
    Good alternative?
     
  5. Orbiter icon

    Orbiter

     8 likes

    Orbiter is a realistic 3D real-time space flight simulator program.

    Fed up with space games that insult your intelligence and violate every law of physics? Orbiter is a simulator that gives you an idea what space flight really feels like - today and in the not so distant future.

    13 Orbiter alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Windows
    Orbiter screenshot 1
    Good alternative?
     
  6. Cosmonium icon

    Cosmonium

     7 likes

    Cosmonium is a 3D astronomy and space exploration program. With Cosmonium you can navigate in our solar system and discover all the planets and their moons.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Io transiting over Jupiter
    Good alternative?
     
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    1
  8. Pioneer icon

    Pioneer

     12 likes

    Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of star systems in the game. You can land on planets, slingshot past gas giants, and burn yourself to a crisp flying...

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • Linux
    Mars and Phobos (no shaders)
    Good alternative?
     
6 of 6 Universe Sandbox alternatives