Free Kerbal Space Program AlternativesTop Simulation Games and other similar apps like Kerbal Space Program

The best free alternative to Kerbal Space Program is Orbiter, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Kerbal Space Program and six of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Kerbal Space Program are Juno: New Origins, Spaceflight Simulator, Kitten Space Agency and Pioneer Scout Plus.

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Kerbal Space Program alternatives are mainly Simulation Gamess, but if you're looking for Sandbox Games or Exploration Games you can filter on that. Other popular filters include Free. These are just examples - use the filter bar below to find more specific alternatives to Kerbal Space Program.
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Alternatives list

  1. Orbiter icon
     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.

    12 Orbiter alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Windows
     
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    2
  2. Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and download more from the community. Share your creations online.

    10 Juno: New Origins alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • iPad
    • Steam
    • Humble Bundle
    • Android Tablet
     
  3. Built from the ground up with the spirit of discovery, Kitten Space Agency invites players and supporters to join a community pushing the boundaries of what a spaceflight program can be.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Windows
     
  4. Pioneer icon
     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
     
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    1
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