Open Source Space Games

All apps in Open Source Space Games category. Use the filters below to narrow down your search. 

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  1. EmptyEpsilon icon
     4 likes

    EmptyEpsilon places you in the roles of a spaceship's bridge officers, like those seen in Star Trek. While you can play EmptyEpsilon alone or with friends, the best experience involves 6 players working together on each ship.

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    • Android
    • Flathub
    • Flatpak
    Main screen view from a cruiser near a station being attacked by two enemy cruisers
    View of the helms officer's screen, which controls the ship's movement.
    EmptyEpsilon screenshot 2
    +3
    EmptyEpsilon screenshot 3
  2. Play with friends online to defend the planet! Longest time to first impact or longest time to 100% damage. You destroy asteroids by flying into them before they hit the planet!

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    • Flathub
    AstroImpact screenshot 1
    AstroImpact screenshot 1
    AstroImpact screenshot 2
    30 alternatives
  3. OutFly icon
     1 like

    OutFly is an atmospheric, open world, realistic 3D space game that throws you into the Rings of Jupiter with a self-sufficient sportswear space suit that will take you anywhere.

    Cost / License

    Application type

    Platforms

    • Linux
    • Windows
    • Flathub
    • Flatpak
    OutFly screenshot 1
    OutFly screenshot 1
    OutFly screenshot 2
    +3
    OutFly screenshot 3
    3 alternatives
  4. FreeOrion icon
     13 likes

    FreeOrion is a turn-based space empire and galactic conquest (4X) computer game being designed and built by the FreeOrion project. FreeOrion is inspired by the tradition of the Master of Orion games, but is not a clone or remake of that series or any other game.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    FreeOrion screenshot 1
    FreeOrion screenshot 1
    FreeOrion screenshot 2
    +4
    FreeOrion screenshot 3
    17 alternatives
  5. nInvaders icon
     Like

    nInvaders is a top-down arcade shooter reminiscent of the timeless classic Space Invaders, only brought to the Linux terminal.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    nInvaders screenshot 1
    8 alternatives
  6. Space Shooter X is a free browser-based arcade game where you battle enemy ships, survive endless waves, and defeat powerful bosses—all playable instantly online.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    Space Shooter X screenshot 1
    9 alternatives
  7. Cosmic Expansion is an exciting 2D space shooter where you take on the role of a seasoned space pilot tasked with destroying waves of enemy spaceships. Your goal is to defeat as many enemies as possible while avoiding enemy fire and mines.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • Linux
    • Flathub
    • Flatpak
    • Online
    Cosmic Expansion screenshot 1
    Cosmic Expansion screenshot 1
    Cosmic Expansion screenshot 2
    +2
    Cosmic Expansion screenshot 3
    8 alternatives