IMHO.

Single-player games like Kerbal Space Program 2

Below are 15 single-player Steam games similar to Kerbal Space Program 2, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Kerbal Space Program 2 page.

Ranked picks

  1. 1
    Kerbal Space Program — Steam game cover

    Kerbal Space Program

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.

    In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.

    2015IndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Meco Rocket Simulator — Steam game cover

    Meco Rocket Simulator

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Simulation and Early Access with Kerbal Space Program 2.

    Meco Rocket Simulator is a realistic physics game where you play as an underpaid rocket scientist working for Mecodyne to design and test rocket engines without regard for your safety.

    2025SimulationEarly Access39.69 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Lunar Odyssey — Steam game cover

    Lunar Odyssey

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Simulation and Early Access with Kerbal Space Program 2.

    Don your xEMU Spacesuit, explore the Orontius Crater, and Lunar Module in an immersive first-person VR experience with out of this world accuracy and interaction. Follow real-life procedures, launch the Apollo-era Lunar Module, play Space Golf, and experience the moon like never before.

    2022SimulationEarly AccessFreeSingle-playerSimilar games →
  4. 4
    Rocket Science — Steam game cover

    Rocket Science

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Simulation and Early Access with Kerbal Space Program 2.

    Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.

    2020StrategySimulationEarly Access19.99 USDSingle-playerSimilar games →
  5. 5
    Archean — Steam game cover

    Archean

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.

    Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.

    2024IndieSimulationEarly Access19.99 USDSingle-playerSimilar games →
  6. 6
    Take On Mars — Steam game cover

    Take On Mars

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Simulation with Kerbal Space Program 2.

    Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.

    2017Simulation9.99 USDSingle-playerSimilar games →
  7. 7
    Spacefleet: Heat Death — Steam game cover

    Spacefleet: Heat Death

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Simulation and Early Access with Kerbal Space Program 2.

    In the 23rd century, Earth orbit is flooded with debris from constant warfare. Countries, megacorporations, and mercenaries are fighting for control. Take contracts, build your warfleets, and dominate the Earth-Luna system in this realism-focused strategy RPG!

    2026StrategySimulationRPG11.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Juno: New Origins — Steam game cover

    Juno: New Origins

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 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 make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode.

    2023IndieSimulation19.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Factorio — Steam game cover

    Factorio

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.

    Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.

    2020StrategyIndieSimulation35.00 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Satisfactory — Steam game cover

    Satisfactory

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.

    Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

    2024StrategyIndieAdventure39.99 USDDeck VerifiedSingle-playerSimilar games →
  11. 11
    Dwarf Fortress — Steam game cover

    Dwarf Fortress

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.

    Build a fortress and try to help your dwarves survive against a deeply generated world. Keep your dwarves happy, grow their community and beware of digging too deeply. The deepest, most intricate simulation of a world that's ever been created.

    2022StrategyIndieSimulation23.99 USDDeck PlayableSingle-playerSimilar games →
  12. 12
    FTL: Faster Than Light — Steam game cover

    FTL: Faster Than Light

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.

    This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.

    2012StrategyIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  13. 13
    Nuclear Throne — Steam game cover

    Nuclear Throne

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie with Kerbal Space Program 2.

    Nuclear Throne is a post-apocalyptic roguelike-like top-down shooter. Not 'the final hope of humanity' post-apocalyptic, but 'humanity is extinct and mutants and monsters now roam the world' post-apocalyptic. Can you reach the Nuclear Throne?

    2015ActionIndieRPG11.99 USDDeck VerifiedSingle-playerSimilar games →
  14. 14
    Toribash — Steam game cover

    Toribash

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie with Kerbal Space Program 2.

    Toribash is an innovative free-to-play online turn-based fighting game where you’re able to design your own moves. Complete control over character's body, hundreds of game mods and bloody mess with full body dismemberment - you've never been able to annihilate your enemies like that before!

    2014ActionStrategyIndieFreeDeck PlayableSingle-playerSimilar games →
  15. 15
    Rocket League® — Steam game cover

    Rocket League®

    Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie with Kerbal Space Program 2.

    Rocket League is a high-powered hybrid of arcade-style soccer and vehicular mayhem with easy-to-understand controls and fluid, physics-driven competition. Rocket League includes casual and competitive Online Matches, a fully-featured offline Season Mode, special “Mutators” that let you change the rules entirely, hockey and...

    2015ActionSportsIndieDeck VerifiedSingle-playerSimilar games →