IMHO.

Single-player games like Space Mechanic Simulator

Below are 15 single-player Steam games similar to Space Mechanic Simulator, 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 Space Mechanic Simulator page.

Ranked picks

  1. 1
    Astromental Incremental — Steam game cover

    Astromental Incremental

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    Mesmerizing incremental idle clicker game about space. When objects collide, you receive matter. Use this matter to unlock and upgrade objects in your star system. Use powerful Abilities. Dive into the Prestige system (Warp) with a wide Skill Tree, and discover new star systems with new bonuses.

    2026IndieSimulationCasualSingle-playerSimilar games →
  2. 2
    Archean — Steam game cover

    Archean

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    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 →
  3. 3
    Tin Can — Steam game cover

    Tin Can

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive?

    2022StrategyIndieSimulation19.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Kerbal Space Program — Steam game cover

    Kerbal Space Program

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    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 →
  5. 5
    Lunar Odyssey — Steam game cover

    Lunar Odyssey

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Simulation with Space Mechanic Simulator.

    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 →
  6. 6
    Take On Mars — Steam game cover

    Take On Mars

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Simulation with Space Mechanic Simulator.

    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
    SpaceEngine — Steam game cover

    SpaceEngine

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.

    2019IndieSimulationCasual20.99 USDSingle-playerSimilar games →
  8. 8
    Kerbal Space Program 2 — Steam game cover

    Kerbal Space Program 2

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.

    2023IndieSimulationEarly Access49.99 USDSingle-playerSimilar games →
  9. 9
    Car Mechanic Simulator VR — Steam game cover

    Car Mechanic Simulator VR

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Simulation with Space Mechanic Simulator.

    Become a real car mechanic in a very realistic, highly detailed simulator in a fully VR World. REPAIR, PAINT, TUNING with dozens of different tools and almost thousands of parts. BUY old vehicles, restore them, and SELL them at a profit. DRIVE and test all rebuilt cars.

    2021SimulationRacing19.99 USDSingle-playerSimilar games →
  10. 10
    303 Squadron: Battle of Britain — Steam game cover

    303 Squadron: Battle of Britain

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    The enemies are close, would you dare to join the Squadron? Tweak planes in a 1st person mechanic mode, set the clouds on fire in aerial fights sim and discover extra missions in an open world of RAF Base. Enjoy a gameplay based on a real history and become the Ace of Sky.

    2018ActionIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    Rally Mechanic Simulator — Steam game cover

    Rally Mechanic Simulator

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    Take your opportunity as a real Rally Mechanic. Overcome all the obstacles that the reckless racers throw at you - including unrepairable parts, time limitations and more. Take good care of your rally cars so that on the next special they will perform as good as if they came out of the factory.

    2025SportsIndieSimulation17.99 USDDeck PlayableSingle-playerSimilar games →
  12. 12
    Truck Mechanic: Dangerous Paths — Steam game cover

    Truck Mechanic: Dangerous Paths

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    Perform complex repairs and maintenance to become the ultimate truck mechanic. Get behind the wheel of your truck, throw your trusty tools in the back, and set out on an extreme adventure across the South American wilderness!

    2026ActionIndieSimulation19.99 USDSingle-playerSimilar games →
  13. 13
    Project Remedium — Steam game cover

    Project Remedium

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie with Space Mechanic Simulator.

    Project Remedium is a story-driven action shooter set inside a human body devastated by illness and bad circumstances. It's a post-apocalypse of sorts, a really tiny one, but for a nanobot named Nano+, the body is a whole world. So he is hell-bent on fixing it with his guns and a unique grapnel.

    2017ActionIndieAdventure9.99 USDSingle-playerSimilar games →
  14. 14
    Truck Mechanic: Dangerous Paths - Prologue — Steam game cover

    Truck Mechanic: Dangerous Paths - Prologue

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    Truck Mechanic: Dangerous Paths - Prologue allows you to experience the events taking place before the story campaign of the main game. You will have to explore, fix, drive, deliver, repair, load, think, avoid, beware - simply be a truck driver.

    2022ActionIndieAdventureFreeSingle-playerSimilar games →
  15. 15
    Truck Mechanic: Dangerous Paths - First Mile — Steam game cover

    Truck Mechanic: Dangerous Paths - First Mile

    Single-player alternative to Space Mechanic Simulator — playable solo, no multiplayer required. Shares Indie and Simulation with Space Mechanic Simulator.

    Every journey begins with a first mile. Transport cargo, repair your truck, and explore harsh South American landscapes in this free trial of Truck Mechanic: Dangerous Paths.

    2026ActionIndieAdventureFreeSingle-playerSimilar games →