IMHO.

Single-player games like Objects in Space

Below are 13 single-player Steam games similar to Objects in Space, 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 Objects in Space page.

Ranked picks

  1. 1
    Evochron Legacy SE — Steam game cover

    Evochron Legacy SE

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

    Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.

    2016IndieSimulation24.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Starship EVO — Steam game cover

    Starship EVO

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Indie with Objects in Space.

    Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.

    2020ActionIndieAdventure24.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Satellite Reign — Steam game cover

    Satellite Reign

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Strategy with Objects in Space.

    Satellite Reign is a real-time, class-based strategy game, set in an open-world cyberpunk city. You command a group of 4 agents through rain-soaked, neon-lit streets, where the law is the will of mega-corporations.

    2015ActionStrategyIndie29.99 USDSingle-playerSimilar games →
  4. 4
    Avorion — Steam game cover

    Avorion

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Indie with Objects in Space.

    A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.

    2020ActionIndieSimulation24.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Rebel Galaxy Outlaw — Steam game cover

    Rebel Galaxy Outlaw

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Indie with Objects in Space.

    Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.

    2020ActionIndieAdventure29.99 USDSingle-playerSimilar games →
  6. 6
    PULSAR: Lost Colony — Steam game cover

    PULSAR: Lost Colony

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Indie with Objects in Space.

    The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits

    2021ActionIndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Space Crew: Legendary Edition — Steam game cover

    Space Crew: Legendary Edition

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Strategy with Objects in Space.

    Time for your toughest mission yet! Recruit and train your crew to tackle the growing threat from alien and android armies as you defend Earth to become a Galactic Legend in Space Crew: Legendary Edition. All new content free to existing owners of Space Crew!

    2020ActionStrategyIndie2.39 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Astrox Imperium — Steam game cover

    Astrox Imperium

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Indie with Objects in Space.

    Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.

    2019ActionIndieAdventure14.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Ostranauts — Steam game cover

    Ostranauts

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

    Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.

    2020IndieSimulationRPG15.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Privateers — Steam game cover

    Privateers

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Strategy with Objects in Space.

    Privateers is a roguelite set in a fantasy nautical world. Players are set free into an archipelago where they can become a heroic navy captain or an evil pirate overlord depending on the choices that they make.

    2019ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  11. 11
    The Expanse — Steam game cover

    The Expanse

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Action and Adventure with Objects in Space.

    You and your team are elite killers. Its your job to help defend and protect earth and inform us of your findings. The South East Spaceport have reported nightmareish zombies. The most unsettling thing is that people have changed and will not stop eating each other.

    2021ActionAdventureCasual5.99 USDSingle-playerSimilar games →
  12. 12
    TownCraft — Steam game cover

    TownCraft

    Single-player alternative to Objects in Space — playable solo, no multiplayer required. Shares Strategy and Indie with Objects in Space.

    TownCraft is a chill-out crafting and city-building game. Instead of just surviving, you must turn your empty plot of land and its rarely-used road into a bustling town full of shops, workers and taverns.

    2015StrategyIndieSimulation9.99 USDSingle-playerSimilar games →
  13. 13
    Metrocide — Steam game cover

    Metrocide

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

    A relentless top-down single-player arcade stealth-shooter where you play as contract killer T.J. Trench, seeking to buy your way out of Metro City, the cyberpunk dystopia where everyone wants you dead.

    2014Indie12.99 USDSingle-playerSimilar games →