IMHO.

Single-player games like The Spatials

Below are 11 single-player Steam games similar to The Spatials, 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 The Spatials page.

Ranked picks

  1. 1
    The Spatials: Galactology — Steam game cover

    The Spatials: Galactology

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    The Spatials are back with Galactology! Design, build and protect your colony station from the many enemies you will make while exploring the galaxy and exploding their homeworlds.

    2018StrategyIndieSimulation2.59 USDSingle-playerSimilar games →
  2. 2
    Spacebase DF-9 — Steam game cover

    Spacebase DF-9

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    In Spacebase DF-9, you'll build a home among the stars for a motley population of humans and aliens as they go about their daily lives. Mine asteroids, discover derelicts, and deal with the tribulations of galactic resettlement in Earth's distant future.

    2014StrategyIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Oxygen Not Included — Steam game cover

    Oxygen Not Included

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.

    2019IndieSimulation24.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Space Haven — Steam game cover

    Space Haven

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.

    2020StrategyIndieSimulation24.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Planetbase — Steam game cover

    Planetbase

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.

    2015StrategyIndieSimulation14.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Surviving Mars — Steam game cover

    Surviving Mars

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Simulation with The Spatials.

    There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.

    2018StrategySimulationSingle-playerSimilar games →
  7. 7
    Kenshi — Steam game cover

    Kenshi

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors.

    2018ActionStrategyIndie29.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Maia — Steam game cover

    Maia

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    Maia is a colony building game set in the not-so-distant future. Your colonists make planetfall on a hostile world and you must ensure their survival and their safety, constructing their off-world habitat from almost nothing and sheltering them from a dangerous, often deadly environment.

    2018StrategyIndieSimulation24.99 USDSingle-playerSimilar games →
  9. 9
    RimWorld — Steam game cover

    RimWorld

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and Simulation with The Spatials.

    A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.

    2018StrategyIndieSimulation34.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Deep Space — Steam game cover

    Deep Space

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Indie and RPG with The Spatials.

    You are entrusted with the role of one of the elite captains, put on a high-tech mech suit suitable for travel into space and go on an exciting journey.

    2020ActionIndieAdventure3.99 USDSingle-playerSimilar games →
  11. 11
    NIMBY Rails — Steam game cover

    NIMBY Rails

    Single-player alternative to The Spatials — playable solo, no multiplayer required. Shares Simulation with The Spatials.

    Design and run your own railroads for the real world. Solve global transportation dilemmas. Unleash your inner railway engineer and transit policy manager.

    2021SimulationEarly Access15.19 USDDeck PlayableSingle-playerSimilar games →