IMHO.

Single-player games like Astrobuilder

Below are 8 single-player Steam games similar to Astrobuilder, 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 Astrobuilder page.

Ranked picks

  1. 1
    Primage — Steam game cover

    Primage

    Single-player alternative to Astrobuilder — playable solo, no multiplayer required.

    As the leader of a Stone Age tribe, gather resources, develop your settlement and lead your people through the challenges of a world full of danger and mystery. Your survival skills, strategic planning and decision-making will be key in this battle for survival.

    2025ActionStrategyIndie4.19 USDSingle-playerSimilar games →
  2. 2
    KingForge — Steam game cover

    KingForge

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

    Build a living kingdom where villagers work and survive on their own. Assign roles, keep your people fed, automate your systems, and defend against growing threats. Your kingdom lives or falls by your decisions.

    2026StrategyIndieSimulation5.59 USDSingle-playerSimilar games →
  3. 3
    MMOS: MMO Simulator — Steam game cover

    MMOS: MMO Simulator

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

    The MMO management sim where you operate a living MMORPG. Paint zones, design classes, gear, quests and dungeons, and run the economy. Then thousands of autonomous adventurers move in, form guilds, run and rate your dungeons, and pay the subscriptions that fund you.

    2026IndieSimulationCasualSingle-playerSimilar games →
  4. 4
    Noble Legacy — Steam game cover

    Noble Legacy

    Single-player alternative to Astrobuilder — playable solo, no multiplayer required. Shares Simulation and Early Access with Astrobuilder.

    Noble Legacy is a medieval city-builder in which you rule the lands as a Noble. Build your kingdom, manage your people, defend your realm, and master a deep economy, alone or with friends in co-op, every decision is yours. What kind of ruler will you be?

    2025SimulationRPGEarly Access24.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Rogue Carrier — Steam game cover

    Rogue Carrier

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

    Lead a perilous expedition to study the mysteries of a sentient world in this roguelite colony management game. Build and manage a city atop an ocean-faring ship, and try to survive as the planet fights back!

    StrategySimulationSingle-playerSimilar games →
  6. 6
    Cloudlings — Steam game cover

    Cloudlings

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

    Cloudlings is a cute colony sim set amongst the clouds. Guide a small tribe of curious creatures as they build a floating village, merge drifting islands, manage resources, unlock upgrades, and uncover the mysteries hiding beyond the clouds.

    StrategyIndieSimulationSingle-playerSimilar games →
  7. 7
    My Drug Cartel — Steam game cover

    My Drug Cartel

    Single-player alternative to Astrobuilder — playable solo, no multiplayer required. Shares Simulation and Early Access with Astrobuilder.

    A drug plantation management game with basebuilding, strategy and combat elements. Expand your plantation, hire workers, and plan new smuggling routes. But be ready to face a heavy response by law enforcement by hiring guards, buying weapons and building defences.

    2025StrategySimulationEarly Access24.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Terra-7 — Steam game cover

    Terra-7

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

    A sci fi business colony simulation on an alien planet. Extract resources, create production pipelines, research new buildings and trade resources with the Earth as you manage the expectations of your employees and defend from the alien flora that inhabits this world.

    StrategySimulationSingle-playerSimilar games →