IMHO.

Single-player games like ArcaneOutpost

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

Ranked picks

  1. 1
    Circle TD:Defence War — Steam game cover

    Circle TD:Defence War

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

    A tower defense game.In the wave after wave of enemy attacks like a tide, constantly configure defense tower ties, player talents, props and equipment, build a powerful defense position, and eliminate the enemy before they fill the map!

    2024StrategyIndie5.99 USDSingle-playerSimilar games →
  2. 2
    Beyond The Walls — Steam game cover

    Beyond The Walls

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

    Immerse yourself in a 3D tower defense game set in a medieval realm. Build towers with unique effects and strategically manage your town to amass resources. Master the elements and devise cunning strategies to triumph in this captivating fusion of defense and city management.

    2024ActionStrategyIndie6.99 USDSingle-playerSimilar games →
  3. 3
    Gregg: Tower Defence — Steam game cover

    Gregg: Tower Defence

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

    Play as Gregg. Gather, build and destroy your slimy enemies in this thrilling pixel art tower defence!

    2024ActionStrategy3.99 USDSingle-playerSimilar games →
  4. 4
    Castle Craft — Steam game cover

    Castle Craft

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

    Will your castle survive the relentless onslaught, or collapse under pressure? Build, manage resources, and outsmart your foes in a world where everything can be destroyed. Use strategy and creativity to turn the chaos into your greatest advantage!

    2026ActionStrategySimulation19.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Age of Darkness: Final Stand — Steam game cover

    Age of Darkness: Final Stand

    Single-player alternative to ArcaneOutpost — playable solo, no multiplayer required. Shares Strategy with ArcaneOutpost.

    Age of Darkness: Final Stand is a dark fantasy survival RTS where you must illuminate, build and defend humanity’s last bastion against hordes of Nightmares. Set in the remnants of a kingdom consumed by a deadly fog, you decide. Will you hide in the light? Or take back your world.

    2025Strategy27.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    IDUN - Frontline Survival — Steam game cover

    IDUN - Frontline Survival

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

    A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!

    2025ActionStrategyIndie14.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Thronefall — Steam game cover

    Thronefall

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

    A minimalist game about building and defending your little kingdom.

    2024ActionStrategyIndie12.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Freaking Meatbags — Steam game cover

    Freaking Meatbags

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

    Land on a planet, pick up some rocks, leave before the solar system explodes. Oh, and don't die in the nightly robot attacks! Freaking Meatbags is a humorous real-time strategy game that's all about building a base, mixing meatbag DNA, then convincing those dolts to help you gather resources.

    2015ActionStrategyIndie9.99 USDSingle-playerSimilar games →