IMHO.

Single-player games like Horripilant

Below are 9 single-player Steam games similar to Horripilant, 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 Horripilant page.

Ranked picks

  1. 1
    Tower Wizard — Steam game cover

    Tower Wizard

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

    Help a wizard build and upgrade a wizard tower in this incremental game! Use the tower to study magic, summon spirits, create buildings, and influence the world.

    2025StrategyIndieSimulation2.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Anty Crush — Steam game cover

    Anty Crush

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

    Lead a tiny ant colony through a giant candy world. Crush sweets, collect crumbs, unlock upgrades, grow your colony, and help the Queen evolve in this cozy incremental game.

    IndieSimulationCasualSingle-playerSimilar games →
  3. 3
    Pure Idle — Steam game cover

    Pure Idle

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

    Become the right hand of the Creator in the search for lost perfection. Collect the light of billions of stars, guiding them into the heart of a black hole to find the one — Pure Idle. Technologies, production chains, and a long journey to the most beautiful star in the universe.

    2026StrategyIndieSimulation0.79 USDSingle-playerSimilar games →
  4. 4
    Loop Alchemist — Steam game cover

    Loop Alchemist

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

    You wake up in an unknown land. Again. Use the experience from every past life and your ever-growing knowledge of alchemy to extend each life through a robust alchemical system. Explore, break through and uncover all the world has to offer in this minimalist RPG distilled down to its purest form

    StrategyIndieAdventureSingle-playerSimilar games →
  5. 5
    My Fishing Desktop — Steam game cover

    My Fishing Desktop

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

    🎣 Unwind with this cozy idle fishing game. Cast your line, collect unique fish, and customize your character with fun hats. Add relaxing ambient sounds like rain or jungle vibes to set the mood. Perfect for relaxing in the background while you work or chill. 🎣

    2025SportsIndieAdventure2.99 USDSingle-playerSimilar games →
  6. 6
    Don't kill the fish — Steam game cover

    Don't kill the fish

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

    Bring home a digital fish, care for your new aquatic buddy in a cozy corner of your screen, and remember, DON'T KILL THE FISH!

    2025IndieSimulationCasual1.99 USDSingle-playerSimilar games →
  7. 7
    A Game About Feeding A Black Hole — Steam game cover

    A Game About Feeding A Black Hole

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

    A short incremental game about feeding a Black Hole matter by destroying Asteroids, Planets, and Stars.

    2025IndieCasual6.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    IDLE BOSS RUSH — Steam game cover

    IDLE BOSS RUSH

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

    Slay giant bosses and turn the hollow wasteland into the almighty kingdom! Endlessly rewarding incremental game where you collect fountains of rare loot, unleash crazy combos and watch the monsters fall under your knees. Boss Rush that keeps on going when you're gone!

    2025StrategyIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Realm Grinder — Steam game cover

    Realm Grinder

    Single-player alternative to Horripilant — playable solo, no multiplayer required. Shares RPG with Horripilant.

    Grow your realm, build alliances, and explore one of the deepest idle RPGs ever!

    2017StrategyRPGFree To PlayFreeDeck VerifiedSingle-playerSimilar games →