IMHO.

Single-player games like Kopernicus: Incremental Suffering

Below are 9 single-player Steam games similar to Kopernicus: Incremental Suffering, 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 Kopernicus: Incremental Suffering page.

Ranked picks

  1. 1
    Fortress Full Fury — Steam game cover

    Fortress Full Fury

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action and Indie with Kopernicus: Incremental Suffering.

    An incremental bullet-heaven where every run feeds permanent upgrades. Defend your fortress, harvest crystals, and climb a 600+ node tech tree until your scrappy defenses become a screen-clearing arsenal against absurd swarms.

    ActionIndieSingle-playerSimilar games →
  2. 2
    LeadFall — Steam game cover

    LeadFall

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action and Indie with Kopernicus: Incremental Suffering.

    LeadFall is a fast-paced top-down action roguelike where you survive chaotic waves of food-themed enemies, collect powerful card upgrades, and create broken weapon builds in short, replayable runs.

    2026ActionIndieCasualSingle-playerSimilar games →
  3. 3
    Mafia Hero: Streets of Survival — Steam game cover

    Mafia Hero: Streets of Survival

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action and Indie with Kopernicus: Incremental Suffering.

    Survivors-like game with ONLINE CO-OP (1–4 PLAYERS). The man who had always played by the rules was dead.! Mafia Hero: Streets of Survival is an online co-op auto-shooter roguelite for up to 4 players. Build your criminal empire, craft powerful builds, and battle massive bosses.

    2026ActionStrategyIndie14.99 USDSingle-playerSimilar games →
  4. 4
    Burning Skies — Steam game cover

    Burning Skies

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action and Indie with Kopernicus: Incremental Suffering.

    Burning Skies is a frantic roguelite bullet hell. Join the resistance and assemble the ultimate warjet, shoot take down giant bosses and avoid many dangers to destroy the tyrants who are ruling the world.

    2027ActionIndieCasualSingle-playerSimilar games →
  5. 5
    Gundrobe: an Incremental Gun Builder — Steam game cover

    Gundrobe: an Incremental Gun Builder

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action and Indie with Kopernicus: Incremental Suffering.

    Build your gun piece by piece, evolve its parts, unlock new technology and push your progression further with every prestige. Create increasingly powerful and absurd weapons, from clever builds to guns capable of firing thousands of bullets.

    ActionIndieSimulationSingle-playerSimilar games →
  6. 6
    Loot Frog — Steam game cover

    Loot Frog

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action and Indie with Kopernicus: Incremental Suffering.

    Loot Frog is an incremental action bullet hell about breaking pots, collecting gems, and fighting an evil cult. Upgrade your gear, unlock new abilities, explore diverse biomes, and push deeper into increasingly chaotic battles.

    2026ActionIndieAdventure5.85 USDSingle-playerSimilar games →
  7. 7
    Pit Wizard — Steam game cover

    Pit Wizard

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action and Indie with Kopernicus: Incremental Suffering.

    Pit Wizard is a short top-down shooter with incremental progression where you play as a wizard custodian. Jump into magical pits, clean up hordes of dangerous enemies, and mine rare resources while developing two massive skill trees.

    2026ActionIndieSingle-playerSimilar games →
  8. 8
    Mighty Miners — Steam game cover

    Mighty Miners

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action with Kopernicus: Incremental Suffering.

    Mighty Miners is a ridiculously replayable incremental mining game. Go as deep as you can on every run. Mine more and more Mightium, discover weapons, unlock a mighty cast of characters, harvest resources, and complete tasks to become completely unstoppable.

    ActionSingle-playerSimilar games →
  9. 9
    Bad Cheese — Steam game cover

    Bad Cheese

    Single-player alternative to Kopernicus: Incremental Suffering — playable solo, no multiplayer required. Shares Action with Kopernicus: Incremental Suffering.

    Bad Cheese is a psychological horror inspired by the eerie charm of 1920s animation. Step into the tiny paws of a mouse spending the weekend at home with a dysfunctional Dad while Mom's away. Be on your best behavior and KEEP DADDY HAPPY.

    2025ActionAdventure12.99 USDDeck VerifiedSingle-playerSimilar games →