IMHO.

Single-player games like Catnip Cosmos

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

Ranked picks

  1. 1
    Mine or Burn — Steam game cover

    Mine or Burn

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

    Start with a basic mining ship and snowball into an asteroid-crushing powerhouse in this incremental bullet hell roguelite. Mine asteroids, battle rival miners, stack upgrades, create powerful builds, and survive escalating threats across dangerous star systems.

    2027ActionStrategyIndieSingle-playerSimilar games →
  2. 2
    Pit Wizard — Steam game cover

    Pit Wizard

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

    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 →
  3. 3
    Space Mine Raider — Steam game cover

    Space Mine Raider

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

    Space Mine Raider is a mining and bullet hell incremental game with a focus on strong power progression and combat. Warp in, mine resources, fight enemies and bosses, and extract with your spoils to upgrade your ship.

    2026ActionStrategyIndieSingle-playerSimilar games →
  4. 4
    I Only Moved My Mouse — Steam game cover

    I Only Moved My Mouse

    Single-player alternative to Catnip Cosmos — playable solo, no multiplayer required. Shares Casual with Catnip Cosmos.

    Your cursor is the blade. Never click — move the mouse and the sword cuts whatever its edge sweeps through. Take your hand off it and the blade fights on without you. Hold the core, clear endless waves, take an Awakening, then spend the shards on 100 sword tiers and a forge with no last level.

    ActionIndieRPGSingle-playerSimilar games →
  5. 5
    Planet No More — Steam game cover

    Planet No More

    Single-player alternative to Catnip Cosmos — playable solo, no multiplayer required. Shares Strategy and Casual with Catnip Cosmos.

    An arcade-incremental game where you DESTROY planets! Build a fleet, upgrade weapons, max out your skill tree and destroy your target slowly. You'll advance deep into the galaxy, strategically shattering planets to their cores to unlock the next celestial.

    2026StrategySimulationCasualSingle-playerSimilar games →
  6. 6
    Dyeversion — Steam game cover

    Dyeversion

    Single-player alternative to Catnip Cosmos — playable solo, no multiplayer required. Shares Strategy and Casual with Catnip Cosmos.

    Dyeversion is a color-routing tower defense. Drag liquid hoses from color sources to your towers, mix colors to forge powerful COMBO towers, and route your pipes around the enemy path. Battle dozens of levels, earn tokens, and unlock a deep skill tree.

    2026StrategyIndieCasualSingle-playerSimilar games →
  7. 7
    Harpooner — Steam game cover

    Harpooner

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

    Harpooner is an action-driven incremental fishing game where you hunt bizarre alien fish from a meteor crash. Grab your gear, grow stronger with every dive, and take down massive bosses to save Earth's ecosystem!

    2027ActionStrategyIndieSingle-playerSimilar games →
  8. 8
    Chief Miner — Steam game cover

    Chief Miner

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

    Chief Miner is a space mining simulation / incremental adventure about blowing up space rocks, becoming overpowered, and uncovering a universal mystery

    ActionStrategyIndieSingle-playerSimilar games →