IMHO.

Single-player games like Fish Companions

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

Ranked picks

  1. 1
    Desktop Pet: DonEatFish — Steam game cover

    Desktop Pet: DonEatFish

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

    A cozy cat on your desktop while you goof off. Idle fish, crack chests, dress up—turn your desk corner into a wholesome little nook. Come adopt an adorable kitty.

    2026IndieSimulationFree To PlayFreeSingle-playerSimilar games →
  2. 2
    My Beautiful Aquarium — Steam game cover

    My Beautiful Aquarium

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

    A fish tank that lives on your screen. Real species, and every fish is an individual you can name. In Cozy mode nothing can die, so you can leave it running all day. Challenge mode is proper fishkeeping: water types, breeding, sickness, mistakes. Play it, or just let it swim.

    2027IndieSimulationCasualSingle-playerSimilar games →
  3. 3
    Peacequarium — Steam game cover

    Peacequarium

    Single-player alternative to Fish Companions — playable solo, no multiplayer required. Shares Simulation and Casual with Fish Companions.

    An aquarium sim you can keep anywhere on your screen while you do other things. Buy endless upgrades, apply trait modifiers, and complete your collection of rare, epic and legendary fish! Buy today or give a gift to someone!

    2025SimulationCasual6.99 USDSingle-playerSimilar games →
  4. 4
    Soggy Beans — Steam game cover

    Soggy Beans

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

    Fish will come, fish will go. Take photos, collect beans, decorate your seascape, then relax or do other things while your friends swim by in this calming side-idler.

    2026IndieSimulationCasual9.89 USDSingle-playerSimilar games →
  5. 5
    Cozy Littlequarium — Steam game cover

    Cozy Littlequarium

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

    Cozy Littlequarium is a relaxing aquarium simulator that sits at the bottom of your screen! Take care, breed them, collect and decorate!

    2025IndieSimulationCasual5.24 USDSingle-playerSimilar games →
  6. 6
    Cast n Chill — Steam game cover

    Cast n Chill

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

    Cast n Chill is a relaxing fishing game where you explore serene lakes, rivers, and oceans. Catch rare fish, upgrade your gear and reel in legendary catches - all with your loyal companion by your side.

    2025SportsIndieSimulation14.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Tiny Fishing Club — Steam game cover

    Tiny Fishing Club

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

    A cozy desktop fishing companion you can leave beside your work. Fish solo or hang out online with friends, catch rare fish, customize your tiny angler, collect pets, and grow your little club.

    2026IndieSimulationCasualSingle-playerSimilar games →
  8. 8
    Chief Endurance Officer — Steam game cover

    Chief Endurance Officer

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

    Nothing beats a company-paid holiday! Perfect attendance earned you an unlimited vacation—100% savings on hotels and restaurants, because there are none. Give up and crawl back to work, or survive the wild. A cozy desktop idle survival game. Endure your way to the top.

    2026IndieSimulationCasualSingle-playerSimilar games →