IMHO.

Single-player games like Koi Frenzy

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

Ranked picks

  1. 1
    Duplexity — Steam game cover

    Duplexity

    Single-player alternative to Koi Frenzy — playable solo, no multiplayer required. Shares Action and Indie with Koi Frenzy.

    Two paddles, one ball. Hit the targets and keep the game alive. A simple yet difficult game of coordination, patience and dexterity. Think you can reach 0... or lower?

    ActionIndieCasualSingle-playerSimilar games →
  2. 2
    Banana Game — Steam game cover

    Banana Game

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

    Drop colorful fruit into a lively physics puzzle, merge matching pairs into bigger fruit, trigger special banana recipes, and keep the pile below the danger line. Chase a higher score and create the shining Golden Banana!

    2026IndieCasual0.89 USDSingle-playerSimilar games →
  3. 3
    Fish Lab — Steam game cover

    Fish Lab

    Single-player alternative to Koi Frenzy — playable solo, no multiplayer required. Shares Action and Indie with Koi Frenzy.

    A short incremental game where you collect fish for your lab. Synced to music.

    2026ActionIndieCasual5.94 USDSingle-playerSimilar games →
  4. 4
    PlinkIdle — Steam game cover

    PlinkIdle

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

    PlinkIdle is a retro-inspired game with an idle/incremental spin on a classic ball drop mechanic. Falling balls, rare buffs, and steady upgrades unlock colorful, cozy stages and immersive environments.

    2026StrategyIndieCasualSingle-playerSimilar games →
  5. 5
    Gacha The Frog — Steam game cover

    Gacha The Frog

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

    Collect and play with cute frogs in a cozy physics simulation. Use the machine to get new frogs, play mini-games to improve the odds of getting legendary frogs and manage your space so you can keep playing. Can you complete the album?

    2027IndieCasualSingle-playerSimilar games →
  6. 6
    Trucktris — Steam game cover

    Trucktris

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

    The puzzle driven game, literally. Take control of tetromino shaped trucks and carefully navigate them onto the soon departing cargo ship. Then reverse them into position for satisfying shipments!

    2026IndieCasualSingle-playerSimilar games →
  7. 7
    Cutie Clicker — Steam game cover

    Cutie Clicker

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

    Plunged into a land of cuteness, you have to collect coins and become a cutie millionaire!

    2026StrategyIndieCasual2.70 USDSingle-playerSimilar games →
  8. 8
    Potion Drop — Steam game cover

    Potion Drop

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

    A refreshing twist on Match 3 where you search for sets of colorful potions to score points. Match as fast as you can to score high before the board overflows in Arcade mode, or relax and match at your own pace in Zen mode.

    IndieCasualSingle-playerSimilar games →
  9. 9
    Solitaire: Kingdom in Chains — Steam game cover

    Solitaire: Kingdom in Chains

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

    A dark fairytale solitaire adventure. Help Patch break Mordrake’s curse across 90 handcrafted levels, defeat bizarre bosses, wield magical powers, and unlock beautiful decks, card backs and worlds along the way.

    2026StrategyIndieCasual10.19 USDSingle-playerSimilar games →