IMHO.

Single-player games like Koikoi

Below are 11 single-player Steam games similar to Koikoi, 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 Koikoi page.

Ranked picks

  1. 1
    Darkest Dungeon® — Steam game cover

    Darkest Dungeon®

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

    Darkest Dungeon is a challenging gothic roguelike turn-based RPG about the psychological stresses of adventuring. Recruit, train, and lead a team of flawed heroes against unimaginable horrors, stress, disease, and the ever-encroaching dark. Can you keep your heroes together when all hope is lost?

    2016StrategyIndieRPG24.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Torchlight II — Steam game cover

    Torchlight II

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

    The adventure continues in Torchlight II! An Action RPG filled with epic battles, bountiful treasure, and a fully randomized world. Bring your friends along for the journey with online and LAN multiplayer.

    2012ActionIndieAdventure3.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    To the Moon — Steam game cover

    To the Moon

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

    A story-driven experience about two doctors traversing backwards through a dying man's memories to artificially fulfill his last wish.

    2012IndieAdventureRPG9.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Crypt of the NecroDancer — Steam game cover

    Crypt of the NecroDancer

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

    Crypt of the NecroDancer is an award winning hardcore roguelike rhythm game. Move to the music and deliver beatdowns to the beat! Groove to the epic Danny Baranowsky soundtrack, or select songs from your own MP3 collection!

    2015ActionIndieRPG2.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Bastion — Steam game cover

    Bastion

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

    Discover the secrets of the Calamity, a surreal catastrophe that shattered the world to pieces.

    2011ActionIndieRPG14.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Kenshi — Steam game cover

    Kenshi

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

    A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors.

    2018ActionStrategyIndie29.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Transistor — Steam game cover

    Transistor

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

    Discover the world of Transistor, a sci-fi-themed action RPG from the creators of Bastion.

    2014ActionIndieRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Salt and Sanctuary — Steam game cover

    Salt and Sanctuary

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

    Explore a haunting, punishing island in this stylized 2D action RPG. Salt and Sanctuary combines fast and brutal 2D combat with richly developed RPG mechanics in a cursed realm of forgotten cities, blood-soaked dungeons, and desecrated monuments.

    2016ActionIndieRPG17.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Undertale — Steam game cover

    Undertale

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

    UNDERTALE! The RPG game where you don't have to destroy anyone.

    2015IndieRPG9.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    MOTHER — Steam game cover

    MOTHER

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

    MOTHER is a first-person psychological horror game about protecting your children while descending deeper & deeper into madness. Defend them at all costs. Be careful, because their death is permanent!

    2020Indie2.99 USDSingle-playerSimilar games →
  11. 11
    OFF — Steam game cover

    OFF

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

    “I’m the Batter. I’ve been entrusted with a sacred mission.” -- One of the most influential RPGs of the last 20 years is finally coming to Steam. Take control of the Batter as he seeks to purify an uncanny and hopeless world haunted by specters, guided by a cryptic, grinning cat called The Judge.

    2025RPG14.99 USDDeck VerifiedSingle-playerSimilar games →