IMHO.

Single-player games like Öoo

Below are 16 single-player Steam games similar to Öoo, 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 Öoo page.

Ranked picks

  1. 1
    Cats Catching Mice: The Black and White World — Steam game cover

    Cats Catching Mice: The Black and White World

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

    Explore in a black-and-white world. You'll encounter interesting enemies, feel smooth physics effects, freely combine props to solve fun puzzles, use powerful weapons, and defeat cool bosses.

    2025ActionIndieAdventure9.99 USDSingle-playerSimilar games →
  2. 2
    Looppip — Steam game cover

    Looppip

    Single-player alternative to Öoo — playable solo, no multiplayer required. Shares Indie and Adventure with Öoo.

    Master time control with Looppip in a challenging platformer puzzle game! Rewind 3 seconds into the past to overcome traps, save beehives, and restore the balance of nature.

    IndieAdventureCasualSingle-playerSimilar games →
  3. 3
    After Hue — Steam game cover

    After Hue

    Single-player alternative to Öoo — playable solo, no multiplayer required. Shares Indie and Adventure with Öoo.

    After Hue is a charming puzzle platformer starring an adorable chameleon on a grand adventure! Shift colors, phase through obstacles, and unravel the mysteries hidden within every hue!

    2026IndieAdventureCasualSingle-playerSimilar games →
  4. 4
    A Simple Expurriment — Steam game cover

    A Simple Expurriment

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

    A combat-free metroidvania with puzzles, stealth and genetically modified kittens. Help a cat mom rescue her abducted children by doing typical, not-so-typical and definitely atypical cat things: run walls up and down, turn to liquid and rearrange parts of the alien ship like pieces of a puzzle.

    2026ActionIndieAdventureSingle-playerSimilar games →
  5. 5
    ElecHead — Steam game cover

    ElecHead

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

    ⚡+🤖+🧩

    2021ActionIndieAdventure9.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    UpBRELLA — Steam game cover

    UpBRELLA

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

    A witch's adventure with nothing but an umbrella. Upbrella is a puzzle platformer where every trick you discover reopens the world in a new way, wrapped in cozy pixel art and a wordless friendship between a girl and a strange little creature.

    2027ActionIndieAdventureSingle-playerSimilar games →
  7. 7
    Divemensions — Steam game cover

    Divemensions

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

    Divemensions is a 2D Puzzle Platformer.... just that the levels are not actually 2D! In this game you'll need to move between the layers of the world to overcome various challenges! Get ready to solve puzzles by understanding the 3D layout of the levels or create your own with the level editor!

    ActionIndieCasualSingle-playerSimilar games →
  8. 8
    InOut — Steam game cover

    InOut

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

    A minimalist puzzle platformer where each level is more than they seem. Change your perspective on levels to discover new areas. Explore the world to unearth its hidden secrets.

    2026ActionIndieAdventureSingle-playerSimilar games →
  9. 9
    Subnautica — Steam game cover

    Subnautica

    Single-player alternative to Öoo — playable solo, no multiplayer required. Shares Indie and Adventure with Öoo.

    Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.

    2018IndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Pacific Drive — Steam game cover

    Pacific Drive

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

    Face the supernatural dangers of the Olympic Exclusion Zone with a car as your only lifeline in this driving survival adventure! Scavenge resources, load up your trusty station wagon, and drive like hell to make it through alive.

    2024ActionIndieAdventure9.89 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    Project Zomboid — Steam game cover

    Project Zomboid

    Single-player alternative to Öoo — playable solo, no multiplayer required. Shares Indie with Öoo.

    Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite..

    2013IndieSimulationRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  12. 12
    DEATH STRANDING — Steam game cover

    DEATH STRANDING

    Single-player alternative to Öoo — playable solo, no multiplayer required. Shares Action and Adventure with Öoo.

    From legendary game creator Hideo Kojima comes an all-new, genre-defying experience. Sam Bridges must brave a world utterly transformed by the Death Stranding. Carrying the disconnected remnants of our future in his hands, he embarks on a journey to reconnect the shattered world one step at a time.

    2020ActionAdventureDeck VerifiedSingle-playerSimilar games →
  13. 13
    Valheim — Steam game cover

    Valheim

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

    A collaborative exploration and survival game for 1-10 players, set in a procedurally generated afterlife inspired by Viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!

    2026ActionIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  14. 14
    Metroidvania — Steam game cover

    Metroidvania

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

    Explore a dark pixel-art metroidvania filled with fast-paced combat, challenging bosses, hidden secrets, and rewarding exploration as you unlock new paths through a mysterious world.

    2026ActionIndieAdventure3.99 USDSingle-playerSimilar games →
  15. 15
    Portal 2 — Steam game cover

    Portal 2

    Single-player alternative to Öoo — playable solo, no multiplayer required. Shares Action and Adventure with Öoo.

    The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

    2011ActionAdventure9.99 USDDeck VerifiedSingle-playerSimilar games →
  16. 16
    Toki Tori 2+ — Steam game cover

    Toki Tori 2+

    Single-player alternative to Öoo — playable solo, no multiplayer required. Shares Indie and Adventure with Öoo.

    Toki Tori 2+ may look cute, but it’s a challenging puzzle adventure game. Whistle and stomp are the only moves you need to solve increasingly complex puzzles, as you go anywhere, anytime on a lush forest island.

    2013IndieAdventureCasual14.99 USDDeck VerifiedSingle-playerSimilar games →