IMHO.

Single-player games like Californium

Below are 15 single-player Steam games similar to Californium, 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 Californium page.

Ranked picks

  1. 1
    Looking For Fael — Steam game cover

    Looking For Fael

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

    Hello, this is Fael... Listen, this is going to sound strange, but... I think I'm lost in the apartment. Right now... I... I don't know where I am. Can you come and help me?

    2026IndieAdventureSingle-playerSimilar games →
  2. 2
    GlitchPets — Steam game cover

    GlitchPets

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

    This game is still in development: kind of a puzzle-platform-climb-story-adventure where your cartridge 'pets' glitches out from pet pee. You control a "debug" npc

    2018ActionIndieAdventure0.99 USDSingle-playerSimilar games →
  3. 3
    The Burrito Quest — Steam game cover

    The Burrito Quest

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

    Your burrito is missing. You have to find it. What are you waiting for?

    2023IndieAdventureCasual2.99 USDSingle-playerSimilar games →
  4. 4
    PALINGENESIS — Steam game cover

    PALINGENESIS

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

    A music-driven puzzle adventure where sound shapes the world. Solve mysteries, escape the Human Wheel, and experience the album by GRIGS in PALINGENESIS.

    2024StrategyIndieAdventure0.99 USDSingle-playerSimilar games →
  5. 5
    Intraquartz — Steam game cover

    Intraquartz

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

    INTRAQUARTZ is a multidimensional experimental maze puzzler where you control a microscopic mining rover inside extraterrestrial crystals.

    2022IndieSimulationCasual7.99 USDSingle-playerSimilar games →
  6. 6
    Manifold Garden — Steam game cover

    Manifold Garden

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

    Rediscover gravity and explore an Escher-esque world of impossible architecture. Witness infinity in first-person and master its rules to solve physics-defying puzzles. Cultivate a garden to open new paths forward, where an eternal expanse awaits.

    2020IndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    TRIP Steam Edition — Steam game cover

    TRIP Steam Edition

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

    Explore an avant-garde cubist dream, stimulate your visual senses and immerse yourself in a surreal TRIP. A visually tantalizing open world artware that culminates the player to relax and enjoy a safe enviroment for them to explore at their own pace. There are no objectives, no rules, just art.

    2015IndieAdventureSimulation0.99 USDSingle-playerSimilar games →
  8. 8
    Oneiros — Steam game cover

    Oneiros

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

    Will you be able to break the vicious circle? Can you regain control? Experience the surreal adventure filled with many puzzles and psychedelic visions.

    2020ActionIndieAdventure4.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    The Stanley Parable — Steam game cover

    The Stanley Parable

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

    The Stanley Parable is a first person exploration game. You will play as Stanley, and you will not play as Stanley. You will follow a story, you will not follow a story. You will have a choice, you will have no choice. The game will end, the game will never end.

    2013IndieAdventure14.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    The Witness — Steam game cover

    The Witness

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

    You wake up, alone, on a strange island full of puzzles that will challenge and surprise you.

    2016IndieAdventure39.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    SOMA — Steam game cover

    SOMA

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

    From the creators of Amnesia: The Dark Descent comes SOMA, a sci-fi horror game set below the waves of the Atlantic ocean. Struggle to survive a hostile world that will make you question your very existence.

    2015ActionIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  12. 12
    Paradise Killer — Steam game cover

    Paradise Killer

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

    Paradise Island, a world outside reality. There’s been a murder that only "investigation freak" Lady Love Dies can solve. Gather evidence and interrogate suspects in this open world adventure. You can accuse anyone, but you’ll have to prove your case in trial. It’s up to you to decide who’s guilty.

    2020IndieAdventureRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  13. 13
    The Stanley Parable: Ultra Deluxe — Steam game cover

    The Stanley Parable: Ultra Deluxe

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

    The Stanley Parable: Ultra Deluxe is an expanded re-imagining of 2013's The Stanley Parable. You will play as Stanley, and you will not play as Stanley. You will make a choice, and you will become powerless. You are not here to win. The Stanley Parable is a game that plays you.

    2022IndieAdventureCasual24.99 USDDeck VerifiedSingle-playerSimilar games →
  14. 14
    Labyrinth City: Pierre the Maze Detective — Steam game cover

    Labyrinth City: Pierre the Maze Detective

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

    Adapted from the bestselling children’s book series Pierre The Maze Detective, play as Pierre in this adventure/puzzle game and recover the stolen Maze Stone. Journey through breathtakingly hand-drawn illustrations, meet eccentric characters, and solve puzzles to save Opera City!

    2021IndieAdventureCasual11.99 USDDeck VerifiedSingle-playerSimilar games →
  15. 15
    The Merlies — Steam game cover

    The Merlies

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

    Meet the Merlies, a tiny birds community trying to find harmony in a cute post-apocalyptic world filled with the remains of a long forgotten civilization. Gather your birdies, explore this wild world with your tiny bird squad and complete your village out of collected scraps!

    2026IndieAdventureSingle-playerSimilar games →