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
The Norwood Suite
Single-player alternative to Californium — playable solo, no multiplayer required. Shares Indie and Adventure with Californium.
Explore the mysterious Hotel Norwood in this surreal first-person adventure. Curious characters, forgotten secrets, and head-nodding music await your arrival.
- 2
Maize
Single-player alternative to Californium — playable solo, no multiplayer required. Shares Indie and Adventure with Californium.
Maize is a first-person adventure game about what happens when two scientists misinterpret a memo from the U.S. Government and create sentient corn. And that last sentence is pretty much the least ridiculous thing about the game.
- 3
The Old City: Leviathan
Single-player alternative to Californium — playable solo, no multiplayer required. Shares Indie and Adventure with Californium.
The Old City: Leviathan is an experiment in first person exploration that focuses entirely on story. All that exists is you and the world. Set in a decaying city from a civilization long past, The Old City: Leviathan puts the player in the shoes of a sewer dwelling isolationist.
- 4
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.
- 5
Kentucky Route Zero: PC Edition
Single-player alternative to Californium — playable solo, no multiplayer required. Shares Indie and Adventure with Californium.
KENTUCKY ROUTE ZERO is a magical realist adventure game about a secret highway running through the caves beneath Kentucky, and the mysterious folks who travel it.
- 6
KARMA: The Dark World
Single-player alternative to Californium — playable solo, no multiplayer required. Shares Indie and Adventure with Californium.
KARMA: The Dark World is a first-person cinematic psychological thriller set in a dystopian world where the Leviathan Corporation is omnipresent. The year is 1984, the place is East Germany, and things are not quite what they seem.
- 7
Out Of Hands
Single-player alternative to Californium — playable solo, no multiplayer required. Shares Indie and Adventure with Californium.
Out of Hands is a bizarre card-based adventure game that blends video-collage graphics with gripping psychological horror. Will you seek the truth lurking in this wicked, warped world—and can you bear its weight? Misty memories threaten to tear you apart, contorting you into a being... Out of Hands.
- 8
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.
- 9
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.
- 10
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.
- 11
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.
- 12
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.
- 13
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.
- 14
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!
- 15
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!