Single-player games like The Tartarus Key
Below are 14 single-player Steam games similar to The Tartarus Key, 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 The Tartarus Key page.
Ranked picks
- 1
CLeM
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
CLeM is a narrative-driven puzzle adventure game with a dark twist. Wake up in a world where puzzles intertwine with exploration, weaving a unique narrative rooted in alchemy. A voice awakens you. It gives you purpose. To guide you, you find a notebook with mysterious entries and a house to explore.
- 2
Oxenfree
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
Oxenfree is a supernatural thriller about a group of friends who unwittingly open a ghostly rift. You are Alex, and you’ve just brought your new stepbrother Jonas to an overnight island party gone horribly wrong.
- 3
No, I'm not a Human
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required.
WARNING. Stay inside. Lock your doors. Close the blinds. Only let humans in. Eliminate all Visitors. An anxiety horror about paranoia in the End of Times.
- 4
Panelak
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
Panelak is an old socialist-era building where strange things happen. Can you make it to the roof and help the helpless man?
- 5
The Guest
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
'The Guest' is a gloomy adventure full of enigmas where the exploration of your surroundings comes to prominence; puzzles, secrets and riddles will help you discover who has locked you in this somber hotel room and most importantly, why.
- 6
Those Who Remain
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
As the lights go out, the embers of darkness are stoked in the sleepy town of Dormont. Confront uncomfortable horrors, keep your sanity in check and survive the night in this story-driven first-person psychological-thriller.
- 7
Martha Is Dead
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
Set in 1944 Italy, Martha Is Dead is an award-winning dark psychological thriller where the lines between truth, superstition, and tragedy blur. Explore a haunting countryside, uncover disturbing memories, and peel back layers of mystery. Every choice shapes the nightmare…are you ready to face it?
- 8
Is this Game Trying to Kill Me?
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
An old shack deep in a dense forest, a strange computer and a game that's trying to kill you!
- 9
Resident Evil
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
The game that defined the survival-horror genre is back! Check out the remastered HD version of Resident Evil.
- 10
Myst
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
Welcome to Myst: a starkly beautiful island, eerily tinged with mystery and shrouded in intrigue. Built from the ground up to play in 2D & VR, explore Myst in a whole new dimension! Journey to the Ages, unravel puzzles, and be a part of the surrealistic adventure that will become your own.
- 11
Zero Escape: The Nonary Games
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
Kidnapped and taken to an unfamiliar location, nine people find themselves forced to participate in a diabolical Nonary Game by an enigmatic mastermind called Zero. Why were they there? Why were they chosen to put their lives on the line? And more importantly, who can be trusted?
- 12
SILENT HILL 2
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required. Shares Adventure with The Tartarus Key.
Investigating a letter from his late wife, James returns to where they made so many memories - Silent Hill. What he finds is a ghost town, prowled by disturbing monsters and cloaked in deep fog. Confront the monsters, solve puzzles, and search for traces of your wife in this remake of SILENT HILL 2.
- 13
Tangrams Deluxe
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required.
A tangram is a Chinese logic puzzle in which you must fit seven pieces into a target shape without any overlapping. Enjoy solving over 200 deceptively simple puzzles in Tangrams Deluxe!
- 14
Yuso
Single-player alternative to The Tartarus Key — playable solo, no multiplayer required.
Yuso is a puzzle game where you have to clear the screen of Yuso! The game gets harder as you progress, introducing new colours and gadgets to help or harm you along the way.