Single-player games like Parasite Tunnel
Below are 9 single-player Steam games similar to Parasite Tunnel, 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 Parasite Tunnel page.
Ranked picks
- 1
Visage
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
Visage is a first-person psychological horror game. Explore a mysterious ever-changing house in a slow-paced, atmospheric world that combines both uncannily comforting and horrifyingly realistic environments, and enjoy a genuinely terrifying experience.
- 2
SOMA
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
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.
- 3
The Beast Inside
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
The Beast Inside is a unique, gripping twist on thriller and survival horror. Immerse in the story of long-buried secrets, personal tragedies, and madness. Play as two protagonists bounded by dark heritage. Combat the enemies, solve riddles and experience real terror in the 3D-scanned environment.
- 4
>observer_
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
The original first‑person cyberpunk horror detective tale set in a decaying, neon‑scarred future. As an Observer who invades minds to hunt for clues, you will sift through corrupted memories to track down a mysterious killer and confront your own dark past.
- 5
Layers of Fear (2016)
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
A first-person psychological horror with a strong emphasis on atmosphere and storytelling. Explore an ever-shifting Victorian mansion as a painter seeking to complete his masterpiece, even at the cost of his own sanity.
- 6
Amnesia: A Machine for Pigs
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
From the creators of Amnesia: The Dark Descent and Dear Esther comes a new first-person horrorgame that will drag you to the depths of greed, power and madness. It will bury its snout into your ribs and it will eat your heart.
- 7
What Remains of Edith Finch
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
What Remains of Edith Finch is a collection of strange tales about a family in Washington state. As Edith, you’ll explore the colossal Finch house, searching for stories as she explores her family history and tries to figure out why she's the last one in her family left alive.
- 8
The Solus Project
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
The Solus Project is a single player exploration adventure with survival elements. The adventure is set on a mysterious planet and is the spiritual successor to The Ball - 2010 PC Gamer Action/Adventure Game Of The Year...
- 9
Parasite Elevator
Single-player alternative to Parasite Tunnel — playable solo, no multiplayer required. Shares Indie and Adventure with Parasite Tunnel.
A space where parasites in human form lurk. You are trapped inside this bizarre and unsettling place. Count the number of parasites hidden throughout the corridor, then use the elevator to proceed to the correct floor. Choose the wrong floor, and the elevator will begin to consume you.