Single-player games like Mouthwashing
Below are 16 single-player Steam games similar to Mouthwashing, 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 Mouthwashing page.
Ranked picks
- 1
SOMA
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Indie and Adventure with Mouthwashing.
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.
- 2
Amnesia: The Dark Descent
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Indie and Adventure with Mouthwashing.
Amnesia: The Dark Descent, a first person survival horror. A game about immersion, discovery and living through a nightmare. An experience that will chill you to the core.
- 3
SILENT HILL f
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure with Mouthwashing.
Hinako's hometown is engulfed in fog, driving her to fight grotesque monsters and solve eerie puzzles. Uncover the disturbing beauty hidden in terror.
- 4
Observation
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure and Indie with Mouthwashing.
Observation is a sci-fi thriller uncovering what happened to Dr. Emma Fisher, and the crew of her mission, through the lens of the station’s artificial intelligence S.A.M.
- 5
Detention
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Indie and Adventure with Mouthwashing.
Detention is an atmospheric horror game set in 1960s Taiwan under martial law. Incorporated religious elements based in Taiwanese/Chinese culture and mythology, the game provided players with unique graphics and gaming experience.
- 6
The Cat Lady
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Indie and Adventure with Mouthwashing.
The Cat Lady follows Susan Ashworth, a lonely 40-year old on the verge of suicide. She has no family, no friends and no hope for a better future. One day she discovers that five strangers will come along and change everything...
- 7
Mundaun
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure and Indie with Mouthwashing.
Mundaun is a lovingly hand-penciled horror tale set in a dark, secluded valley of The Alps. Explore various areas full of secrets to discover, survive hostile encounters, drive vehicles, fill your inventory, and solve a variety of handcrafted puzzles.
- 8
Still Wakes the Deep
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure and Indie with Mouthwashing.
1975. Disaster strikes the Beira D oil rig off the coast of Scotland. Navigate the collapsing rig to save your crew from an otherworldly horror on the edge of all logic and reality in this 3x BAFTA Games Award-winning narrative horror experience.
- 9
SILENT HILL 2
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure with Mouthwashing.
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.
- 10
Inscryption
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure and Indie with Mouthwashing.
Inscryption is an inky black card-based odyssey that blends the deckbuilding roguelike, escape-room style puzzles, and psychological horror into a blood-laced smoothie. Darker still are the secrets inscrybed upon the cards...
- 11
SIGNALIS
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure and Indie with Mouthwashing.
A classic survival horror experience set in a dystopian future where humanity has uncovered a dark secret. Unravel a cosmic mystery, escape terrifying creatures, and scavenge an off-world government facility as Elster, a technician Replika searching for her lost dreams.
- 12
Layers of Fear (2016)
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Indie and Adventure with Mouthwashing.
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.
- 13
LISA: The Painful
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure and Indie with Mouthwashing.
The miserable journey of a broken man...
- 14
Metro Gravity
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Indie and Adventure with Mouthwashing.
Explore, fight, solve puzzles and bend gravity to escape the dream-like world of the Halls! Metro Gravity is a mind-boggling musical adventure with rhythmic combat and compelling lore.
- 15
Cooking Companions
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Adventure and Indie with Mouthwashing.
Unravel the mystery in this cute psychological horror VN, set deep in the woods of the Tatras Mountains. Will you wind up on the chopping block?
- 16
Lunacid
Single-player alternative to Mouthwashing — playable solo, no multiplayer required. Shares Indie with Mouthwashing.
Cast into the Great Well, unwanted by the world above. You delve the dark in search of the Old One, your last salvation. Lunacid is a dark fantasy dungeon crawler inspired by Shadow Tower and King’s Field.