Single-player games like Somnium
Below are 8 single-player Steam games similar to Somnium, 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 Somnium page.
Ranked picks
- 1

Theater of Death
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Indie and Adventure with Somnium.
Wander through dark corridors, look into abandoned editing rooms, penetrate dusty archives and uncover the secrets of the movie studio and its employees. Collect puzzle pieces: Study notes, letters, photos, listen to audio recordings to understand what happened on the set of the cursed movie.
- 2

Midnight Cruise
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Indie and Adventure with Somnium.
As you progress, you'll need to find keys and open locked doors. Solve puzzles and find passages. A first-person game with elements of horror. Explore the ship and its cabins, collect batteries for your flashlight. Ability to use the camera Solve puzzles. The darkness can conceal various secrets.
- 3

Dark Resolve
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Indie and Adventure with Somnium.
Immerse yourself in a chilling nightmare where the darkest corners of the past come to life to haunt you. This is a tense first-person psychological horror game that transports you to the heart of an abandoned police station. .
- 4

Unable to Exit 8
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Indie and Adventure with Somnium.
You receive an invitation on a "special" dating app, get excited and then get involved in an endless cycle of couples' hotels. You have to watch carefully for any unusual information. Can you solve these puzzles?
- 5

Escape Room Collection C2 Psychological Horror
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Indie and Adventure with Somnium.
A collection of escape room games with a psychological horror theme. Intensely scary visually stimulated and cleverly psychologically intrigued as players are both timid and captivated, you'll be locked in a room full of horror atmospheres where you must find clues and solve puzzles to escape.
- 6

Cauldron Inn
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Indie and Adventure with Somnium.
Trying to save yourselfe from something unknown but clearly malevolent, you hide in a mysterious inn. However, your temporary refuge turns out to be a trap, and now you must find a way to escape.
- 7

Observer Protocol: The Station - First Shift
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Indie and Simulation with Somnium.
A minimalist surveillance horror game. Flip through security cameras on a deep space station and report subtle anomalies. No jump scares. No combat. Just watch, observe, and try not to miss the moment everything goes wrong.
- 8

Aurora Hills: Chapter 2
Single-player alternative to Somnium — playable solo, no multiplayer required. Shares Adventure with Somnium.
Aurora Hills: Chapter 2 is the second part in series of point and click puzzle adventure games. Follow the journey of Ethan Hill, a park ranger tasked with investigating strange disappearances from a national park to uncover the mystery of Aurora Hills!