Single-player games like Gray
Below are 8 single-player Steam games similar to Gray, 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 Gray page.
Ranked picks
- 1
DERELIKT
Single-player alternative to Gray — playable solo, no multiplayer required. Shares Indie with Gray.
DERELIKT is a narrative retro FPS built for fans of claustrophobic PS1-era sci-fi horror.
- 2
Moons of Madness
Single-player alternative to Gray — playable solo, no multiplayer required.
Moons of Madness is a first-person, story-driven cosmic horror game where the scientific exploration of Mars meets the supernatural dread of Lovecraft.
- 3
ROUTINE
Single-player alternative to Gray — playable solo, no multiplayer required. Shares Indie with Gray.
ROUTINE is a First Person Sci-Fi Horror set on an abandoned lunar base designed around an 80s vision of the future. Explore and investigate your surroundings as you survive against unknown threats.
- 4
Observation
Single-player alternative to Gray — playable solo, no multiplayer required. Shares Indie with Gray.
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
Dead Space (2008)
Single-player alternative to Gray — playable solo, no multiplayer required.
You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.
- 6
Voyager-19
Single-player alternative to Gray — playable solo, no multiplayer required. Shares Indie with Gray.
A short horror game where you control a decaying spacecraft exploring distant star systems.
- 7
Unsafe Express
Single-player alternative to Gray — playable solo, no multiplayer required. Shares Indie with Gray.
Unsafe Express is a cooperative first-person survival horror game for 1-4 players. Navigate through space stations, collect materials and outlast your enemies! Choose your objective based on complexity levels, then cast your vote. Gather items, exterminate hostiles, fulfill missions and repeat!
- 8
Dead Space
Single-player alternative to Gray — playable solo, no multiplayer required.
The sci-fi survival-horror classic returns, completely rebuilt to offer an even more immersive experience — including visual, audio, and gameplay improvements — while staying faithful to the original game’s thrilling vision.