Single-player games like Delusion Out of Space
Below are 8 single-player Steam games similar to Delusion Out of Space, 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 Delusion Out of Space page.
Ranked picks
- 1
Voyager-19
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Indie with Delusion Out of Space.
A short horror game where you control a decaying spacecraft exploring distant star systems.
- 2
SOMA
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Action and Indie with Delusion Out of Space.
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
Dead Space (2008)
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Action and Adventure with Delusion Out of Space.
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.
- 4
Antarctica 88
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Action and Indie with Delusion Out of Space.
Uncover the chilling secrets beneath the Antarctic ice in this survival horror FPS. Shoot unimaginable creatures, solve cryptic puzzles, and fight for your life in the frozen wastelands.
- 5
RIPOUT
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Action with Delusion Out of Space.
Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants capable of reconfiguring their alien bodies. Survive with your trusty Pet Gun companion, collect loot, and customize your character to fit your playstyle.
- 6
ROUTINE
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Action and Indie with Delusion Out of Space.
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.
- 7
Dead Space
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Action and Adventure with Delusion Out of Space.
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.
- 8
Scorn
Single-player alternative to Delusion Out of Space — playable solo, no multiplayer required. Shares Action and Indie with Delusion Out of Space.
Scorn is an atmospheric first-person horror adventure game set in a nightmarish universe of odd forms and somber tapestry.