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

Angels In Orbit
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Indie and Adventure with Immortum.
The year is 2170. An anomaly has ripped through the AIO Station, leaving a lone technician fighting to survive. As the silence of deep space closes in, biblical angels descend, beginning trials of morality, judgment, and the price of human ambition.
- 2

Vessels
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Indie and Adventure with Immortum.
Quarantined inside an airlock. No memories. No way out. The remaining crew thinks there’s something wrong with you, but the Voice says it’ll help you escape. Navigate volatile conversations & unravel mysteries in this narrative adventure about trust, self-destruction, & shifting identities.
- 3

ROUTINE
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Indie and Adventure with Immortum.
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

Don't Be Afraid 2
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Indie and Adventure with Immortum.
Descend deep into the nightmare that seamlessly blends with reality in this uncanny horror escape room game. Can you find your way out of the horrid mansion or will you succumb to your fears? Can you face and overcome your past, or will it break you?
- 5

Ikai
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Indie and Adventure with Immortum.
Fear and anxiety prevail after the darkest tales from Japanese folklore come to life in this first-person psychological horror game. Set in a feudal era, Ikai revolves around the priestess of a shrine struggling to defeat the spirits of her past and her present.
- 6

SOMA
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Indie and Adventure with Immortum.
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.
- 7

The Turing Test
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Adventure with Immortum.
The Turing Test is a challenging first-person puzzle game set on Jupiter’s moon, Europa. You are Ava Turing, an engineer for the International Space Agency (ISA) sent to discover the cause behind the disappearance of the ground crew stationed there.
- 8

The Crooked Man
Single-player alternative to Immortum — playable solo, no multiplayer required. Shares Indie and Adventure with Immortum.
There was a crooked man, and he walked a crooked mile... This is the first title in the series known as The Strange Man, developed by Uri Games. Experience the myriad horrors awaiting David as he moves into his new house.