Single-player games like Observer: System Redux
Below are 18 single-player Steam games similar to Observer: System Redux, 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 Observer: System Redux page.
Ranked picks
- 1
Ghostpunk
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
Investigate paranormal cases using a 1990s CRT terminal. Analyze photos. Decode audio. Interrogate suspects and decide what’s real, what’s fake and who’s lying. But the deeper you go, the more the system starts watching you back.
- 2
Shadow City Mysteries: Case Files - Rise of the Rat King
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
Shadow City Mysteries: Case Files – Rise of the Rat King is a narrative game set in Shadow City’s underbelly. Assume the role of the Rat King, an underworld mastermind fighting for absolute power. Shape your legend by forging alliances, crushing rivals, and leaving a trail of consequences.
- 3
Welcome to Lightford
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
Investigate a supernatural conspiracy in a 90s town hiding something far worse than secrets. Travel between 1990 and its ruined 1995 future, photograph anomalies, decode entities, and survive a town that doesn't want you here. Think outside the box. Every problem has more than one solution.
- 4
Harthorn
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
It's winter break 1994 and schools out at Harthorn High School, but not all is silent in its empty classrooms and dark hallways...
- 5
>observer_
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
The original first‑person cyberpunk horror detective tale set in a decaying, neon‑scarred future. As an Observer who invades minds to hunt for clues, you will sift through corrupted memories to track down a mysterious killer and confront your own dark past.
- 6
Athanasy
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie with Observer: System Redux.
Deep beneath the surface of the dead Earth, the City, the last refuge of humanity, hides. Engineering genius and efforts of all mankind; a giant structure of steel, concrete, and biopolymers. It keeps the remnants of civilization one step away from total extinction.
- 7
Family curse
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
Family curse is a mystical horror from the first person with a frightening atmosphere. Immerse yourself in the intricate history of the Crouse family and find out the terrible secret of the people who died in the cursed house.
- 8
Go Home Annie: An SCP Game
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
A twisted psychological thriller and an original story set in the SCP universe. As an employee of the SCP Foundation, test artificially created paranormal events, solve puzzles, interact with anomalies, and uncover the secrets of the Replication Division.
- 9
Batman: Arkham Asylum Game of the Year Edition
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure with Observer: System Redux.
Experience what it’s like to be Batman and face off against Gotham's greatest villians. Explore every inch of Arkham Asylum and roam freely on the infamous island.
- 10
SOMA
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
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.
- 11
Layers of Fear (2016)
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
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.
- 12
Still Wakes the Deep
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie and Adventure with Observer: System Redux.
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.
- 13
Blade Runner: Enhanced Edition
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure with Observer: System Redux.
Armed with your investigative skills and the tools of the Blade Runner trade, you'll be immersed in a world that lives and breathes around you with breakthrough lighting and visual effects. Your ability to survive will be put to the test in the richest game environment ever created.
- 14
PARANORMASIGHT: The Seven Mysteries of Honjo
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure with Observer: System Redux.
How far would you go to bring someone back from the dead? Discover the depths that some will go to in this horror-adventure game.
- 15
The Medium
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure with Observer: System Redux.
A third‑person psychological horror game where you explore both the real world and the spirit realm. As a medium drawn to a deserted resort, you’ll uncover dark secrets, confront echoes of trauma, and face the consequences of seeing more than one truth.
- 16
Cronos: The New Dawn
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required.
A whole new breed of survival horror emerges with Cronos: The New Dawn. Survive the brutal wastelands of the future, fight nightmarish merging creatures and jump back in time to harvest souls as you seek to uncover the origins of the apocalypse that wiped out humanity.
- 17
Layers of Fear
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure with Observer: System Redux.
The era-defining first-person psychological horror in all its terrifying glory. All of the game’s chapters collected into one convenient package that allows you to plumb the depths of madness in pursuit of artistic revelation.
- 18
Star Trek: Shadow Frontier
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure with Observer: System Redux.
Star Trek: Shadow Frontier is a story-driven, action-adventure set in the expansive Star Trek universe. Step into the fractured mind of former Lieutenant Ro Laren (voiced by Michelle Forbes) as she seeks to rescue an old friend by embarking on a harrowing journey of survival and self-discovery.