Single-player games like Observer: System Redux
Below are 15 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

>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.
- 2

TR-49
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure with Observer: System Redux.
A World War II computer. An archive of lost books. A world-changing secret. Narrative deduction meets audio drama, from the creators of Overboard!, Heaven's Vault and A Highland Song.
- 3

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.
- 4

Still Wakes the Deep
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure and Indie 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.
- 5

Layers of Fear 2 (2019)
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure and Indie with Observer: System Redux.
A first‑person psychological horror game set on a haunted ocean liner. As an actor summoned by an unorthodox director, you’ll confront twisted memories from your past and learn the price of achieving the perfect performance.
- 6

SIMULACRA 2
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie with Observer: System Redux.
A dead influencer. An obsessed detective. Three suspects. Piece the truth together by going through the victim’s phone messages, videos, and social media in the follow up to the critically acclaimed SIMULACRA.
- 7

Hacknet
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Indie with Observer: System Redux.
Hacknet is an immersive, terminal-based hacking simulator for PC. Dive down a rabbit hoIe as you follow the instructions of a recently deceased hacker, whose death may not have been the accident the media reports.
- 8

Silicon Dreams | cyberpunk interrogation
Single-player alternative to Observer: System Redux — playable solo, no multiplayer required. Shares Adventure and Indie with Observer: System Redux.
It’s 2065, and you are an interrogator-model android tasked with rooting out deviants among your own kind. You must probe for lies, monitor and exploit emotional spikes, earn the trust of your subjects, and make the final call: release, or destroy?
- 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

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.
- 11

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.
- 12

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.
- 13

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.
- 14

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.
- 15

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.