Single-player games like Quadrant
Below are 11 single-player Steam games similar to Quadrant, 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 Quadrant page.
Ranked picks
- 1
Syndrome
Single-player alternative to Quadrant — playable solo, no multiplayer required.
Syndrome, a sci-fi survival horror game that places you in a living hell inside a doomed starship. Find out what happened to your lost crew. Run. Hide. Fight. Survive.
- 2
ROUTINE
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
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.
- 3
The Beast Inside
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
The Beast Inside is a unique, gripping twist on thriller and survival horror. Immerse in the story of long-buried secrets, personal tragedies, and madness. Play as two protagonists bounded by dark heritage. Combat the enemies, solve riddles and experience real terror in the 3D-scanned environment.
- 4
Hollow Cocoon
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
"Trapped in a cocoon, the silkworm weaves her final dream." Hollow Cocoon is a first-person horror adventure game set in 1980s Japan. Immerse yourself in meticulously recreated environments as you venture into the depths of unspeakable horrors that await you.
- 5
Uncanny Valley
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
Uncanny Valley is a survival horror game that includes a mix of exploration, puzzle solving and a bit of action with a lot of optional story content. We're trying to preserve the old survival horror kind of gameplay instead of following the modern trend of creating a third person shooter with horror elements.
- 6
Penumbra Overture
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
Penumbra: Overture is a first person survival horror game, emphasizing on survival and problem solving instead of mindless violence and gore.
- 7
Phantaruk
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
Phantaruk combines survival horror with adventure and stealth mechanics. Expect true shivers down your spine as you fight for your life not only facing the dangers of the Purity-02 spaceship, but most of all - when you try to get rid of toxins continually destroying you from the inside.
- 8
The Evil Within 2
Single-player alternative to Quadrant — playable solo, no multiplayer required.
Detective Sebastian Castellanos has lost everything, including his daughter, Lily. To save her, he must descend into the nightmarish world of STEM. Horrifying threats emerge from every corner, and he must rely on his wits to survive. For his one chance at redemption, the only way out is in.
- 9
Outlast
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
Hell is an experiment you can't survive in Outlast, a first-person survival horror game developed by veterans of some of the biggest game franchises in history. As investigative journalist Miles Upshur, explore Mount Massive Asylum and try to survive long enough to discover its terrible secret... if you dare.
- 10
SCP – Containment Breach
Single-player alternative to Quadrant — playable solo, no multiplayer required. Shares Indie with Quadrant.
A procedural first-person horror adventure. You are on your own after something goes terribly wrong in this top-secret containment facility. Collect items to aid in your escape and try to uncover the truth, as horror lurks behind every door. Can you make it out alive?
- 11
Alien: Isolation
Single-player alternative to Quadrant — playable solo, no multiplayer required.
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger.