Single-player games like Flat 9
Below are 8 single-player Steam games similar to Flat 9, 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 Flat 9 page.
Ranked picks
- 1
The Liminal Dimension
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
You're trapped in an endless loop within a liminal dimension, where each loop leads to increasingly unsettling places. Will you find the way out of this psychological horror? The game offers a unique déjà vu experience that blurs the lines between reality and illusion.
- 2
Cauldron Inn
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
Find yourself in the role of a prisoner in a dark fairy-tale hotel. Search for anomalies to escape. Collect the charms someone sends you, and beat the demon at his own puzzle games.
- 3
Paranormal place
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
Alex is a blogger who explores places with paranormal phenomena. At the request of his subscribers, he goes to an abandoned place where, according to rumors, some creepy things were noticed. What is happening there? You have to find it out.
- 4
One Last Clip
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
You are locked inside a cinema. Your only way to escape is to follow the instructions of your task: Watch the same film clip repeatedly and search for flaws to break free. But this may sound easier than it is, every wrong decision or death will set you back. So be careful!
- 5
Platform 8
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
You are trapped on a train that runs forever. Keep an eye out for anomalies and find a way out.
- 6
Lonely Christmas
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
It’s a story about an 8-year-old boy Kevin who was left alone at home at Christmas. Protect your house from a crazy robber and wait for your parents. Can you handle with it? We’ll find out.
- 7
CRUELTY
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
"CRUELTY" is a Japanese-made splatter horror. You were in an accident and lost consciousness. The moment you wake up, you find yourself in a nightmare world, one that is not of this Earth. In an abattoir ruled by madness, horrific scenes unfold, and inescapable terror awaits you.
- 8
Shift 87
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
Your task today: Memorize your environment and report any anomalies. Good luck with your shift! "Shift 87" is an observation horror game with subtle anomalies and unsettling occurrences.