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.
Trying to save yourselfe from something unknown but clearly malevolent, you hide in a mysterious inn. However, your temporary refuge turns out to be a trap, and now you must find a way to escape.
- 3
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!
- 4
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.
- 5
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.
- 6
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.
- 7
Clink
Single-player alternative to Flat 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Flat 9.
You are a lonely woman, secluded in a house with your cat... and the secrets of the past. What hides within your mind — illness, or something otherworldly? Nightmares and reality intertwine… everything is so foggy. Do you have the courage to remember what happened?
- 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.