Flat 9
A psychological horror set in a deserted apartment, where you're trapped in a relentless cycle. Armed with a strange device, you must find and report every anomaly to escape. Can you make it past Flat 9?
Last Updated: 7/3/2025
| Steam Price | $2.39 |
| Release Date | 3/18/2025 |
| Developer | Alessandro Arcangeli |
| Publisher | Alessandro Arcangeli |
| Steam App Id | 3510310 |
Flat 9
A psychological horror set in a deserted apartment, where you're trapped in a relentless cycle. Armed with a strange device, you must find and report every anomaly to escape. Can you make it past Flat 9?
Last Updated: 7/3/2025
- Windows
- Mac
- Linux
About Flat 9
Flat 9 is an Indie, Simulation, and Adventure game developed by Alessandro Arcangeli. On 3/18/2025, it was released on the Steam Store by Alessandro Arcangeli.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Flat 9 supports the following features:
- Steam Timeline
- Single-player
- Steam Cloud
- Family Sharing
- Steam Achievements
- Partial Controller Support
From the Steam community, Flat 9 has been tagged with the following user tags:
- Dark
- Surreal
- Tutorial
- Realistic
- 3D
- Controller
- Puzzle
- Walking Simulator
- First-Person
- Psychological Horror
- Simulation
- Horror
- Hidden Object
- Indie
- Adventure
- Singleplayer
Media & Sceenshots
Watch the featured video for Flat 9 and see the latest screenshots from the Steam Store.
Related Bundles
Flat 9 is included in 1 bundle in the Steam Store. Purchasing through a bundle can give a large discount off the game's base price if you are willing to purchase multiple apps all at once.
| Image | Name | Apps | Packages | Price | Actions |
|---|---|---|---|---|---|
 | Anomaly Games Collection | 4 | 4 | $11.35 | View |
Related Packages
Flat 9 is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.
Supported Languages and Localizations
Flat 9 is available in 2 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | No | No |
| Italian | Yes | No | No |
Discover Similar Games
Find a new game to play just like Flat 9 through our curated lists. Steambase uses Steam's User Tag and Genre system (and other game stats) to curate a list of the best and most loved games similar to Flat 9.
Genres
Features & Categories
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
Flat 9 data has been sourced from:
- Valve Corporation. (2025, July 3). Flat 9 on Steam. Steam Store.
- Valve Corporation. (2025, July 3). Flat 9. Steam Community Hub.