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Flat 9

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App ID 3510310
App Type Game
Developer
Publisher Alessandro Arcangeli
Supported Systems Windows
Technologies Unreal Engine
Last Changenumber 29515570
Last Record Update 11 June 2025 – 20:50:15 UTC ()
Release Date 18 March 2025 – 16:11:27 UTC ()
❓ 79.39%
18 reviews
0
In-Game

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?

Additional Information

Developer Alessandro Arcangeli
controller_support partial
community_visible_stats Yes
ReleaseState released
Publisher Alessandro Arcangeli
Store Release Date 18 March 2025 – 16:11:37 UTC ()
osarch empty string
community_hub_visible Yes
Primary Genre Indie (23)
Store Genres Adventure (25), Indie (23), Simulation (28)
Steam Release Date 18 March 2025 – 16:11:27 UTC ()
Store Asset Modification Time 4 April 2025 – 22:49:50 UTC () (1743806990)
library_assets
library_capsuleen
library_heroen
library_hero_bluren
library_logoen
library_headeren
logo_position ↴
pinned_positionBottomLeft
width_pct30.521788793209538
height_pct56.59468465482318
osextended empty string
review_score 7
review_percentage 100
Detected Technologies (?) Unreal Engine, Intel_OID SDK, Intel_oneTBB SDK, NVIDIA_Nsight_Aftermath SDK, Ogg SDK, Vorbis SDK, XAudio2 SDK
controllertagwizard Yes
First seen on SteamDB 3 February 2025 – 23:56:39 UTC (), in changelist #27298425

Supported Languages

2 Languages Interface Full Audio Subtitles Achievements
English Yes Yes
Italian Yes Yes

Tags

🌱 Indie 🚶 Walking Simulator 😱 Horror 🙌 First-Person 🖥️ Simulation 🗺️ Adventure 🌱 Realistic 🕴 Psychological Horror 🔍 Hidden Object 🧩 Puzzle 🎓 Tutorial 🎮 Controller 🧊 3D 😨 Dark 👤 Singleplayer 🫠 Surreal

Categories

Single-player Steam Achievements Steam Cloud Family Sharing Steam Timeline Profile Features Limited

Hardware Categories

Partial Controller Support

Assets

Load all asset images
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header_image
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library_hero ↴
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library_logo ↴
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logo_position/width_pct30.521788793209538
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library_header ↴
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Assets
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community_icon580e0b6b67983e3b3c3a58d1cb006cc38077aca7.jpg
page_background_pathapp/3510310
timestamp4 April 2025 – 22:50:06 UTC
Trailers
257099514 ↴
trailer_nameTrailer
trailer_category0
trailer_480p/video/webm257099514/movie480_vp9.webm
trailer_480p/video/mp4257099514/movie480.mp4
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microtrailer/video/mp43510310/830859/66dfa48f73b39e0dea8fca52d1fed8edc802f4e7/1750856964/microtrailer.mp4
screenshot_medium257099514/ec4b3cf27f5a207e5dcd037cb61968adbc16f092/movie_600x337.jpg
screenshot_full257099514/ec4b3cf27f5a207e5dcd037cb61968adbc16f092/movie_full.jpg
trailer_base_id830859
all_agestrue
is_highlighttrue
timestamp1741027812

Depots

ID Configuration Size DL.
228989 Windows Shared InstallDepot from 228980VC 2022 Redist No size
228990 Windows Shared InstallDepot from 228980DirectX Jun 2010 Redist No size
3510311 Windows 3.13 GiB 2.96 GiB

Total size on disk is 3.13 GiB and total download size is 2.96 GiB.

Branches

Name Description Build ID Time Updated
public 17787961 20 March 2025 – 01:03:38 UTC

Other

Name Value
hasdepotsindlc 0
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