后室迷失之境Backrooms:The Lost

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App ID	2999000
App Type	Game
Store Name	后室迷失之境Backrooms：The Lost
Developer	Golden Trees黄金树
Publisher	Golden Trees黄金树
Supported Systems	Windows Linux
Last Changenumber	30510248
Last Record Update	9 August 2025 – 22:33:22 UTC ()
Release Date	Q1 2026

A [Puzzle game] + [escape room] backrooms game;You are FBI agent Tommy.Unfortunately, he fell into the back room during a disappearance case.Random mazes, physical dangers, and the pressure of liminal spaces,Can you escape safely?

Additional Information

This game is excluded from Steam Family Sharing because: This game has not yet been released

ReleaseState

prerelease

Exclude from family sharing (exfgls)

8 (This game has not yet been released)

Store Release Date

Q1 2026

osarch

empty string

community_hub_visible

Yes

Social Media

https://discord.gg/N6g4GHy5x4
https://www.douyin.com/user/MS4wLjABAAAAgpbBKwfzFU-TLOnvh1sltJuxBFb-GBRO33tfI5d226U?from_tab_name=main
https://space.bilibili.com/56347070?spm_id_from=333.337.0.0
https://www.tiktok.com/@baiyou_backrooms
https://www.youtube.com/@baiyou18

Primary Genre

Action (1)

Store Genres

Action (1), Adventure (25), Indie (23), RPG (3)

Store Asset Modification Time

9 August 2025 – 22:31:26 UTC () (1754778686)

library_assets

library_capsule	en,zh-cn
library_hero	zh-cn,en
library_logo	en,zh-cn
library_header	en,zh-cn
logo_position ↴
pinned_position	BottomLeft
width_pct	113.52532815462244
height_pct	100

osextended

empty string

controllertagwizard

Yes

AI Content Type

First seen on SteamDB

15 May 2024 – 08:58:20 UTC (), in changelist #23546677

Supported Languages

2 Languages	Interface	Full Audio	Subtitles
English	Yes	Yes	Yes
Simplified Chinese	Yes		Yes

Assets

Load all asset images

clienticon

16fc9d47ad665418b0827cd679bb2e9aadcf6a60

clienttga

19ae0cea9b079774f86594cc5896df0ce37bc8a3

icon

2befcfd91f2dbcae8b81c50f86ee9788f6f6d022

clienticns

07785e6774e46f8b5f2fe80910a3af8b0d75ee3f

LinuxClientIcon

4906ad98b4d0969ce4e008b8f8cc4d7143a6e547

small_capsule

sc_schinese	capsule_231x87_sc_schinese.jpg
english	20f6c489cd3f4701e8ac21e8503fd3f199d0b1e6/capsule_231x87.jpg
schinese	3d685f3faad4dc35ad4b263e6c9ed435ab587512/capsule_231x87_schinese.jpg

header_image

english	c4999709c9503c17aa9936cdf8fb9249b35026c4/header.jpg
schinese	b059d8dd9e823517ff3a2e17bf71ba9cff9ac274/header_schinese.jpg

library_assets_full

library_capsule ↴
image/english	library_600x900.jpg
image/schinese	library_600x900_schinese.jpg
image2x/english	library_600x900_2x.jpg
image2x/schinese	library_600x900_schinese_2x.jpg
library_hero ↴
image/schinese	library_hero_schinese.jpg
image/english	library_hero.jpg
image2x/schinese	library_hero_schinese_2x.jpg
image2x/english	library_hero_2x.jpg
library_logo ↴
logo_position/pinned_position	BottomLeft
logo_position/width_pct	113.52532815462244
logo_position/height_pct	100
image/english	logo.png
image/schinese	logo_schinese.png
image2x/english	logo_2x.png
image2x/schinese	logo_schinese_2x.png
library_header ↴
image/english	library_header.jpg
image/schinese	library_header_schinese.jpg
image2x/english	library_header_2x.jpg

Assets

main_capsule	652f6b2ca6b122cb2e6aa9d7854b521ce9e2836b/capsule_616x353.jpg
small_capsule	20f6c489cd3f4701e8ac21e8503fd3f199d0b1e6/capsule_231x87.jpg
header	c4999709c9503c17aa9936cdf8fb9249b35026c4/header.jpg
page_background	page_bg_generated_v6b.jpg
hero_capsule	6b38fb649ee3bba89a20a931297a6a12201b2688/hero_capsule.jpg
hero_capsule_2x	6b38fb649ee3bba89a20a931297a6a12201b2688/hero_capsule_2x.jpg
library_capsule	library_600x900.jpg
library_capsule_2x	library_600x900_2x.jpg
library_hero	library_hero.jpg
library_hero_2x	library_hero_2x.jpg
community_icon	2befcfd91f2dbcae8b81c50f86ee9788f6f6d022.jpg
page_background_path	app/2999000
raw_page_background	page_bg_raw.jpg
timestamp	9 August 2025 – 22:33:19 UTC

Trailers

257180910 ↴
trailer_name	《Backrooms:The Lost》Real Gameplay PV
trailer_category	3
trailer_480p/video/webm	257180910/movie480_vp9.webm
trailer_480p/video/mp4	257180910/movie480.mp4
trailer_max/video/webm	257180910/movie_max_vp9.webm
trailer_max/video/mp4	257180910/movie_max.mp4
microtrailer/video/webm	2999000/1050989053/96f7080ebca9db6a72574ef4615c7a97f6b46ef9/1754770853/microtrailer.webm
microtrailer/video/mp4	2999000/1050989053/96f7080ebca9db6a72574ef4615c7a97f6b46ef9/1754770853/microtrailer.mp4
screenshot_medium	257180910/8b06c812b7c5d442e75d5d4335c558a3e6b8e308/movie_600x337.jpg
screenshot_full	257180910/8b06c812b7c5d442e75d5d4335c558a3e6b8e308/movie_full.jpg
trailer_base_id	952393
all_ages	true
is_highlight	true
timestamp	1754771414

后室迷失之境Backrooms:The Lost

Additional Information

Supported Languages

Tags

Categories

Assets