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Lost In The Backrooms: Day 100

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App ID 3964500
App Type Game
Developer
Publisher Rough devs
Supported Systems Windows
Last Changenumber 31039273
Last Record Update 10 September 2025 – 15:03:17 UTC ()
Release Date September 2025
🗺️ Adventure 💥 Action 🧊 3D 🍿 Cinematic 🌱 Realistic

Lost in the backrooms day 100 is a co-op horror game based on the concept of the backrooms with different levels and entities , a sanity system and unreal engine 5 graphics for the best immersive experience.

There is only partial information available about this app as SteamDB is missing the access token.

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 September 2025
osarch 64
community_hub_visible Yes
Social Media https://discord.gg/CdgtcwcxWe
https://www.tiktok.com/@rough_devs
https://www.youtube.com/@Rough_Devs
Primary Genre Indie (23)
Store Genres Action (1), Adventure (25), Indie (23), Early Access (70)
Store Asset Modification Time 8 September 2025 – 19:31:14 UTC () (1757359874)
library_assets
library_capsuleen
library_heroen
library_hero_bluren
library_logoen
library_headeren
logo_position ↴
pinned_positionBottomLeft
width_pct36.928714740137934
height_pct105.90277777777779
osextended empty string
controllertagwizard Yes
First seen on SteamDB 17 August 2025 – 13:42:30 UTC (), in changelist #30636613

Supported Languages

1 Languages Interface Full Audio Subtitles
English Yes Yes

Tags

🗺️ Adventure 💥 Action 🧊 3D 🍿 Cinematic 🌱 Realistic 🌫 Atmospheric 🎒 Survival Horror 🕴 Psychological Horror 🌲 Survival 🌱 Indie 🐤 Early Access 🤝 Co-op 👥 Online Co-Op 👤 Singleplayer 🕹️ Multiplayer

Categories

Single-player Online Co-op Family Sharing Early Access Steam is learning Multi-player Co-op

Accessibility Categories

Camera Comfort Custom Volume Controls Playable without Timed Input Adjustable Difficulty

Assets

Load all asset images
clienticon 50af68420c32420fcdd1b37545bedd325f2d13e3
icon 50af68420c32420fcdd1b37545bedd325f2d13e3
small_capsule
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header_image
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library_assets_full
library_capsule ↴
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image2x/englishb170079108c9fb63f211d68e027423cbc270c1e3/library_capsule_2x.jpg
library_hero ↴
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image/english2c4d9f8efce39e5e8948560d1a0a8955e8575af9/library_hero.jpg
library_hero_blur ↴
image/english2c4d9f8efce39e5e8948560d1a0a8955e8575af9/library_hero_blur.jpg
library_logo ↴
image/englishcb236e86d287729ac88332968482f307c9699f74/logo.png
image2x/englishcb236e86d287729ac88332968482f307c9699f74/logo_2x.png
logo_position/pinned_positionBottomLeft
logo_position/width_pct36.928714740137934
logo_position/height_pct105.90277777777779
library_header ↴
image/englishad38c7f4a5c056f975a61810203a71271592bb98/library_header.jpg
image2x/englishad38c7f4a5c056f975a61810203a71271592bb98/library_header_2x.jpg
Assets
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small_capsuledc850f0ac56977c2c43fcc34fa9c24d039936963/capsule_231x87.jpg
headerad38c7f4a5c056f975a61810203a71271592bb98/header.jpg
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library_capsuleb170079108c9fb63f211d68e027423cbc270c1e3/library_capsule.jpg
library_capsule_2xb170079108c9fb63f211d68e027423cbc270c1e3/library_capsule_2x.jpg
library_hero2c4d9f8efce39e5e8948560d1a0a8955e8575af9/library_hero.jpg
library_hero_2x2c4d9f8efce39e5e8948560d1a0a8955e8575af9/library_hero_2x.jpg
community_icon50af68420c32420fcdd1b37545bedd325f2d13e3.jpg
page_background_pathapp/3964500
timestamp10 September 2025 – 11:17:23 UTC
Trailers
257191655 ↴
trailer_nameLost in the backrooms: Day 100 Trailer
trailer_category3
trailer_480p/video/webm257191655/movie480_vp9.webm
trailer_480p/video/mp4257191655/movie480.mp4
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trailer_max/video/mp4257191655/movie_max.mp4
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microtrailer/video/mp43964500/285816340/54c4c8f596325efd31190defb6cba8491fe28af4/1756723112/microtrailer.mp4
screenshot_medium257191655/17e4009729aababa954a1c619cfd61ba1032f070/movie_600x337.jpg
screenshot_full257191655/17e4009729aababa954a1c619cfd61ba1032f070/movie_full.jpg
trailer_base_id968796
all_agestrue
is_highlighttrue
timestamp1757503041

History

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