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Backrooms Lost Unit Achievements · SteamPeaks

Apps›Backrooms Lost Unit›Achievements

Backrooms Lost Unit

GameApp ID 4,279,040by JD ArchivesReleased 21 May 2026

WindowsEngine —

Exploration First-Person 3D Horror Psychological Horror Action +11 +13

Backrooms Lost Unit

JD Archives
Released 21 May 2026·App 4279040

Steam user reviews

Very Positive

80.4%· 51 reviews

Recent —

SteamPeaks Rating

69.4 Mixed

Recent 30 days —

How it works ›

Playing now

0

−2 vs. yesterday

0.0%of peak

All-time peak

13

Jul 2026

Updated 7 hours agoData by

Data

Price history Charts Patches Events Reviews Audience Estimates Availability

Technical

Metadata Packages DLC Depots1 Requirements Install size Configuration Cloud saves

Content

Achievements Community Media Related apps

History

Update history Store history

Everything

Achievements Overview Price history Charts Patches Events Reviews Audience Estimates Availability Metadata Packages DLC Depots1 Requirements Install size Configuration Cloud saves Community Media Related apps Update history Store history Full details

Every achievement on record

Achievements

13 achievements

RarestA Lost Soul22% of players

Most earnedWelcome To the Backrooms91% of players

Welcome To the Backrooms
Escape the Research Outpost
91%
Lobby Went Cold
You didn’t make it through… better luck next time.
62%
Pathfinder
You escaped Level 0
85%

App ID4,279,040

Release date21 May 2026

Engine—

Install size8.95 GB

TypeGame

Last update3 Sep 2026

Steam DeckUnknown

DLC0

DeveloperJD Archives

Changenumber38,629,804

Price$6.99

Packages0

PublisherJD Archives

SystemsWindows

Followers—

Depots1

SteamPeaks.com

First Kill

You’ve become the Backrooms first victim.

49%

Escape The Parking Zone

You found the exit to the Parking Zone

77%

Escape The Basement Level

You escaped the Basement Level

64%

A Lost Soul

A reminder of what awaits you.

22%

No Turning Back

You reached the Metro.

59%

Choo Choo Runnnn

You escaped the Metro Level

48%

Free Fall

You fell from a great height.

24%

You are in the Matrix

You escaped the Abandoned Office.

58%

This is just starting...

You escaped the Resort Level.

35%

Liminal Darkness

You found the dark pools.

29%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 13 of them.