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Lost In The Backrooms: Day 100 Achievements · SteamPeaks

Apps Lost In The Backrooms: Day 100Achievements

Lost In The Backrooms: Day 100

GameApp ID 3,964,500by Rough devsReleased 26 May 2026

WindowsEngine —

View on SteamSteamCompare Share

App ID3,964,500

Release date26 May 2026

Engine—

Install size3.63 GB

TypeGame

Last update31 May 2026

Steam Deck—

DLC0

DeveloperRough devs

Changenumber38,320,752

Price—

Packages0

PublisherRough devs

SystemsWindows

Followers—

Depots1

Compare this game

Lost In The Backrooms: Day 100

Rough devs
Released 26 May 2026·App 3964500

Steam user reviews

Mostly Positive

73.3%· 15 reviews

Recent Overwhelmingly Positive · 100%

SteamPeaks Rating

Not enough reviews yet

Rated from 10 reviews

Playing now

0

+0 vs. yesterday

0.0%of peak

All-time peak

3

10 Sep 2026

Updated 16 Sep 2026, 12:49 UTCData by

Data

Price history Charts Patches News 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 News 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

21 achievements · 2 secret

First of many...
Escape level 0 in singleplayer
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That's a lot of doors
Unlock the door and escape level 1 in singleplayer
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Pipe Dreams
Escape level 2 in singleplayer
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Had fun? =)
Escape level FUN in singleplayer
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SteamPeaks.com

RUN FOR YOUR LIFE

Escape level ! in singleplayer

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Walk for your life

Escape level !-B in singleplayer

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Finally relax

Enter level 37 in singleplayer

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A long road

Enter level 69 in singleplayer

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The endless city

Enter level 11 in singleplayer

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Courtyard of windows

Enter level 188 in singleplayer

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The flooded windows

Enter level 188.8 in singleplayer

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It's not real

Noclip to level 0 in singleplayer

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The deepest poolrooms

Enter level 37.1 in singleplayer

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Is this the end?

Enter level the end in singleplayer

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The staircase

Enter level 9223372036854775807

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Bad endingSecret

Steam withholds the description of a secret achievement.

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Canon ending

All luck.

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First time tasting almond water

Crack open an almond water can

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You cheated.

Someone is coming.

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The Electrical Station

Enter level 3

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Lost.Secret

Steam withholds the description of a secret achievement.

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Names, descriptions and icons are the game’s own, as Steam publishes them.