The Backrooms: Beta Release

Name: The Backrooms: Beta Release
Author: LIL_BOI

The Backrooms: Beta Release lets players explore the Backrooms, an endless liminal space, in a Fabric mod built for Minecraft 1.21.11.

FabricClient and serverMIT License1.21.11

What it does

Players walk through the Backrooms dimension, a set of empty yellow rooms where monsters can attack. The setting also includes a hazmat-style player skin the author created, and a work setup device that is still in development. Players who suffocate themselves can enter the Backrooms as an in-game route.

Key features

Backrooms exploration
Players enter an endless maze of liminal rooms and search for a way out.
Hostile monsters
Creatures roam the Backrooms and can strike players who stay too long in one place.
Hazmat player skin
A protective suit skin is included for players who want to match the setting.

Gallery

Hazmat · A player wearing the hazmat suit item holding a flashlight i nthe poolrooms

Compatibility

Latest build for each game version and loader.

1.21.111.8.2

ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.

Required

How it compares

Full comparison

Backrooms Through The Walls runs on Fabric for 1.21.1 under All rights reserved. Vanilla Backrooms is server-side only and open source under the GNU General Public License v3.0 only, covering 1.21.8 – 1.21.11 on Fabric and Quilt.

Mod	Loaders	Game versions	Environment	Updated
The Backrooms: Beta Release	Fabric	1.21.11	Client and server	2026-08-21
Backrooms Through The Walls	Fabric	1.21.1	Client and server	2025-12-05
Vanilla Backrooms	Fabric and Quilt	1.21.8 – 1.21.11	Server-side only	2026-03-26

Questions

Does The Backrooms: Beta Release need Fabric API?

Yes. Fabric API is a required dependency, so it must be installed alongside the mod on Fabric for 1.21.11.

Where does the mod run?

Servers that run it need every player to install it too.

In the catalog

The Backrooms: Beta Release is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 19,862 mods support Minecraft 1.21.11.

Cursed mods7,555 Fabric mods Mods for 1.21.1119,862

Similar mods

Load My F***ing Tags1.17.1 – 1.21.11

Philips Ruins1.18.2 – 1.21.11

From The Fog1.19 – 26.2

BetterHurtCamb1.7.3 – 26.3

Chunks fade in1.18 – 26.3

Inventory Particles1.20.1 – 26.3

What the author says

Suffocate yourself to go to the Backrooms! Disclaimer: This mod is still in-dev so this might not work on every setup and device.

LIL_BOI, on the Modrinth page

Official listing

Modrinth page: modrinth.com/mod/the-backrooms-beta-release
Owner: LIL_BOI
Published: 2026-08-20
Updated on Modrinth: 2026-08-21
Facts verified: 2026-10-15