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Backrooms Mod

This mod adds new structures and stuff into your game.

NeoForge
Loaders
NeoForge
Downloads on Modrinth
381
Followers on Modrinth
0
version
1
Updated
February 21, 2026Feb 21
Published
in 2026
Trap Room — A Bit Glitchy, Literally. · swipe

At a glance

Runs on NeoForge
For Minecraft 1.21.1
Needed in the game and on the server
Latest version — 1.0.0 from February 21, 2026
License MIT — free
Where it's needed
In gamerequiredOn serverrequired

Needed both in the game and on the server

Game versions1.21.1

iminal Structures – Level 0 in the End (NeoForge 1.21.1)

Liminal Structures brings Level 0 of the Backrooms into Minecraft — not as a new dimension, but as a quiet corruption of The End itself.

Across the End, you’ll find 19 handcrafted, standalone Level 0 rooms, generated as isolated structures. No entities. No chase mechanics. No scripted horror.

Just fluorescent lights. Yellow wallpaper. Endless carpet.

🌫️ Concept

Level 0 appears naturally in the End as rare, structure-based anomalies. Each room is:

Randomly generated

Fully solid

Exploration-focused

Atmosphere-driven

They do not connect — every structure stands alone.

🧱 Blocks & Features

Custom blocks recreate the classic Backrooms aesthetic:

Wallpaper, ceiling tiles, fluorescent lights

Carpet (with slabs and stairs)

Vents and signage

Error blocks (visual anomalies)

Darkness & Darkness Core

Biohazard blocks and fluid (apply Wither)

Functional computer block

Items include:

Almond Water (rare consumable)

Flashlight (real light, subtle flicker)

🎮 Focus

This mod is built for:

Exploration

Liminal atmosphere

Minimalist horror

No new dimension. No sanity system. No entities.

Just Level 0, where it doesn’t belong.

Technical

Minecraft 1.21.1

NeoForge

Structure-based worldgen

Multiplayer compatible

Liminal Structures doesn’t try to be loud.

It simply places Level 0 in the End — and lets you stand in it.

FAQ

How to install Backrooms Mod?

Install NeoForge for your Minecraft version, download Backrooms Mod for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Backrooms Mod support?

Backrooms Mod has builds for Minecraft 1.21.1.

Is Backrooms Mod needed on the server?

Needed in the game and on the server

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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