Immersive Backrooms

Immersive Backrooms

This in-progress Fabric mod is my interpretation of the Backrooms in Minecraft!

by
7.6K Downloads
fabricadventuretechnologyworldgen
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About this Mod

Welcome to the Backrooms, Traveler.

It seems you have noclipped out of the bounds of reality, and into a bizarre new world. We'd like to
welcome you to the "Backrooms", an alternate dimension where the laws of physics cease to apply.

- Scutoid, Backrooms Wiki Homepage


The Backrooms is an intriguing concept, one that I, along with many other people, have poured hours into exploring -- from watching YouTube videos, to delving through the depths of the Backrooms Wiki. What better way to immerse oneself further into the Backrooms than through personal experience? Although there are already some Backrooms mods out there for Minecraft, they weren't quite what I was looking for. I chose to make my own version, which blends the standard Backrooms lore from the Backrooms Wiki with some aspects of Kane Pixels' own Backrooms series. I plan to make this mod a long-term project, although I will be working on it in my spare time. This means it might not be updated frequently, but more content (e.g. new Backrooms levels and other features) will be added over time.

Image of Backrooms Level 0

Mod Information

Requires Fabric API

This mod is an addon for Tech Reborn.

Mod loader: Fabric
Required mods: Fabric API, Tech Reborn, and Immersive Portals
Current Minecraft Version(s): 1.20.4

Version 0.1.0 of this mod uses customportalapi instead of Immersive Portals.

Credits

Mod author: me
Textures: me
(except the machine textures, which are based on machine textures from Tech Reborn)
Music: me

See the GitHub page for the mod source files, as well as a wiki (not written yet) and to submit any issues or bug reports. If you have suggestions, feel free to leave them as comments here or on the GitHub page!

Many thanks to everyone who have helped me debug some difficult issues and improve my modding skills, especially to qouteall (the creator of Immersive Portals) and members of the Modded Minecraft discord server.

This mod is Fabric only, and will be worked on and updated according to my personal schedule.

Available Versions

Immersive Backrooms 0.8.1 for Minecraft 1.20.4alpha
MC 1.20.4fabric
May 26, 2026
[1.20.4] Immersive Backrooms 0.8.0alpha
MC 1.20.4fabric
February 22, 2024
[1.20.1] Immersive Backrooms 0.7.0alpha
MC 1.20.1fabric
February 20, 2024
[1.19.4] Immersive Backrooms 0.6.1alpha
MC 1.19.4fabric
August 7, 2023
[1.19.4] Immersive Backrooms 0.6.0alpha
MC 1.19.4fabric
July 1, 2023

How to Install Immersive Backrooms on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.4).

3

Install Mod

Open the mod browser in the dashboard and search for "Immersive Backrooms". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.20.4, 1.20.1, 1.19.4 (+1 more)

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Immersive Backrooms server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.20.4). You can switch loaders with one click in the panel.

Is Immersive Backrooms compatible with fabric?

Immersive Backrooms officially supports fabric for Minecraft 1.20.4, 1.20.1, 1.19.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Immersive Backrooms – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Immersive Backrooms consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Immersive Backrooms with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU General Public License v3.0 only
Server-side
Required

Supported Versions

1.20.41.20.11.19.41.19.2