CurseForge · Minecraft mod
Endless Backrooms
Just a Backrooms mod to kill some time.
Quick answer
Which Endless Backrooms release should I use?
Endless Backrooms [NeoForge 1.21.1] Endless Backrooms – 0.2.1.000 targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Endless Backrooms required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Endless Backrooms [NeoForge 1.21.1] Endless Backrooms – 0.2.1.000 need?
[NeoForge 1.21.1] Endless Backrooms – 0.2.1.000. Change the file and its required mods may change too.
Install Immersive Portals Port first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Endless Backrooms without breaking your instance.
Built for Endless Backrooms [NeoForge 1.21.1] Endless Backrooms – 0.2.1.000. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use [NeoForge 1.21.1] Endless Backrooms – 0.2.1.000. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Immersive Portals Port first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside [NeoForge 1.21.1] Endless Backrooms – 0.2.1.000. It opens that exact file at the source.
About this project
What does Endless Backrooms add?
They say that it's an afterlife–not for people, but for places. For every chain storefront demolished, every retail outlet bought out, every dead mall razed to the ground. A limbo for every building without purpose, those in-between spaces. Endless structures so unfathomable, yet so clearly man-made. Edges in the curtains of memory, corners that open up at the seams of reality to let the unlucky wanderer in.
Be careful out there, for the footsteps that fill these halls may not only be your own.

Welcome to Endless Backrooms! A mod based on the Backrooms creepypasta.
This mod will feature different dimensions, new mobs, items, and more.
The main way to enter another dimension is through a No-Clip: passing through a wall or other solid surface in an anomalous way, leaving reality behind and entering a different dimension: the Backrooms.
Level 0 is the most common destination for those performing their first No-Clip, although it’s possible to appear directly on one of the first three levels.
So far, there is no known way to return to reality once you’ve left it. Therefore, we recommend exercising extreme caution and, above all, avoiding any attempts to enter these dimensions.
Although, of course… we understand that the sense of adventure and curiosity you carry inside can be hard to ignore.
If you still decide to go in, good luck.
Project description from CurseForge.
Pick your setup
Endless Backrooms by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Endless Backrooms versions and loaders
[NeoForge 1.21.1] Endless Backrooms – 0.2.1.000
backrooms-0.2.1.000-neoforge-1.21.1.jar
17 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.2.0.000
backrooms-0.2.0.000-neoforge-1.21.1.jar
17 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.1.002
backrooms-0.1.1.002-neoforge-1.21.1.jar
7 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.1.001
backrooms-0.1.1.001-neoforge-1.21.1.jar
7 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.1.000
backrooms-0.1.1.000-neoforge-1.21.1.jar
7 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.0.004
backrooms-0.1.0.004-neoforge-1.21.1.jar
7 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.0.003
backrooms-0.1.0.003-neoforge-1.21.1.jar
5 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.0.002
backrooms-0.1.0.002-neoforge-1.21.1.jar
1 Oct 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.0.001
backrooms-0.1.0.001-neoforge-1.21.1.jar
30 Sept 2026
[NeoForge 1.21.1] Endless Backrooms – 0.1.0.000
backrooms-0.1.0.000-neoforge-1.21.1.jar
27 Sept 2026
[NeoForge 1.21.1] Endless Backrooms – 0.0.0.003
backrooms-0.0.0.003-neoforge-1.21.1.jar
2 Sept 2026
[NeoForge 1.21.1] Endless Backrooms – 0.0.0.002
backrooms-0.0.0.002-neoforge-1.21.1.jar
30 Aug 2026
Looking for an older file? The official CurseForge project page is in Resources.