
Endless Backrooms
One Backrooms mod, one large Backrooms mod
Screenshots






About this Mod
"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."

Endless Backrooms is a mod based on the Backrooms: endless liminal spaces with different levels of difficulty, their own rules, and structures that can be stable or completely chaotic.
The mod is mainly focused on exploration, so it does not add interactive decorative blocks like those in Mr.Crayfish's Furniture or HandCrafted. However, the modpack of the same name uses additional mods for construction. Although these are not included in the base mod, the structures saved in NBT do use them, so they will appear correctly within the modpack.
The project has no defined limit, so the plan is to add as many levels, entities, objects, and mechanics as possible. There will be much more content in the future.
Current Content
Levels
- Level 0 – The Lobby
- The Manila Room
- The Redrooms
- The Torment
- The Dullness
Entities
At the moment, there are no entities present in this version of the mod.
Objects
There are currently no objects present in this version of the mod.
Available Versions
How to Install Endless Backrooms on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "Endless Backrooms". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8, 1.21.4, 1.21.1 (+1 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Endless 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 (1.21.8). You can switch loaders with one click in the panel.
Is Endless Backrooms compatible with fabric and forge and neoforge?
Endless Backrooms officially supports fabric, forge, neoforge for Minecraft 1.21.8, 1.21.4, 1.21.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Endless Backrooms – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Endless 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.
Similar Mods
Rent Modded Server
Install Endless Backrooms with just one click on your server.