Backrooms: The Complex

Backrooms: The Complex

A survival friendly, lore accurate backrooms mod with high quality visuals.

by
646 Downloads
neoforgeadventuredecorationworldgen
Rent Server with this Mod

Screenshots

Null Zone Stabilizer Recipe
Long Hallway
Doorways
World Gen Quirks
Null Zone Amplifier Recipe
TITLE CARD

About this Mod

TITLE CARD

A fully survival-friendly Backrooms experience for Minecraft.

Based on entries from the Backrooms wiki, our mod aims to recreate the many levels of the Backrooms while staying true to Minecraft’s gameplay and atmosphere.

While we draw inspiration from Kane Pixel's series and other online horror media, our mod is solely based off of the Backrooms Wiki and we try our best to maintain lore accuracy. This means no cheap jumpscares no random monsters.

What To Expect

  • Multiple explorable Backrooms levels based directly on wiki lore
  • Fully playable in Survival Mode
  • Resources and progression integrated naturally into each level
  • Multiplayer-friendly exploration with friends
  • Compatibility-focused design intended to work well alongside other mods
  • A vanilla-style gameplay philosophy with no forced thirst, sanity, or overly complex mechanics

This mod is designed to feel like it belongs in Minecraft not add new mechanics or vastly change the experience of the game.

Current content

  • Level-0
  • Level-1
  • Your choice of nocliping(Enabled in config) or a portal to access the backrooms
  • All unique blocks and items
  • The Ability to survive indefinitely within the backrooms just like the nether

Note: More content is currently being worked on with level 1 comming soon

modrinth discord-plural

Development

This isnt just another mod hopping on the trend. Its a mod made by people who have spent many hours reading backrooms wiki pages, and consuming other online horror media. (HUGE creepcast fans btw)

At the moment, only Level 0 is available - but this is only the beginning. New levels, mechanics, entities, and features are planned for future updates as development continues.

Building a massive, lore-rich Backrooms experience takes time, and we appreciate everyone who joins us early in the journey.

Your feedback, ideas, and support help shape the future of the mod.

Made with MCreator

credits

  • 2clerway (modrinth icon & banner)

Available Versions

Backrooms: The Complex 0.1.3beta
MC 1.21.1neoforge
June 11, 2026
Backrooms: The Complex 0.1.2beta
MC 1.21.1neoforge
May 30, 2026
Backrooms: The Complex 0.1.0 (Beta)beta
MC 1.21.1neoforge
May 12, 2026

How to Install Backrooms: The Complex on Your Server

1

Order Server

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

2

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

3

Install Mod

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

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Backrooms: The Complex server crashes on startup – what to do?

Most common cause: wrong neoforge 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 (1.21.1). You can switch loaders with one click in the panel.

Is Backrooms: The Complex compatible with neoforge?

Backrooms: The Complex officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Backrooms: The Complex – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Backrooms: The Complex 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 Backrooms: The Complex with just one click on your server.

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

Details

License
Apache License 2.0
Server-side
Required

Supported Versions

1.21.1