
The Complex
"And the more times it remembers something, the less it does."
Screenshots


About this Mod
Do you want to prank your friends by putting them into liminal purgatory?
This is the mod for you!
This mod adds various Backrooms-themed blocks for you to build your own winding disconjoined maze of fluorescent lights and ugly carpet. Or... you could use them for your house. We don't judge here.

I found something.
Okay.
What did you find?
Found a place.
It's massive in there.
And it just goes on and on and on.
All these rooms.
This place builds them.
Actually, more like it... remembers them.
And the more times it remembers something, the less it does.
Available Versions
How to Install The Complex on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "The Complex". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8, 1.21.4
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
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 3 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 The Complex compatible with neoforge?
The Complex officially supports neoforge for Minecraft 1.21.8, 1.21.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with The Complex – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if 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.
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Install The Complex with just one click on your server.