Backrooms blocks and stuff

this mod adds new building blocks, which look like they're from the backrooms

69 Downloads

neoforgedecoration

Rent Server with this Mod

Screenshots

About this Mod

this mod adds new building blocks, which look like they're from the backrooms. The mod has the classic yellow walls, floor and ceiling from the backrooms level 0, blue and gray versions of them and pool bricks from the famous poolrooms (level 37).

Available Versions

Backrooms blocks and stuff 1.0.0release

MC 1.21.1neoforge

June 6, 2026

How to Install Backrooms blocks and stuff 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 (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Backrooms blocks and stuff". 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

4 GB(min. 3 GB)

Frequently Asked Questions

Backrooms blocks and stuff 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 (1.21.1). You can switch loaders with one click in the panel.

Is Backrooms blocks and stuff compatible with neoforge?

Backrooms blocks and stuff officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Backrooms blocks and stuff – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Backrooms blocks and stuff 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.