No Nether RoofSpawns

A lightweight Fabric mod that intelligently controls mob spawning on the Nether roof

56 Downloads

fabricdecorationgame-mechanicsmobs

Rent Server with this Mod

About this Mod

Key Features:

Blocks all hostile mob spawns above Y=128 in the Nether dimension

Preserves friendly mobs (passive, tameable, villagers, golems)

Zero performance impact - uses efficient entity load event handling

Perfect For:

SMP servers wanting to prevent Nether roof farms

Players who want to build on the Nether roof without mob interference

Modpacks needing controlled Nether spawns

Installation:

Drop the jar file into your mods folder

No configuration needed - works out of the box

The mod maintains perfect vanilla behavior while solving the specific problem of unwanted Nether roof mobs. Its surgical approach only affects the exact mobs you want to control, leaving all other game mechanics untouched.

Available Versions

No Nether RoofSpawns 8.0release

MC 1.21.7fabric

July 20, 2025

How to Install No Nether RoofSpawns on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.7).

Install Mod

Open the mod browser in the dashboard and search for "No Nether RoofSpawns". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.7

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

No Nether RoofSpawns 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 3 GB RAM is allocated and the loader matches the mod version (1.21.7). You can switch loaders with one click in the panel.

Is No Nether RoofSpawns compatible with fabric?

No Nether RoofSpawns officially supports fabric for Minecraft 1.21.7. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with No Nether RoofSpawns – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if No Nether RoofSpawns 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.