No Nether RoofSpawns
by yawsvitere
No Nether RoofSpawns stops hostile mobs from spawning on the Nether roof while leaving friendly mobs untouched.
What it does
Above Y=128 in the Nether, the mod stops hostile mobs from spawning, focusing on the roof zone where farms are commonly constructed. Passive animals, tameable mobs, villagers and golems are kept, so spawning there behaves as it does in vanilla for those types. The mod works through an entity load event, which keeps its effect on server performance minimal.
Survival servers seeking to block roof farms, builders who want an uninterrupted Nether roof, and modpacks that require tighter Nether spawn control all have reasons to use it. Installation means placing the jar file in the mods folder, and the default setup works out of the box without any configuration. Fabric API is required and must be installed alongside it.
No Nether RoofSpawns is server-side only, so players join without installing anything. It is released under the MIT License, and the code is not open source. Files are published for 1.21.7 only, with version 8.0 as the latest file, released on 2025-07-20.
Key features
Hostile spawn blocking
Hostile mobs are prevented from spawning above Y=128 in the Nether, which stops spawns on the roof.
Friendly mobs preserved
Passive, tameable mobs, villagers and golems can still spawn in the Nether roof area, unchanged from vanilla.
Narrow scope
Only the targeted spawns are affected, so other game mechanics keep their vanilla behavior.
No setup needed
The default settings work without any configuration, and the mod is added by dropping the jar into the mods folder.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Server owners running Fabric survival or SMP worlds, players building on the Nether roof, and modpack authors who want to control Nether mob spawns.
How it compares
Amplified Nether Fix Biome is server-side only and targets Fabric 1.21.1, but its license is All rights reserved and it is not open source. Roofify is client-side only, open source under the MIT License and covers 1.21 – 1.21.8 on Fabric, so it runs on a client without touching the server. Accessible Nether Roof is a client and server mod for Fabric and NeoForge across 1.20.1 – 1.21.1, released under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| No Nether RoofSpawns | Fabric | 1.21.7 | Server-side only | 2025-07-20 |
| Amplified Nether Fix Biome | Fabric | 1.21.1 | Server-side only | 2026-04-13 |
| Roofify | Fabric | 1.21 – 1.21.8 | Client-side only | 2025-10-30 |
| Accessible Nether Roof | Fabric and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2024-12-18 |
Questions
Does No Nether RoofSpawns need Fabric API?
Does the server need the mod, or do players too?
Which game version does the mod support?
Is the mod configurable?
In the catalog
No Nether RoofSpawns is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 13,697 mods support Minecraft 1.21.7.
Similar mods
What the author says
Blocks all hostile mob spawns above Y=128 in the Nether dimension Preserves friendly mobs (passive, tameable, villagers, golems)
Official listing
- Modrinth page
- modrinth.com/mod/no-nether-roofspawns
- Owner
- yawsvitere
- Published
- 2025-07-20
- Updated on Modrinth
- 2025-07-20
- Facts verified
- 2026-10-15