Bad Mobs

Bad Mobs

A mod to blacklist mobs from spawning.

by
875.2K Downloads
forgeneoforgeutility
Rent Server with this Mod

About this Mod

This mod provides a simple way for you to disable natural mob spawning. Once the mod has been installed you can modify the generated config file to disable spawning behaviour.

Usage Guide

  1. Download the mod from CurseForge and install it to your mods folder.
  2. Run the game or server once. After it has been loaded close the game.
  3. Locate the badmobs config file in the config folder for your game. This will be in the same location as the mods folder but not inside the mods folder.
  4. The config file can be edited with a text editor. Every registered mob will have options pregenerated for you. Once you have changed the file to your liking save the file and start the game again.

Known Issues & Common Issues

  • In Minecraft 1.19.3 and below disabling normal spawns will also disable spawners and spawn eggs. This stems from a bug in Forge that causes unreliable spawn information to be given to mods. The Forge team has fixed this bug on 1.19.4 and above however older versions will not receive this fix. This issue will not affect users on 1.19.4+.
  • The mobs still spawn but they are invisible? This is caused by the server not having the mod installed or the server having a mismatched configuration file. You will need to ensure the server is set up properly to resolve this issue.
  • This mod is required on both the client and server. You may be able to run it server side only however this use case is not supported.
  • Want to make a zombie apocalypse modpack using this mod? I don't know why people keep asking me how to do this at least once a weak. That's not what this mod is for. You can disable everything except for zombies but there are better mods for that.
  • My config file is being reset when I launch the game? This is caused by Forge detecting an error in your configuration file and resetting the file back to the default. This is user error and you will need to figure out how to properly edit the file.

Nodecraft sponsor banner

This project is sponsored by Nodecraft. Use code DARKHAX for 30% off your first month of service!

Available Versions

BadMobs-neoforge-1.21.1-21.1.1release
MC 1.21.1neoforge
October 1, 2025
BadMobs-Forge-1.20.4-12.0.1release
MC 1.20.4forge
January 13, 2024
BadMobs-Forge-1.20.3-11.0.1release
MC 1.20.3forge
January 10, 2024
BadMobs-1.19.4-18.0.1release
MC 1.19.4forge
June 8, 2023
BadMobs-1.19.2-16.1.3release
MC 1.19.2forge
June 8, 2023

How to Install Bad Mobs on Your Server

1

Order Server

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

2

Set forge Loader

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

3

Install Mod

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

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.1, 1.20.4, 1.20.3 (+23 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Bad Mobs server crashes on startup – what to do?

Most common cause: wrong forge 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 Bad Mobs compatible with forge and neoforge?

Bad Mobs officially supports forge, neoforge for Minecraft 1.21.1, 1.20.4, 1.20.3. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Bad Mobs – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Bad Mobs 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 Bad Mobs with just one click on your server.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU Lesser General Public License v2.1 only
Server-side
Required

Supported Versions

1.21.11.20.41.20.31.19.41.19.21.19.11.191.18.21.18.11.18+16 more