ModsFinder

Custom Mob Spawns (Renewed!)

by MegaBytesMe

Custom Mob Spawns (Renewed!) lets server owners configure which mobs spawn in a world, using a simple set of spawn rules.

FabricClient or server, optionalMIT LicenseOpen source1.21.5

What it does

Custom Mob Spawns (Renewed!) is a Fabric mod for Minecraft 1.21.5 that changes which mobs appear naturally in the world. It is a fork of Custom Spawns, updated to run on 1.21.5 and later. The code is open source under the MIT License, and the source and issue tracker are public. Cloth Config API and Fabric API are required, and Mod Menu is optional for in-game settings.

Key features

  1. Configurable mob spawning

    Spawn rules let server owners decide which mobs can appear, with a simple configuration file.

  2. Support for 1.21.5 and later

    The fork updates the original Custom Spawns code so it works on the 1.21.5 release.

  3. Credited upstream work

    The author credits the original creator of the mod and later contributors who ported it to newer versions.

Compatibility

Latest build for each game version and loader.

1.21.51.2.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 2

Cloth Config APIConfiguration Library for Minecraft Mods
Required
Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

Optional 1

Mod MenuAdds a mod menu to view the list of mods you have installed.
Optional

How it compares

Full comparison

MobToggle is a Fabric mod released under All rights reserved, for 1.21.1 – 1.21.2, and is not open source. Simple Mob Switch is a server-side only Fabric mod for 1.21.5 under the MIT License, so only the server needs it.

ModLoadersGame versionsEnvironmentUpdated
Custom Mob Spawns (Renewed!)Fabric1.21.5Client or server, optional2025-06-03
MobToggleFabric1.21.1 – 1.21.2Client or server, optional2026-03-21
Simple Mob SwitchFabric1.21.5Server-side only2025-05-30

Questions

Does Custom Mob Spawns (Renewed!) need Fabric API?

Yes. Fabric API is a required dependency and must be installed alongside the mod, along with Cloth Config API.

Does the server need the mod?

Either side can run it, and neither needs it to play, so installing it on the server or on the client is enough.

Which game version does it support?

The latest Fabric file, 1.2.0, targets 1.21.5 only.

In the catalog

Custom Mob Spawns (Renewed!) is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 15,307 mods support Minecraft 1.21.5.

Mobs mods11,058Fabric modsMods for 1.21.515,307

More from MegaBytesMe

All projects
MineLights1.7.2 – 26.3

Similar mods

[EMF] Entity Model Features1.18.2 – 26.3Animal Feeding Trough1.16.5 – 26.3Just Enough Breeding (JEBr)1.15.2 – 26.3TslatEntityStatus1.16.5 – 26.3Nyf's Spiders1.12.2 – 26.1Spawn Animations1.16 – 26.3

What the author says

Fork of Custom Mob Spawns (which is a fork of Custom Spawns) that supports 1.21.5 and beyond. Credits to both b3spectacled for making the mod in the first place, and AzyLooper for updating it from 1.19.4 to 1.21.1. The mod's config files are located in config/custom-mob-spawn.json, alternatively if you installed the…
MegaBytesMe, on the Modrinth page

Official listing

Owner
MegaBytesMe
Published
2025-06-03
Updated on Modrinth
2025-06-03
Facts verified
2026-10-15

Tags

Game mechanicsMobsUtilityManagementOptimization
Open on ModrinthCompare