ModsFinder

Revert Zombie Reinforcement

by Strange-Quark

Revert Zombie Reinforcement restores the zombie reinforcement behavior that Minecraft used before version 1.21.2, on servers only.

FabricForgeNeoForgeQuiltServer-side onlyMIT LicenseOpen source1.21.2 – 26.1.2

What it does

Since 1.21.2, zombies that spawn reinforcements pass on their own subtype, so a drowned or husk can call reinforcements that are also drowned or husks. The mod changes this so reinforcements always spawn a regular zombie, never a drowned or a husk. The change matters for copper farms, which rely on zombie reinforcements, and the mod is meant to make those farms work as they did before the change.

The mod is server-side only, so the server must install it, and clients need nothing unless they play a single-player world. It is a multiplayer mod that has to be installed on the server. Fabric API is required on Fabric, and the mod is published for Fabric, Forge, NeoForge and Quilt across 13 game versions, 1.21.2 – 26.1.2. It is released under the MIT License and is open source, with public links for the source code and issue tracker.

Key features

  1. Pre-1.21.2 reinforcement behavior

    Zombie reinforcements behave as they did before Minecraft 1.21.2, restoring the earlier spawning rules.

  2. Regular zombie reinforcements

    Reinforcements always spawn a regular zombie, never a drowned or a husk, whichever zombie called them.

  3. Copper farm reliability

    Copper farms that depend on zombie reinforcements are meant to run more efficiently and reliably.

Compatibility

Latest build for each game version and loader.

26.x3 of 3 versions with builds
26.1.22.0.0Not available2.0.02.0.0
26.1.12.0.0Not available2.0.02.0.0
26.12.0.0Not available2.0.02.0.0
1.21.x10 of 10 versions with builds
1.21.111.2.01.2.01.2.0Not available
1.21.101.1.11.1.11.1.11.0.0
1.21.91.1.01.1.01.1.01.0.0
1.21.81.1.01.1.01.1.01.0.0
1.21.71.1.01.1.01.1.01.0.0
1.21.61.1.01.1.01.1.01.0.0
1.21.51.1.01.1.01.1.01.0.0
1.21.41.1.01.1.01.1.01.0.0
1.21.31.1.01.1.01.1.01.0.0
1.21.21.0.0Not availableNot available1.0.0
ReleaseBetaAlphaNot available

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

Use cases

Copper farm servers

Server owners running copper farms built on zombie reinforcements can keep them working after the 1.21.2 change.

Who it’s for: Server owners who run copper farms or other builds that rely on zombie reinforcements, and who want the pre-1.21.2 behavior back. Players only need the mod on single-player worlds.

Questions

Does Revert Zombie Reinforcement need to be installed on clients?

No. The mod is server-side only, so clients need it only in a single-player world, where the server and client run together.

Which loaders does Revert Zombie Reinforcement support?

Fabric, Forge, NeoForge and Quilt. On Fabric the mod requires Fabric API, and the latest Forge file is 1.1.1 for 1.21.10.

Which game versions are covered?

Thirteen release versions, 1.21.2 – 26.1.2, from 1.21.2 up to 1.21.11 and then 26.1, 26.1.1 and 26.1.2.

In the catalog

Revert Zombie Reinforcement is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 15,189 mods support Minecraft 26.1.2.

Mobs mods11,058Fabric modsMods for 26.1.215,189

More from Strange-Quark

All projects
Stashlight1.21.10 – 26.1.2Variable Copper Bulb Signal1.21 – 26.1.2Analog Redstone Lamp1.21.2 – 1.21.11Drenched Wings1.21.10 – 26.1.2

Similar mods

[EMF] Entity Model Features1.18.2 – 26.3L_Ender's Cataclysm1.19.2 – 1.21.5Guard Villagers1.16.5 – 26.3Animal Feeding Trough1.16.5 – 26.3Just Enough Breeding (JEBr)1.15.2 – 26.3TslatEntityStatus1.16.5 – 26.3

What the author says

A lightweight Minecraft mod that restores the zombie reinforcement behavior from version pre-1.21.2.
Strange-Quark, on the Modrinth page

Official listing

Owner
Strange-Quark
Published
2025-07-10
Updated on Modrinth
2026-03-29
Facts verified
2026-10-15

Tags

Game mechanicsMobsUtility
Open on ModrinthCompare