CurseForge · Minecraft mod
Mob Tag Fixes
Adds modded mobs to the vanilla entity type tags they belong in, so Smite, raids, and Bane of Arthropods work on them.
Quick answer
Which Mob Tag Fixes release should I use?
Mob Tag Fixes 1.0.0 NeoForge (1.21.1) targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Mob Tag Fixes required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Mob Tag Fixes 1.0.0 NeoForge (1.21.1) need?
Mob Tag Fixes 1.0.0 NeoForge (1.21.1). Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Mob Tag Fixes without breaking your instance.
Built for Mob Tag Fixes 1.0.0 NeoForge (1.21.1). Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Mob Tag Fixes 1.0.0 NeoForge (1.21.1). It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Mob Tag Fixes 1.0.0 NeoForge (1.21.1). It opens that exact file at the source.
About this project
What does Mob Tag Fixes add?
Mob Tag Fixes
A small NeoForge mod that adds modded mobs to the vanilla entity type tags they belong in, so vanilla combat mechanics work on them. Pure data and tags, nothing is patched or mixin'd.
What it does
A lot of vanilla combat behavior is decided by entity type tags. Smite and the healing and harming effect use minecraft:undead, raids and Bad Omen use minecraft:raiders, and Bane of Arthropods uses the arthropod tag. However, a modded mob is only in those tags if its own mod added it there, and many mods do not, so a modded skeleton takes no extra damage from Smite and is healed by a Potion of Healing, a modded illager is skipped by raids, and Bane of Arthropods does not work on a modded spider.
Mob Tag Fixes adds those mobs to the tags they were left out of. Every entry is soft, so a mod you do not have is skipped instead of causing an error, and the vanilla tags are extended rather than overwritten.
What it covers
Undead covers the summoned skeletons, zombies, and draugr from Iron's Spells, Cataclysm Spellbooks, Traveloptics, and GameTechBC, along with the undead from Born in Chaos, Alex's Mobs, Alex's Caves, and Mutant Monsters.
Raiders and illager covers the Iron's Spells Archevoker and the It Takes a Pillage bandit faction.
Arthropod covers the modded insects and crustaceans from Alex's Mobs, Ars Nouveau, Cataclysm, and Iron's Spells.
Config
A per mod config at config/mob_tag_fixes-common.toml turns off any mod's additions, with the clear entries and the borderline ones like spirits, pumpkin knights, and headless types split into separate switches, so you can keep what you want and turn off what you do not. Set a group to false and those mobs stay out of the tags. A datapack can also remove individual entries, since the additions are plain tag files.
Notes
Server side only. No hard dependency on any supported mod, and it is safe to add or remove from an existing world. It works alongside Extra Damage Enchantments if you use that for its extra damage categories.
Requirements
Minecraft 1.21.1, NeoForge. Everything else is optional.
License
MIT
Project description from CurseForge.
Pick your setup
Mob Tag Fixes by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Mob Tag Fixes versions and loaders
Mob Tag Fixes 1.0.0 NeoForge (1.21.1)
mob_tag_fixes-1.0.0.jar
12 Jun 2026
Looking for an older file? The official CurseForge project page is in Resources.