Fabric Mods for Minecraft 1.21
Browse 88 free Fabric mods for Minecraft 1.21 — popular picks include Zombie UUID Preservation, Immortal Villagers, Zombie Horde Event + Kamikaze Anti Skybase Phantoms.
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Zombie UUID Preservation
Preserves randomized villager textures after zombification and curing.
Immortal Villagers
Prevents villagers from taking damage, dying, and turning into zombies and witches. Includes options to cycle trades and educate nitwits.
Zombie Horde Event + Kamikaze Anti Skybase Phantoms
A server side only fabric mod that that adds a horde event that happens every 7 ingame days.
Frozen Zombies
Adds the Frozen Zombie from Minecraft Dungeons.
Simple Baby Zombie Remover
Prevents Baby Zombies spawning. That's it.
Zombie Villager Variants
Drowned and husk variants for the zombie villager.
CrazyZombie
This is a Minecraft 1.21 fabric mod. The main enhancement of the original zombies is to make zombies spawn in both the Overworld and the Nether Zombies no longer burn during the day, can swim in water, can place and destroy blocks to chase.
No Outbreaks
Tired of those Zombie Sieges? Let's remove them!
Jungle Zombies
Adds the Jungle Zombie from Minecraft Dungeons.
Bouldering Zombies
Adds the Bouldering Zombie from Minecraft Earth.
Lobber Zombies
Adds the Lobber Zombie from Minecraft Earth.
Better Rotten
BetterRotten adds a small but immersive way to recycle rotten flesh instead of letting it pile up in chests. Turn zombie drops into useful leather scraps, combine them back into full leather, and integrate the cycle into your survival progression. The mod
ZApocalypse
ZApocalypse is a Fabric mod for 1.21.1 that turns every night into a zombie wave, with elite variants, blood nights, and a Zombie Lord boss. As the apocalypse escalates, zombies evolve unique abilities while other hostile mobs retreat deep below Y=25.
Shogun's Blast - Undead & TNT
Explore haunted Japanese villages, battle explosive Oni Warlords, and defeat the Council of Leaders in this immersive RPG structure and combat mod.
creeper-apocalypse
Mob Replacement System ALL mobs spawn as Creepers! with exceptions Exceptions that remain normal Blazes you still need blaze rods! Villagers or trading Ender Dragon final boss remains Iron Golem
Minecraft but Every Mob is a Chicken Jokey
Transforms most living mobs (e.g., zombies, cows, creepers) into chicken jockeys (also dragon jockey)
SG Mob Spawn
A mod that adds mob spawns for higher difficulty like illusioners, zombie horses, cave spiders, etc.
Toggle Baby Mobs
Craft an Age Potion to toggle mobs between their baby and adult versions. Works on villagers, zombies, cows, and many other entities.
Leader Zombie Tweaks
[OBSOLETE] Appearance & stat changes to leader zombies, addon to Zombie Improvements
S4mus Possession
Possess and play as many different Minecraft mobs, each with custom abilities, sounds, movement, and aggro behavior. Zombies, skeletons, illagers, wardens, breezes, endermen, wolves, piglins, pandas, and more all have unique mechanics.
Baby Zombie Removal
A mod that removes baby zombies made for fabric 1.21.8
CrombieMod
Renames Zombie to Crombie. lol
Burvy's Zombies
Smart, Destructive, and Performant Zombies
Zombie Enhanced
Zombies are now more dangerous, with special items — from a pickaxe that breaks blocks to an anvil that stuns players.
Rotting Away
Undeads are infectious. Play this new twist on infection mods.
[Y] Apocalypse Zombies
This project adds brand new Zombies straight out of the Apocalypse! Part of the [Y] Apocalypse Modpack. Currently still in development.
ConvertIT
Cycle between Zombie Villager and Villager with ease!
Emeralds Galore
Emerald Ores and Zombie Villagers drop more Emeralds
Zombieium
Zombieium adds configurable night-time zombie waves and an optional boss encounter with a red warning beam, fiery arrival effects, and unique drops.
FLESH & ASH
Uncover the horror of the Flesh and Ash. Face an evolving army of bloody zombies and strange grey leaders!
Horde Moon 2
Adds a Zombie Horde Mood to Enhanced Celestials 2
Undead Alliance
Turn zombies into loyal companions with trust, personality, and smart AI. Recruit, command, and survive together in Minecraft.
Undead Transformation
Zombie transform into husk if died by the sun and skeleton transform into bogged if in contact with water for too long
Get Ricked
A fabric mod that adds an enchantment that spawns helper zombies, called "ricks", that help you defeat the enemy

Zombie Syringe
a syringe that can transfer zombie (husk,drowned) blood to villagers
The Legend Returns
Herobrine has returned. Cursed structures, shadow clones, epic boss fight, and dark portals await. Survive the apocalypse.