Minecraft Java 1.21 Mods
Browse 23 free mods for Minecraft Java 1.21 — popular picks include Zombie Variants, Brutal Nightmare : Insane Difficult, Barched.
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Zombie Variants
Add 15 variants of zombies that can appear in different biomes!
Brutal Nightmare : Insane Difficult
Minecraft too easy? Try this mods with nearly 40 modifiers - settings new mini bosses, which made minecraft become hard & insane. Enhanced hostile mobs' AI & Angry passive mob. Zombie place/break blocks. Skeleton,Spider,Creeper,Enderman.
Barched
Backporting Parched, Camel Husk, Zombie Horse, Spears and more features in 1.21.11 to 1.21.1!
ZombieApocalypse999
Zombie Apocalypse 999 is a comprehensive zombie survival plugin that introduces unique zombie mutations, an evolving threat system, player infection, custom crafting, safezones, and configurable gameplay mechanics.
Zombie Horses From Abandoned Villages
Zombie Horses spawn in the animal pens of Zombie Villages instead of normal animals They can also spawn as permanent babies or ridden by zombie villagers
XxCreeperxX's Zombie Expansion
A mod that adds various types of zombies, blocks, items, dimensions, mechanics and more
Plants vs. Minecraft
A Plants vs. Zombies mod.
Frankenstein Zombie
Expands zombies by adding a cemetery structure where a frankestein zombie can be created and leveled up. Additionally 4 new zombie types have been added
Vykket’s Zombie Mobs
Adds new zombified variants of animals, turning your world apocalyptic!
Disney Zombies
adds stuff from all four zombies movies (and some of 5)
The Zombie Apocalypse Mod
Turns your game into a zombie apocalypse game
Quest Dimensions & Mob Hunts
A Minecraft quest datapack focused on mob hunting, dimensions, and milestone-based rewards. Progress through separate quests such as Overworld, Nether, End, Boss, Zombies, Undead, Arthropods, Animals, and Total Hostiles. Earn bonus experience
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.
zzzZombie World
Makes the game only spawn zombies

Immersive Pillagers
Face pillager hordes, explore hostile camps and lost labs, battle undead illagers, and uncover the secrets of the totem.
Disable Zombie Sieges
Disable Zombie Sieges from spawning and messing up your village in all overworld biomes.
Pea Garden: a Plants vs Zombies mod
Adds Plants vs Zombies plants and items to your minecraft world
Zombie Expansion
A mod that adds various types of zombies, blocks, items, dimensions, mechanics and more
Unstable Nether Portal Strike
This Datapack adds the Null Nether Portal Strike from the Unstable SMP.By holding an nether star given from a command in description named null, nether portals will start spawning, zombies will come out.
The Legend Returns
Herobrine has returned. Cursed structures, shadow clones, epic boss fight, and dark portals await. Survive the apocalypse.
Luminous Monsters Mod (1.21.1, 1.20.1) – Fight Biome-Specific Undead
Luminous Monsters Mod adds 12 new types of Zombies and Skeletons to your world. These new monsters appear in different environments, making exploration more exciting and challenging. Features: Introduces 12 new variants for both Zombies and Skeletons. Each new undead mob spawns in a specific biome that matches its appearance. Screenshots: Minecraft mod menu displaying […]
Zombie Apocalypse by Murslav
The terrifying infection has started! Try to survive 18 new zombies with over 30 new items. You can also find 2 new biomes or 5 new structures. Good luck - good night!
Pie World
This modpack includes. Realistic health, cooking, animals, zombies/mobs.