Minecraft Java 1.21 Mods
Browse 35 free mods for Minecraft Java 1.21 — popular picks include Zombie Nightmare Expansions - Undead Horror Monsters, Zombie Horsemen, Brutal Nightmare : Insane Difficult.
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Zombie Nightmare Expansions - Undead Horror Monsters
Adds various creepy undead entities with unique mechanics and intricate designs
Zombie Horsemen
Zombie Horsemen is a Minecraft datapack that introduces a new surprise event similar to the Skeleton Trap. When triggered, a zombie riding a zombie horse, equipped with an iron helmet, iron axe, and shield, will spawn to challenge players.
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.
MC: Zombified
MC: Zombified turns your Minecraft world into a zombie apocalypse! Only zombies will spawn, even in the Nether, replacing all other hostile mobs.
Zombie Tactics 2
zombie getting crazy
Undead Leather
Just another rotten flesh to leather mod.
Plants vs Zombies:Gospi Edition ( PvZ:GE )
This is my modification that adds plants and zombies in forge 47.2.0
Adult Zombies Only
Replace all baby zombies and similar with adults! Toggleable
Zombie Tactics
An overhaul of zombie AI, which allows them to break blocks and improves their tracking.
Home Lawn Security
A mod that aims to add Plants vs Zombies' versus mode to the game.
ZombieApocalypseSSS
ZombieApocalypseSSS is a comprehensive Minecraft plugin that transforms your server into a thrilling zombie survival apocalypse. Featuring advanced zombie AI, evolving variants, player infection mechanics, psychological horror elements, and dynamic events
Villagers Drop Eggs
This datapack makes villagers and zombie villagers drop spawn eggs. It's great for transporting those mobs.
CustomDisasters
Custom Disasters is a Paper plugin that adds dynamic world events like Blood Moons, Zombie Apocalypses, and Nether Breaches, each transforming gameplay with unique mob behavior and atmospheric world effects.
Zombalypse
A zombie apocalypse plugin, it also adds "custom" zombies.
Nice Life: Eternal Winter
Make your world a winter apocalypse, snow covered Overworld + snow piling effect. Inspired by the Life series and Grian!
The Zombie Apocalypse Mod
Turns your game into a zombie apocalypse game
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.
Minecraft but Every Mob is a Chicken Jokey
Transforms most living mobs (e.g., zombies, cows, creepers) into chicken jockeys (also dragon jockey)

Immersive Pillagers
Face pillager hordes, explore hostile camps and lost labs, battle undead illagers, and uncover the secrets of the totem.
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.
Chicken Jockifier
A Minecraft Movie based data pack that turns adjacent baby zombies and chickens into chicken jockeys
Sweet Apocalypse Biome
Dive into a world transformed by confectionery chaos with the Sweet Apocalypse Biome mod!
ConvertIT
Cycle between Zombie Villager and Villager with ease!
Sunlight Burn
A datapack that adds a new challenge to Minecraft by causing you to burn in the sun like undead mobs.
Undead Transformation
Zombie transform into husk if died by the sun and skeleton transform into bogged if in contact with water for too long
NoZombieVillagerCure
Prevents Zombie Villagers from being cured
Remove Lava Chicken Drop
Removes the "Lava Chicken" disc from the Zombie loot table.
ZombieVillager
Turns Zombies into Villager Zombies
NotQuiteDead
Become a zombie, husk, and drowned in survival!
F*** baby zombies
Makes baby zombies exactly 1.001 block tall, severely nerfing them by preventing them from going through 1 block gaps.
Zombies attack Pink Sheep
Like in A Minecraft Movie, zombies will attack pink sheep
Cursed Coin
A cursed item of unknown purpose. Rarely dropped by zombies and skeletons. Use it… if you dare.
simulator infection epidemic crisis
apocalyptic zombie infection simulator that transforms servers into a pandemic survival experience. Features progressive infection spread, contaminated players, quarantined villages, multiple zombie variants, vaccine crafting, and crisis events.
Rotten Apples
This Datapack Adds Rotten Apples to Minecraft, When you eat one near a mob with a Zombie Variant it Zombifys
Zombie Nightmare Expansions Mod (1.21.1, 1.20.1) – Undead Horror Monsters
Zombie Nightmare Expansions Mod adds multiple high-detail undead creatures with different mechanics, combat styles, and special drops. The mod is designed for horror, zombie apocalypse, RPG, and hardcore gameplay packs. Features: Undead Mobs Disemboweler Large heavy zombie variant Targets players and cows High melee damage Drops Deathly Heart Tormented Zombie Disguises itself as a normal […]