Minecraft Java 1.21 Mods
Browse 142 free mods for Minecraft Java 1.21 — popular picks include No Zombie Nautilus ❌, Swapocalypse, Remove "Lava Chicken" Music Disc.
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No Zombie Nautilus ❌
Disable Zombie Nautilus in Minecraft by preventing its spawning and removing any that appear in the world
Swapocalypse
Play a fully customizable Death Swap game mode with unlimited players!
Remove "Lava Chicken" Music Disc
This simple datapack removes the drop of the "Lava Chicken" music disc specifically from Chicken Jockeys (baby zombies riding chickens).
Horse Traps (Re-Created)
Adds the new zombie horse trap and recreates skeleton horse trap.
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.
Zombie Have Eyes
Zombie Have Eyes — server-side mod for NeoForge 1.21.1. Zombies chase and attack only with direct line of sight — hide behind blocks to break aggro. Sneaking grants a distance-based chance to stay unnoticed. Compatible with Zombie Awareness.
Zombalypse
A zombie apocalypse plugin, it also adds "custom" zombies.
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.
Graveling Zombies
Zombies now drop gravel when killed, letting you double dirt easily and speed up your Skyblock builds!
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
Zombies Powerups
Zombies powerups from various Call of Duty titles
No Outbreaks
Tired of those Zombie Sieges? Let's remove them!
Nice Life: Eternal Winter
Make your world a winter apocalypse, snow covered Overworld + snow piling effect. Inspired by the Life series and Grian!
Vykket’s Zombie Mobs
Adds new zombified variants of animals, turning your world apocalyptic!
Shared Villager Discounts
Shares villager trade discounts with nearby players when a Zombie Villager is cured
Disney Zombies
adds stuff from all four zombies movies (and some of 5)
Zombie Drops OP Loot
Turn zombies into an overpowered loot source for intense and rewarding survival gameplay.
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.
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
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.
Chicken Jockey (Earth2Java Compat)
Inspired by 'A Minecraft Movie', this mod makes baby zombies seek out nearby chickens so they can become jockeys.
zzzZombie World
Makes the game only spawn zombies
Hard Diamond Challenge
Diamond ore doesn't exist anymore, it is iron instead, you can't craft diamond gear (you'll have to find it) and there are no villages (you'll have to find and cure a zombie villager)
EastZombies
Transform dead players into zombies with unique mechanics (humans vs zombies event)
SharedTrades
SharedTrades synchronizes villager trades and cured zombie villager discounts across all players on a server, making trading consistent and fair.
Minecraft but Every Mob is a Chicken Jokey
Transforms most living mobs (e.g., zombies, cows, creepers) into chicken jockeys (also dragon jockey)
Undead Horse Breeding
Breed Skeleton and Zombie Horses!
SG Mob Spawn
A mod that adds mob spawns for higher difficulty like illusioners, zombie horses, cave spiders, etc.
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.
ZombieSMP
Turns Minecraft into a contagious zombie survival experience: quadruple zombie spawns, explosive beds, and players who become zombies after infection. Perfect for custom server SMP events and dangerous nights.
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.
ZomBilliard Balls
Zombies drop billiard balls when killed by skeletons! Based on a weird dream I had one time.
corpseorigin
Corpse Origin is a Minecraft mod inspired by the web comic "Shen Xiong" (尸兄)/Zombie Brother, designed for Neoforge 1.21.1, introducing a core system of infection, mutation, and evolution.
Leader Zombie Tweaks
[OBSOLETE] Appearance & stat changes to leader zombies, addon to Zombie Improvements
Zombies Evolved
Implements many new zombie variants to bring about a greater sense of difficulty and challenge