Minecraft Java 1.21 Mods
Browse 44 free mods for Minecraft Java 1.21 — popular picks include Mutant Monsters, Complicated Bees, Mutants and Zombies.
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Mutant Monsters
The mutants are back! Face scary creatures and powerful beasts like never before.
Complicated Bees
Bees - but complicated. Mutations, crossbreeding, and genetics! Almost entirely data-driven, and very modpack-friendly.
Mutants and Zombies
This mod adds new Mutant and Zombie mobs (official reforge of Ryan's Zombies).
Cuter: Mutant Monsters
Resource Pack of that revamps the Mutant Monsters Mod in my art style.
Gigeresque
Gigeresque is a horror-themed mod that offers players a dive into the horrific biomechanical world of the xenomorphs, and the mutated realms of the neomorphs, deacons, and goo mutants.
Cobblemon EMI Compat
Cobblemon's recipes (campfire pot, brewing and berry mutation) native compatibility with EMI
![Mowzie's Mobs definitive [Mutant Monsters Compat]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/486156.webp)
Mowzie's Mobs definitive [Mutant Monsters Compat]
This is a mod for a modpack called Mowzie's Mobs that will add compatibility for Mutant Monsters. It will include changing the mutant zombie model to geckolib, making it easy to modify the animations and model with Kube.js or resource packs.
Mutant Mobs REMUTATED
This mod adds some Mutants
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.
Excalibur | Mutant Monsters
This is a support pack that converts Mutant Monsters Mod textures to better match the Incredible Excalibur ResourcePack.
Turtle Dynasty
Addon mod for Samurai Dynasty adding weapons of 2012 Teenage Mutant Ninja Turtles
Dissolver - Item Transmutation
Convert items into any other stored items based on its value (EMC).
ProjectE Rebalanced -Adjustment-
Rebalances ProjectE transmutation progression and overpowered items.
Dissolver Enhanced - Item Transmutation (EMC)
Convert items into any other stored items based on its value (EMC).
catch and tame
"Tame, capture, and carry literally ANY monster in Minecraft with the powerful new Tame Balls! Breed dynamic Mutants, build a Pet Hospital, and play fetch with exclusive custom dogs like Huskies, Golden Retrievers, and Boston Terriers!"
ProtoMP
The world has fallen. Manage thirst and radiation, wield modern weaponry, and engineer your survival against deadly mutants and bosses in a ruined world.
Grimm's Mod
Everything you could want! Leveling, features of old mods, economy, technology, custom items, blocks, commands, transmutation of items and even more!
Bare Mutants (Mutant Creatures X Bare Bones)
Trailer-Styled Mutant Mobs
Biomorphosis
A mod about mutations and evolution, where you control an organic ecosystem, creating structures and creatures from living matter. Harness biomass to develop your colony, but be prepared for the dangers your experiments may bring
Velorise EMC
A progression-focused EMC mod with transmutation, world tiers, alchemical machines, custom equipment, boss arenas, and endgame challenges.
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.
The Gifted
Unlock abilities by surviving danger, injecting powerful serums, or experimenting with alien tech and mutation.
FarmContest | Make Farming Fun Again | Mutation System
Allows to create a produce contest on the Paper server
UnleashedSMP
UnleashedSMP is a chaos and event plugin for Minecraft Paper servers, featuring 50+ admin-triggered events, random effects, and mutant mobs to create unpredictable, fun, and engaging SMP gameplay.
Materia-Reborn
A progression-focused Minecraft transmutation mod inspired by ProjectE, featuring Essence, upgradeable tables, rituals, storage, and smelting systems.
Ashen World
A Fallout-inspired survival mod for NeoForge that introduces radiation, mutations, contaminated environments, chem crafting, and dangerous evolutionary changes to your Minecraft world.
Mobs patch for vampirism
You need mutant monsters by the moment. Fixed behaviour for stray, husk and mutant monsters using mixin
mutationcraft-plus
Adds 24 random world mutations that completely change Minecraft every 5 minutes, making every survival adventure unique.
Replicator First Type
Evolving slimes harness solar energy and develop genetic mutations. Predatory spiders create evolutionary pressure. Features 12+ genes, horizontal gene transfer, DNA scanner. Watch natural selection in your Minecraft world!
Player Mutations
A behavioral evolution system that mutates players based on their playstyle. Every cycle (default 3 days), the plugin analyzes player behavior and triggers mutations that fundamentally change how they play.
Mutation Edges
Adds low-opacity red borders to Garden blocks to help with crop mutations.
Libri Mutationis
The Books of Changers, its in latin
Pathogen Monster Plague Mod (1.21.1, 1.20.1) – Mutants Take Over World
Pathogen Monster Plague Mod is a horror-style expansion mod that introduces a dangerous chemical infection which corrupts creatures and biomes, creating aggressive mutant lifeforms across the world. You must craft special gear and weapons to survive the spreading plague. Features: About 90+ unique mutant mobs, including corrupted vanilla creatures and biome variants World corruption system […]
Sophisticated Backpacks Container Blacklist Mod (1.21.1, 1.20.1) – Blacklist For Backpacks
Sophisticated Backpacks Container Blacklist Mod adds a blacklist option that you can configure to prevent backpacks from the Sophisticated Backpacks mod from picking up items from them. For example, you can add a container like ProjectE Transmutation Table to the blacklist, and the mod will prevent backpacks from picking items from them. Features: An add-on […]
Project Extended Mod (1.21.1, 1.20.1) – New Features to ProjectE
Project Extended Mod is a mod that adds features to ProjectE that EE2 would probably have had it been made in modern times. Features: Restricting Learning and Condensing Items that are prevented from being learned in transmutation tables and from being reproduced in energy condensers can still be used as fuel to provide EMC. Interdiction […]
ProjectE Mod (1.21.1, 1.20.1) – Never Mine for Ores Again
ProjectE Mod brings back the classic alchemy gameplay of Equivalent Exchange 2. It lets you break down unwanted items into a universal energy called EMC (Energy-Matter Covalence). You can then use this EMC to create almost any other item, turning useless materials into valuable resources. The mod includes famous items like Transmutation Tables, Energy Condensers, […]