Minecraft Java 1.21 Mods
Browse 12,339 free mods for Minecraft Java 1.21 — popular picks include The Eye Caster, How Rotten!, Field Guide :Monster Check List.
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The Eye Caster
Challenge the most intelligent mob which is a farlander.
How Rotten!
How Rotten! adds a new infection mechanic from zombie mobs to the game!
Field Guide :Monster Check List
A monster checklist mod that integrates with Field Guide to track unlocked monsters, with milestone rewards and attribute boosts.
Tribes & Legions: Tame Mobs, Build Your Tribe!
Tribes & Legions lets you tame mobs, build your tribe, and manage companions through custom skills, equipment, progression, and a custom UI—while preserving their original abilities and combat styles.
EI Mythic MobsHook
This plugin connects MythicMobs with ExecutableItems, allowing you to use custom items as abilities and mob skills. Easily trigger ExecutableItems through MythicMobs mechanics, events, or drops. Perfect for RPG servers and advanced combat systems.
WheelOfChaos
A wheel that spins every 2 minuets that could give you a positive event or a negative event
CPT's NPC
This Datapack adds npc's to your minecraft world.
Oil Mod
Some animals(Pig, Cow, Sheep) will drop oil fat that can synthesize "powerful" incendiary oil bottles.
A Villager's Dream
The beginning of the Emerald revelation!
CosDuels
Duels is a powerful and optimized 1v1 PvP duel system designed for competitive Minecraft servers.
BlackCat's Villager Update
A mod made to add more (cursed) interactions with the villagers

Client Entities Lib
Library for creating and managing client-side entities
Void Beast
A mod filled with whatever I felt like adding at the moment! With a focus on exploration and collection, I'm sure there's something in the mod for you. If not, yeah that's fair.
Features & Tweaks
A Minecraft Datapack, that tweaks & overhauls some features of minecraft while also adding New Features that keep minecraft feel new!
Reflavored by SasquatchMike
A mod that seeks to enhance the vanilla minecraft experience!

CutieDrops
Transform mobs into cute babies and get magical loot drops!
Poachers
A mod that adds poachers to minecraft!
StaySmall
A Lightweight plugin to keep your mobs small and cute forever!
Back Off! Pillager!
A simple datapack that makes pillagers back away from their targets like piglins do
Resolve
A Handmade RPG in Minecraft.
MxSxC1 Passive Mob Invulnerability
This pack will make passive mobs Invulnerable. They cannot be killed, take damage, or be attacked. It also has a bonus mount "Shadow Step". This is designed for younger children who may be upset at the death of innocent animals, but will be expanded.
flaying
Flay your fallen foes. Mobs leave carcasses on the ground upon death, requiring a sword to harvest loot
Minks And Misfits
Adds some strange and unique mobs to Minecraft!
Froggo
Makes all name-tagged animals tameable! And when they are tamed, the become immortal!
taoist_with_15_dogs
一款能控制亡灵生物的道教法器模组A Taoist artifact module that controls undead creatures.
Tower Defense Mod
Two teams face off in an arena: defend your Nexus, build towers and walls, spawn mobs to attack the enemy, and use spells to turn the tide. The first team to lose their Nexus loses the game.
Tamable Baby Zombies
Baby zombies now have a tamable variant! Once you tame them, you get a one shot killing machine!
Craft The Villagers
Craft the Villagers with an easy, and cheap <3
Petrify an Oak Slab│石化一個橡木半磚
Added Petrified Oak Slab recipe.│添加了石化橡木半磚配方。
Simple Sheep
Makes sheep have a simple, chill, and aesthetic design
Cabela Mayhem
A mod that adds creatures to unlock and collect.
Servant: Sealbound Companions
Find rare prisoners, bind them with Easement Seals, and turn them into companions, assistants, or workers.
Viking sword
A fun summer expansion bringing new items, mobs, and a bright seasonal vibe to Minecraft.
Sand Drops
Makes Husks and Parched drop sand blocks
EmeraldOP
Emeralds are tooooooooo OP!!!!!!!!!!!!!!!!!!!!
Ominous Bottle Always
Simple Paper plugin that forces Ominous Bottles to always drop from raid captains.