Minecraft Java 1.21 Mods
Browse 1,580 free mods for Minecraft Java 1.21 — popular picks include Help Me Hardcore, Perfect Gen, oCode-AnarchiaBosses.
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Help Me Hardcore
Help Me Hardcore Adds All Kinds of Extra Challenges from Community Ideas to Full-Themed Updates for Your Hardcore Worlds or Even Hardcore SMP Servers!
Perfect Gen
This modpack redefines the experience of exploring and reshaping the world. Packed with light RPG elements, this pack brings adventurous spirits together with captivating quests, mythical creatures and immersive world-building.
oCode-AnarchiaBosses
Create custom bosses with skills, attributes, equipment and more!
GTA Horse Logic
Horses smoke when damaged based on health, then explode dramatically. Inspired by how cars behave in GTA.
Cataclysmic Ascension
Cataclysmic Ascension is a high-powered Minecraft 1.21.1 modpack that challenges players to rise through a world of chaos, monsters, magic, and ancient relics, combining intense combat, deep progression, and immersive exploration across dimensions.
oSzoukaua's: Invisiward
Do you hate yourself? Do you want a "real" challenge? have you considered... invisible Wardens?

BloodInfection999
Delve into a world ravaged by a terrifying blood infection, where once-peaceful creatures are corrupted and your own survival is constantly under threat.
One Enough Damage
Freely adjust mob damage, hardcoded damage and many skill-based damage.
Rabbdudes Origins
This Is A Mod That Adds Some Of My Custom Origins To The Game
ROLO Edition
Dive into an epic Minecraft RPG adventure! Choose your class, explore magical lands, complete quests, fight custom mobs, and level up with skill trees. Discover dungeons, secrets, and factions in a rich, story driven world.!
Shielding Swords
A light weight pack that adds the sword block mechanic, Similar to minecraft update 1.8, you can now block attacks using your sword and neglect part of the damage and knockback dealt to you. Brilliant!
The Angry Ghast
Three new Ghast themed bosses, one for each dimension

Old Legends
The remains of old legends wait to be discovered
Random Size Mobs
Mobs spawn with unique random sizes, affecting their HP, damage, and loot. Includes dynamic growth mechanics!
Relentless World
Transforms the game's challenge by introducing a seamless, ever-evolving scaling system. As you play, survive, and conquer, the world grows stronger with you. It includes the features and elements from Apotheosis, Iron spell books and TacZ.'''
Monsters Magic and Missiles
{WIP} Im using fear the Nightfall as a base modpack and adding more magic,and modern weapon mods as well as ad astra and various ~realistic-ish additions
stupid baby mod
!! LOUD NOISES !! a mod that adds a bunch of different baby mobs, items, blocks, weapons.
Simple Gravity Changer
This datapack adds a function to change the gravity of the world.

Allay Companion
Replaces the totem of undying with an animated allay entity that moves around with you.
Stats Surge
An RPG-style progression mod where you collect Blood from mobs to upgrade stats like Vitality, Strength, and Agility.
Withering AI Tweaks
Allows Withering Heights to work with Mob AI Tweaks' Wither rework
FullXaos_RPG
⚔️ RPG skills & dungeons 🌋 Portal dungeon RPG ⚡ Optimized RPG plugin 🏰 MCMMO-style RPG 🌀 Skills & portals RPG
Age Switch
Allows you to change the age of mobs using a name tag. Naming them “Baby” turns them into babies, while “Adult” restores their adult form.
More Animals [NEOFORGE] - Overhauled
More Animals Overhauled - tech mods, some magic, and tons of animals and biomes to explore.
Races (Fantasy Races)
Races/Origins Datapack by Evilonesw
sibliths rideable phantoms
Use two enderpearls and a clock to summon a giant rideable phantom!
Liminalcraft
Now with the Aether! Exploration based with new dimensions, mobs, magic, and more, with a focus on performance
Random Junk
A mod filled to the brim with random meme features
Super Survival | By: Reb2y
Impressive survival with new biomes and new mobs!
Enderman Support Class
Allows endermen to aid nearby hostiles in their fight against the player!
Dangerous Nights
Every night without sleep makes the world more dangerous. Survive growing monster hordes, defeat minibosses, and earn stronger rewards as your streak rises.
Terraria Items
This project adds some items and weapons from Terraria and the Terraria Calamity Mod into Minecraft.

Aetherium Items
Adds magical scrolls that grant unique abilities to weapons, turning ordinary gear into powerful tools of combat, mobility, and control.
Saltcraft
A mod adding salt biomes, mobs, structures and blocks into Minecraft
Rain Randomizer
Makes it rain almost everything in Minecraft! From common blocks to dangerous mobs and rare loot.
Floristry
A mod about bees and breeding, but not like that.