Minecraft Java 1.21 Mods
Browse 506 free mods for Minecraft Java 1.21 — popular picks include Jeck230NOTREALWORLD, Nice End Mobs, Diary of an 8-Bit Warrior.
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Jeck230NOTREALWORLD
AI-generated horror mod that adds the mysterious entity Jeck230, disturbing sounds, and a strange “not real world” atmosphere.
Nice End Mobs
Mob additions for the End Dimension to make it a more interesting place to explore.
Diary of an 8-Bit Warrior
Experience Aetheria like a Terrarian! Complete quests, kill bosses, and level up your skills! Maybe you'll even meet Runt and his friends…
Ravents
🗸 Ravents for custom mechanics. Design multi-wave raids with complex triggers, create unique mobs with modified stats, gear, and mounted towers. Spawn control: Replace vanilla mobs or add custom copies.
Salinity
A New Cave Biome, a New Armor, a New Mob, and more.
Cool End
This mod adds new biomes, structures, mobs and resources to the End and Overworld, expanding exploration and improving gameplay and visuals.
Dimensions+
Enhance your adventure with new features, creatures, and challenges in this Minecraft mod.
Quiet Pale Gardens
Only The Creaking will spawn in the Pale Garden in your world.
Jonshu's desert dungeons
This data pack introduces a new dungeon pool, the Desert Dungeon! This is a desert-themed structure that is a dangerous area & suggested to enter with iron or diamond gear
Nice Blockhead Mobs
Adds cute, little Mobs (and 1 new Boss) made out of Miniblocks. No Ressource Pack required.
Ice Age
Covers the entire world in snow
Creatures Dominion
This is a mod that will have a lot of animals and even extinct ones. It is not released yet and neither finished. Please give suggestions and report bugs to me please! I hope you enjoy the mod!

Enter the Bungeon
Completely rewrites Minecraft into a Roguelike Dungeon Crawler

FinalPiece
Adds content from One Piece (anime)
Candid - A True Adventure
Welcome to Candid! This project adds structures, enchantments, and all things catering to a true adventure. It's built as a companion to True Survival Mode, but can be played independently.
MobMons
Do you want to use Minecraft mobs as Pokemon? Now you can!!! :D
BetterCustomDrops
CustomDrop allows you to create custom drops from blocks and mobs
More Villages Datapack
Adds more villages to the game.
Dimension emptiness
Prepare yourself for a harrowing journey with the "Dimensions void" data pack! This pack introduces a nightmarish dimension known as the Void, a realm where no soul remains after the inevitable demise of all living things. Here, darkness reigns supreme, an
The Dababy Modification 2
Explore an alien dream like world, encounter unique mobs, use new mechanics, and see Dababy's face on every texture
XxCreeperxX's Zombie Expansion
A mod that adds various types of zombies, blocks, items, dimensions, mechanics and more
Dragonights
The official Minecraft mod for the Dragonights TV series, developed and maintained by J9 Studios and representatives of the Dragonights franchise.
Gelaria
Frozen world dimension + many ice and snow variants, including slabs, stairs and walls, new creatures and unique game mechanics.
Advancement Tracker
A Minecraft mod that allows for better advancement progress tracking with detailed insights for biome exploration, animal taming, breeding, food consumption, and monster hunting.
World Expansion
This mod upgraded vanilla biomes and adds new ones for a more interesting journey around the world! Update 1.0.0 - Savanna and Dark Forest
eyes.everywhere
A small horror mod that stalks you with more than two eyes. (Not a dweller)
Soulified
In the world of Dark, mercy is a myth, and every shadow hides death. Git gud, or die trying
The Sweetland
This mod adds a new explorable dimension to the game, The Sweetland, a world where almost everything is made out of candy.
RogueCraft Plus
An addon to the RogueCraft datapack! Adds new abilities, structures and a boss!
Kopeyka's Bunker Mod
A mod about nuclear and bunker things.
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
XMobGeneration
A powerful Spigot plugin for managing custom spawn areas with WorldEdit integration and GUI Support, Limit of 45 areas
Wild Wonders
A Beta mod that improves world generation and adventure!
Infested Netherrack & End Stone
INFESTED Netherrack & End Stone to End and Nether Dimensions with Spawn Mob System (Endermite and Blaze) (infected)
Peaceless
An enemy mod set in the Species universe that adds new mobs with fun mechanics and drops