Minecraft Java 1.21 Mods
Browse 37 free mods for Minecraft Java 1.21 — popular picks include DivineRPG, Roguecraft, Nice Mobs Remastered.
Updated daily
DivineRPG
8 New Dimensions ♦ 115+ New Mobs/Bosses ♦ Hundreds of New Blocks and Items ♦ Unique Weapons and Armor
Roguecraft
A game changing data pack that aims to turn Minecraft into a Roguelite game, including new mechanics, a new final boss, upgrades, abilities and way more
Nice Mobs Remastered
Randomised mob equipment, 10 new mobs, 3 new bosses, a new late game dimension and more
Brutal Nightmare : Insane Difficult
Minecraft too easy? Try this mods with nearly 40 modifiers - settings new mini bosses, which made minecraft become hard & insane. Enhanced hostile mobs' AI & Angry passive mob. Zombie place/break blocks. Skeleton,Spider,Creeper,Enderman.
Vaults of Abandon
Conquer the Vault, in the Vaults of Abandon - Dungeon Datapack. Battle Epic Bosses, Explore vast dungeons, and utilize powerful magic. Access over 50+ Custom Items, and battle over 20+ Custom Mobs.
Void's Titans
This Datapack will add 28 new bosses and 4 new superbosses! The Titans are nothing short of walking calamities.
Ea Nasir's Items and Bosses Pack
Introduces new bosses, items, and more!
Create Echoes of the Great Derailment
Rebuild the Machine Age after the Great Derailment in a steampunk Create modpack with quests, staged progression, automation, colonies, bosses, exploration, custom mechanics, powerful machines, and a world full of secrets.
Manifestation of the souls
Manifest your soul as a stand, kill bosses, follow quest lines and find structures
Epic Bosses
A mod for epic bosses in minecraft that adds a lot of unique content.
Improved Spiders
Adds 4 new types of spiders that can spawn as well as a spider queen boss that spawns in new spider den structures and many new items.
Pirate Adventures
Pirates is a huge project for the Minecraft game in the form of a DataPack. By installing the required ResourcePack and the DataPack itself, you get a large number of new mobs, items, blocks, mechanics, and bosses.
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…
Nice Blockhead Mobs
Adds cute, little Mobs (and 1 new Boss) made out of Miniblocks. No Ressource Pack required.
RogueCraft Plus
An addon to the RogueCraft datapack! Adds new abilities, structures and a boss!
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
Elexir [CSD]
Step into ELEXIR - This modpack is magic, automation and adventure. Here you can explore the world as well as magic or mechanisms to make life easier. Ancient artifacts, bosses other worlds are created for gameplay variety
koper_mod
A chaotic Minecraft mod with unique bosses, broken armor sets, and a corrupted dimension a little unbalanced but fun as hell.

Techless
A Mod that adds 3 new bosses with unique phases Fight them to craft Legendary weapons in this Vanilla+ progression mod Made using Mcreator
Minecraft-The CATASTROPHE mod
Adds new bosses to the base game, and overhauls the progression

Hyrinity (Legacy)
An overall content mod adding progression, bosses, dimensions and more!
World's Whisper
Conquer shape-shifting bosses and craft elemental gear in a realm ruled by four mystical seasons.
SuperRH bosses
This mod adds some uh cool stuff like a very strong boss and a total red biome
UHC+
A data pack that adds in UHC, but with additional features like augments, special items/equipment, and bosses that spawn in during the game.
In the Journeys
The mods expand Minecraft further with new ores, mobs, biomes, dungeons, bosses, and magic to discover.
Trails of Forsaken Lands
Adventures, a lot of bosses, and crystals!
MagicAirdrops
Replace boring airdrops with new events with various rewards and bosses.
Godmode- wither rework
This mod entirely reworks the wither boss in minecraft, with custom loot, moveset, etc
Inferno World
Dimension, epic boss battle, and tools inspired by a magical hell
Artifacts and Bosses
This mod adds new gems that can be collected from 4 new bosses
Monsterwalll's Bosses And Stuff
A mod I made that adds Bosses, Structures and more! Note that this is my first mod so please comment what you think should be fixed in future mods.
Endorium Mod
Endorium is an end-game expansion mod for Minecraft that introduces a new mini boss, new wood type and new tier of equipment beyond Netherite.
BulsciCraft
Enjoy this brand new mod that adds New Dimensions, Mobs, Items, Blocks, Unusual things and even a bossfight...
Explorer's Journal
A chat-driven exploration journal. Discover biomes and structures, get notifications, details, toggle a bossbar, view your full journal with /trigger
KingCraft [FORGE]
Travel to a different planet? Fight new bosses? Discover new game mechanics? Welcome here.
The Fallen World
This mod adds things like dimensions, blocks, items, mechanics, bosses, mobs, structures and much more!