Data Packs for Minecraft Java
Browse 231 free data packs for Minecraft Java — popular picks include Grave Destruction fix for "You're in Grave Danger" and "L_Ender 's Cataclysm" bosses, Roguecraft, Weapons of Cataclysm (L_Ender's Cataclysm + Weapons of Miracles/Epic Fight).
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Grave Destruction fix for "You're in Grave Danger" and "L_Ender 's Cataclysm" bosses
Literally just adds the YIGD grave tag to the files in the Cataclysm mod that are immune to the bosses, fixing the issue with the graves being destroyed
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
Weapons of Cataclysm (L_Ender's Cataclysm + Weapons of Miracles/Epic Fight)
Custom movesets to fight like a boss!
Annihilation Recreated
datapack that aim to recreate the boss Annihilation from the Wynncraft server
Gravestone Dungeons Data Pack
This data pack adds dozens of small and massive dungeons, bosses, custom loot, magic spells, many custom weapons, enchantments and much more!
Fishing Expansion
Enhance the fishing experience with more loot, new enchantments, new boss, real mob fishing, special fishes, turtle armor and more!
Mo-Variants
This datapack adds many new mob variants that spawn naturally throughout the world! From simple Skeleton Barbarians to a GIANT Boss!
Miniboss Bars
A simple datapack that adds bossbars for minibosses.
Just Boss Swords
Just a mod that lets you borrow the powers of the different boss
Warden Bossbar
The Warden didn't have a bossbar until now, so I just created one.
Ruins and Towers
Bring back ruins from a forgotten past. Explore a world full of structures. And defeat bosses never before seen!
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.
MCS Ender Dragon
Improves Ender Dragon boss fight, Enderman AI, makes Phantoms more balanced and more new features. All features can be enabled/disabled with gamerules.
Tensura NEB Natural Spawning
Allows the natural spawning of the Tensura NEB bosses
Overgrown's Origins: Wither Unleashed
Dare to face the ultimate challenge in Minecraft? Upgrade your game with Origins: Wither Unleashed, a pack designed to transform the Wither boss battle into a ferocious and thrilling experience reminiscent of the Bedrock Edition's intensity.
Moar Bosses
Moar Bosses adds 7 types of randomly spawning bosses into your Minecraft world. Each boss has 3-5 unique and crazy magical attacks, and drop cores that can be used to craft magic wands. The bosses have custom textures using Optifine or Reselect or CET.
Herobrine Boss Fight
Adds Herobrine Boss Fight to Survival Minecraft. Only for really skilled players.
Wither Ascension
Makes the Wither boss harder with phases and abilities
Fortress of War | Nether Fortress Update
Updates and expands the Nether Fortress into an intense, objective-based combat challenge with custom loot, enemies, and a boss.
The Harvester
Fight against a powerful, Halloween-themed miniboss and get a powerful new weapon!
Bossbar Expansion
This data pack/Mod add bossbar to minibosses in the game like Warden, Elder Guardian and Evoker.
Gigantic Squid
This datapack adds a new 3D animated ocean boss, the gigantic squid! No resource pack required!
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!
Mini-boss Boss Bars [Configuration Datapack]
A configuration datapack for the Mini-boss Boss Bars mod that allows you to configure whichever boss you choose to not show their boss bar.
Daily Boss X Mowzie's Mob
Compat Daily Boss with Mowzie Mob
Ender's Journey Ender Dragon Boss Battle Music Datapack
Ender Dragon Battle music Datapack used in the Ender's Journey Modpack
Nice Huds
Bossbar Huds for players holding Clocks, Compasses and Recovery Compasses. Also adds a calendar/time based event system including seasons.
Tales of Silta
A survival, multiplayer friendly datapack all about magic spells, wands, wizardry, fantasy races, lore, fighting evil bosses and exploration of ancient structures.
Matyah's Configs - Cobblemon Raid Dens Datapack
A datapack created for Cobblemon Raid Dens mod which adds new bosses and loot tables.
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.
Random Bosses
The WASD Random Bosses Datapack turns naturally spawned mobs in the world into bosses. It was inspired by an old mod that is similar in function. Bosses spawn with random power levels, random sizes, and loot based on difficulty.
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.
Daily Boss X Legend Monsters
this datapack makes daily boss and legendary monsters compatible
Waypoints and Bossbars
Adds raiders, trial mobs, skeleton horsemen and bosses to the locator bar and gives trial spawners and skeleton traps bossbars.

Warden bossfight
Turns a player into a boss with warden and sculk-based abilities