Minecraft Java 1.21 Mods
Browse 109 free mods for Minecraft Java 1.21 — popular picks include Qliphoth Awakening, Ender Dragon Fight Remastered, Armageddon.
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Qliphoth Awakening
Adds various bosses with unique attacks and mechanics.
Ender Dragon Fight Remastered
A difficulty increase of Minecraft's final boss, with a focus on a somewhat Vanilla feel.
Armageddon
A highly configurable overhaul of Minecraft's way of progressing through the game : bosses, RPG-like, new mechanics, multiplayer compatibility, weapons, ores... !
Withering Heights: Revamped Wither
Turning the Wither into something worth calling a boss.
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
MythicMobs
Create custom mobs and bosses with advanced skills, attributes, equipment, and more!
Multiplayer Bosses
A server-side mod that makes boss health and loot drops scales to player count.
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.
EliteMobs
Minidungeons, Arenas, Bosses, Custom Loot, Quests, MMORPG progression & more!
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!
Boss Ultimatum
Heal bosses when players die, or remove them!
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.
True Boss Music
Adds much needed boss music to Minecraft's Bosses!
Void's Titans
This Datapack will add 28 new bosses and 4 new superbosses! The Titans are nothing short of walking calamities.
Bossbar Expansion
This data pack/Mod add bossbar to minibosses in the game like Warden, Elder Guardian and Evoker.
Ea Nasir's Items and Bosses Pack
Introduces new bosses, items, and more!
Blue Depths
This is a datapack that improves the Minecraft ocean and river ecosystem by adding new mobs, blocks, and a brand new ocean boss. The new sea creatures include Orcas, Sharks, Sturgeons, Jellyfish, Catfish, and Tuna
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.
KinglyBosses
KinglyBosses is a Minecraft plugin for managing custom bosses. It allows summoning powerful bosses, generating custom items, and enabling player spectating. It also offers features like boss lists, spawn zone management, and easy configuration reloading.
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.
Fortitude
Gain stats upon defeating unique mobs and conquering bosses. Fully configrable/customizable.
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.
ScalingMobs
Adjusts the stats of bosses and mobs, multiplied by the number of players on the server.
Grace999
GracePlugin provides configurable, per-world grace periods with PvP and mob damage protection, boss bar countdowns, sound alerts, and customizable safe zone regions with flag-based protections.
Vital
A mod which adds clean, minimal, but readable SHADER COMPATIBLE health bars to each mob in the game (optionally replacing boss bars with colour coded bars per active boss too).
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…
Harry's Hostile Expansion
Adds many different hostile mobs, mechanics, structures & bosses.
Nice Blockhead Mobs
Adds cute, little Mobs (and 1 new Boss) made out of Miniblocks. No Ressource Pack required.
Bosscraft 2: Remake
Bosscraft 2: Remake is an unofficial project inspired by Sthullen's famous mod for older and outdated versions of Minecraft. This project takes the iconic mechanics of the classic mod and integrates them into modern versions of the game.
RogueCraft Plus
An addon to the RogueCraft datapack! Adds new abilities, structures and a boss!
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
Ivar's Bosses
Ivar's Bosses is a mod that introduces formidable bosses to the game, featuring unique attack patterns and special summoning rituals. These ancient creatures will unleash their wrath upon anyone who dares disturb their eternal slumber.