Mods for Minecraft Java
Browse 59 free mods for Minecraft Java — popular picks include Ender Dragon Fight Remastered, Arthropod Phobia Expansions + Horror Bosses / Arachnophobia, Armageddon.
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Ender Dragon Fight Remastered
A difficulty increase of Minecraft's final boss, with a focus on a somewhat Vanilla feel.
Arthropod Phobia Expansions + Horror Bosses / Arachnophobia
ArPhEx horror mod - realistic, intricate, phobia-inducing entities and supernatural bosses
Armageddon
A highly configurable overhaul of Minecraft's way of progressing through the game : bosses, RPG-like, new mechanics, multiplayer compatibility, weapons, ores... !
DivineRPG
8 New Dimensions ♦ 115+ New Mobs/Bosses ♦ Hundreds of New Blocks and Items ♦ Unique Weapons and Armor
MythicMobs
Create custom mobs and bosses with advanced skills, attributes, equipment, and more!
ROARING
Brace yourself for one of the Roaring Knight, one of the most Difficult Bosses you've ever fought in a Minecraft Mod. The Knight is fast, smart and uses Attacks that give ''Dark Damage'', which goes trough any type of Health Protection, so be warned.
The Day Of The Beast
Introduces The Devil, a new boss fight in the game.
The Twilight Forest: Re26
Unofficial port of Twilight Forest from Minecraft 1.21.1 to Minecraft 26.1.x and 26.2.x, adapting the mod's dimension, biomes, structures, bosses, items, and mechanics to the latest Minecraft version for modern gameplay.
CrazyVillagers
CrazyVillagers adds hilarious and chaotic new villagers to Minecraft! From a pooping villager to a newborn baby, a fat villager, and the powerful Mecha Boss — expect weird behaviors, dark humor, and total village madness!

BossCraft Respawn : Unofficial Port
Unofficial Port of BossCraft 1.3.2
Epic Bosses
A mod for epic bosses in minecraft that adds a lot of unique content.
Relics of Ruin
A custom weapon system featuring boss-themed swords with unique abilities and mechanics.
Biomes Of The Ancients
A Realm RPG mod that aims to overhaul Minecraft entirely, adding new bosses, biomes, mobs, dimensions, tools, weapons, etc. With a lot of lore to invest into.
RSMC: The Third Age (RuneScape in Minecraft)
RSMC: The Third Age is a Minecraft MOD that brings RuneScape to your Minecraft Worlds. RSMC can be played in Single Player or Multiplayer. It adds 24 Skills, Trading, GE, Bossing, Mini Games, Dungeons, and so much more
The Dulling - A Final Challenge
Adds an eldritch threat to your world, with Bosses, Dimensions, Magic, & more!

BossCraft Respawn : Overlord
Unofficial Port of BossCraft and BossCraft2 Content
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.
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…
Wands & Wizardry
Bringing Noita's spell system to Minecraft with fully modular wands, over 60 spells, a new boss fight and more!

Calamity
Calamity is an expansive overhaul project that introduces challenging new bosses, unique mechanics, and a rich layer of lore to the core experience.
GahoodRPG
Adds RPG elements to minecraft which includes classes, armor, weapons, bosses, and more.
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
The Dulling
A Cosmic Horror Story with Bosses, Dimensions, Magic, and more!
BLACKSOULS II
A hardcore dark-fantasy RPG mod with custom stats, skills, bosses, souls, weapons, accessories, and brutal combat mechanics.
oCode-AnarchiaBosses
Create custom bosses with skills, attributes, equipment and more!
koper_mod
A chaotic Minecraft mod with unique bosses, broken armor sets, and a corrupted dimension a little unbalanced but fun as hell.
Lokotess´s Adventure
The mod adds bosses, items and new mechanics.
VortexRPG
VortexRPG is a fully self-contained MMORPG engine built for modern Paper servers. No dependencies. No stitching together five separate resources. Everything — classes, talents, spells, professions, dungeons, bosses, quests, economie
Minecraft-The CATASTROPHE mod
Adds new bosses to the base game, and overhauls the progression
Damage Indicator YS
Adds a clean red bossbar health display for the entity you’re looking at, with readable damage, healing, and health feedback.

Hyrinity (Legacy)
An overall content mod adding progression, bosses, dimensions and more!
Crowned Herobrine [LEGACY]
Adds a new boss called Crowned Herobrine that is a formidable opponent. He drops a useful crown ;)
NexusMobs
NexusMobs is a comprehensive RPG plugin that transforms your Minecraft server by introducing over 20 unique bosses
Cognitio
A chaotic world with strong monsters and bosses and cool artifacts with powerful abilities.
In the Journeys
The mods expand Minecraft further with new ores, mobs, biomes, dungeons, bosses, and magic to discover.
Summoners
Turns ordinary mobs into mini-bosses that summon reinforcements.