Fabric Mods for Minecraft Java
Browse 183 free Fabric mods for Minecraft Java — popular picks include DarkenDepths, [WIP] DragonFist Legacy, Bossmode.
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DarkenDepths
A Mod extending the Deep Dark and creating a new biome adds a new boss and other cool items
[WIP] DragonFist Legacy
(INCOMPLETE and WIP) Adds martial artists to Epic Fight, along with new content, structures, and mini-bosses throughout the world.
Bossmode
Bossmode is the difficulty above hardcore that turns every mob into a boss fight, including passive mobs. Can you survive?
BLACKSOULS II
A hardcore dark-fantasy RPG mod with custom stats, skills, bosses, souls, weapons, accessories, and brutal combat mechanics.
Blobby Mod
Add’s a new biome in the void dimension. It also gives you a new Boss in swamps.
DungeonRPG
Diablo-style dungeon crawler for Minecraft. Delve 7 themed dungeons, battle scaling bosses, and hunt randomized loot across 5 rarity tiers, 65 unique items, full leveling from 1–100, and a Salvage Station to scrap, repair, and recycle gear.

PlasmaMod (UNMAINTAINED)
A fabric mod that adds a full set of new tools and mobs including a boss that is all plasma themed.
Nightlancer
Adds an ominous boss on horseback
Frozen Nether Roof
A frozen roof to the Nether with new biomes, structures, and a miniboss
Planetary Diaries
Epic Space Mod to extend your two week survival fase! With a brand new dimension with all new PLANETS you can discover over 20+ structures, new resources, blocks, creatures and even custom BOSSES!
Summoner Mod
A mod that adds 4 bosses and 4 structures. Almost no dependencies!
koper_mod
A chaotic Minecraft mod with unique bosses, broken armor sets, and a corrupted dimension a little unbalanced but fun as hell.
Kevosaurus Rex
Adds new boss - Kevosaurus Rex and Kevocitaptor, it's minion.
Homelantor
A Homelander boss addon for TerminatorStar featuring advanced AI, hunting behavior, and powerful combat abilities.
ZApocalypse
ZApocalypse is a Fabric mod for 1.21.1 that turns every night into a zombie wave, with elite variants, blood nights, and a Zombie Lord boss. As the apocalypse escalates, zombies evolve unique abilities while other hostile mobs retreat deep below Y=25.
Darkest Garden
Adds a new boss to the Pale Garden!!!
The Echo
A terrifying Fabric horror mod featuring system glitches, fake player activities, and sanity day progression. Escape a stalking entity in nightmare dimensions and stabilize the simulation by defeating the final boss, The Echo.
Tales of the Third Age - Balrog
Adds a Balrog Boss to your Middle Earth modding experience!
creeper-apocalypse
Mob Replacement System ALL mobs spawn as Creepers! with exceptions Exceptions that remain normal Blazes you still need blaze rods! Villagers or trading Ender Dragon final boss remains Iron Golem
Muck Bosses
A Mod that add Muck Bosses To Minecraft!
Breeze Island
Adds a sky island with loot and a boss fight.
World's Whisper
Conquer shape-shifting bosses and craft elemental gear in a realm ruled by four mystical seasons.
Warden Boss Bar
Ever thought the Warden should deserve a boss bar, due to the large amount of HP it has (500 HP)? Then this mod is for you.

LootShare
Tired of divvying up loot after bossfights?
Robot Legion
Build a steampunk robot army. Workers automate jobs while combatants fight beside you through three boss dungeons. Trade with engineer villagers for rare parts.
The All Powerful Ender Chicken
Minecraft's hardest boss!
Poke card
This Projekt adds an poke Card with that you can capture and release Mobs anywhere. But not endbosses.
online horror mod
this mod adds both momo and blue whale as boss mobs to Minecraft
Cube' Em
This mod takes the Rubik's cube to a whole new level and adds it all to Minecraft! We got new structures, new items, a new block, and an OP new sword that you can only get from killing my new boss!
The Umbral Eye / 虚空の蝕王オクルス
A floating, void-themed endgame boss summoned by ritual. The Umbral Eye fights across three telegraphed phases — tuned so that even full netherite, a beacon, and golden apples make for only a knife's-edge win. 祭壇の儀式で召喚する浮遊ボス「虚空の蝕王オクルス」を追加。予兆付きの3段階で戦う
Project: TitanSlayer
Slaughter Mobs and Bosses in a Doom Style
Growth Mobs
Growth Mobs adds powerful growth stages to Minecraft mobs, transforming ordinary enemies into massive bosses with unique abilities, custom boss bars, devastating attacks, and enormous health pools. Progress through new gear tiers.
blazeQOL
Minecraft mod for Hypixel Skyblock which features QOL for Blaze Slayer giving you a HUD with general information about the current boss.
Nether chambers
Adds custom trial chambers, mace, boss and items to the nether
Yori3o's Trash 'n Brainrot
Stinking trash cans, 5G towers, a new boss - everything you needed
Passive Boss Bars
This is a lightweight, server-side mod for modpack creators that allows you to make boss bars only appear when a boss is aggro. The mod "Mob Boss Bars" is required for this to work.