Fabric Mods for Minecraft Java
Browse 90 free Fabric mods for Minecraft Java — popular picks include Moonstruck Phantasm, Boss Checklist - Stellarity Compatibility, Boss Checklist - Annihilation Recreated Compatibility.
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Moonstruck Phantasm
Adds the Moonstruck Apparition, a highly developed boss with fleshed-out attack patterns to your game.
Boss Checklist - Stellarity Compatibility
Integrates the Empress of Light boss from Stellarity as an entry in the Boss Checklist mod.
Boss Checklist - Annihilation Recreated Compatibility
Integrates the Annihilation boss from Annihilation Recreated as an entry in the Boss Checklist mod.
Outstanding Ores
This mod adds 9 new materials which scale heavily into the late game. Each Material has its own properties which are applied to both weapons and armor sets. 8 out of the 9 materials have armor. Vanilla+ Friendly. Adds bonus boss drops.
[DCME] Dynamic Contextual Music Engine
Replaces vanilla music with a dynamic soundtrack that reacts to biomes, time of day, weather, battles, bosses, structures, etc. Fully customizable via resource packs and JSON; no programming required
Boss Checklist - Ultris Compatibility
Integrates all bosses from Ultris: Boss Expansion as entries in the Boss Checklist mod.
Harrowing Hells
[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.
glorbins armoury
a mod that contains epic weapons and supreme bosses
Boss Checklist - Camps. Castles. Carriages. Compatibility
Integrates the Piglin Ranger and Ser Marrow bosses from "Camps. Castles. Carriages." as entries in the Boss Checklist mod.
Boss Checklist - Keebsz's Battle Towers Compatibility
Integrates the Tower Guardian bosses from Keebsz's Battle Towers as an entry in the Boss Checklist mod.
DAG Mod
Race & class system, 200-level progression, custom dungeons, boss battles, two custom dimensions, NPC quests, party play, and craftable consumables with real combat effects. Everything in one mod.
Boss Checklist & Field Guide - Harrowing Hells Compatibility
Integrates the Cinderscourge boss from Harrowing Hells as an entry in the Boss Checklist mod.
Boss Checklist - Mob AI Tweaks Compatibility
Integrates the Ominous Phantomare boss as well as the reworked Elder Guardian and Ravager from Mob AI Tweaks as entries in the Boss Checklist mod.
Roguelike MC
Roguelike Upgrade System offers special upgrades, item decay, boss progression, and full customization for casual or hardcore play.
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.
BLACKSOULS II
A hardcore dark-fantasy RPG mod with custom stats, skills, bosses, souls, weapons, accessories, and brutal combat mechanics.
Summoner Mod
A mod that adds 4 bosses and 4 structures. Almost no dependencies!
Fred's Pack 3
A mod that adds all kinds of stuff, from new blocks to new dimensions to new bosses
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

Skillbound-RPG
Skillbound transforms Minecraft into a classic RPG with level-based skills, improved combat progression, magic, prayers, Slayer tasks, bosses, new equipment, and rewarding unlocks as you advance from levels 1–99.
Raijin's Wrath
Unleash the wrath of Raijin — a Fabric adventure of thunder-forged gear, lightning-touched foes, summonable bosses, sacred shrines, and an in-game compendium guiding your ascent.
Boss area woof
BossArea is a Fabric 1.20.1 mod designed for custom adventure modpacks to make fight areas in a RPG style

randomitems-mod
Adds /randomitems, /randommobs, /randomweapon, /randomarmor, /randomtool and /randomquest commands that periodically give random items, spawn random mobs, swap your gear, or assign 5-minute random quests with a boss bar and personal sidebar.
Relics RPG Series Mod (1.21.1, 1.21) – Spell And Combat Boosting Relics
Relics RPG Series Mod adds a collection of magical trinkets that enhance spellcasting and combat. Over forty unique items come with distinct perks and artwork, obtained through crafting, dungeon exploration, and boss encounters. Features: 40+ unique trinkets with different perks and visuals. Boosts spell-focused and melee or ranged combat builds. Some relics craftable using jewelry […]
Slayer's Beasts Mod (1.21.4, 1.20.1) – Diverse Mobs and Bosses
Slayer's Beasts Mod is an RPG mod in development, adding a large amount of fantasy content to the game. You will have access to new biomes to explore, new blocks, various dungeons, monsters, and much more. Features: Ant colonies Praying mantis Wither spider Ambient damselflies Ents (Oak & Birch – more to come) White/Black mushrooms […]
DarkBosses Mod (1.21.1, 1.20.1) – Enhanced Information And Rewards!
DarkBosses Mod provides detailed information on how to summon bosses and their locations, while also rewarding additional experience (XP) upon defeating them. Features: When opening the advancements screen (press the L key in-game and click the dragon head icon), the mod creates a separate tab containing summoning guides and locations for up to 15 bosses, […]
Arsenal RPG Series Mod (1.21.1, 1.21) – Conquer Legendary Weapons
Arsenal RPG Series Mod is a Minecraft mod within the RPG Series, focused on delivering a thrilling combat experience with legendary weapons. Inspired by Minecraft Dungeons and World of Warcraft, this mod does not allow players to craft weapons but instead requires them to conquer them by defeating powerful bosses or exploring end-game dungeon chests. […]
Mob Origins Mod (1.20.2, 1.20.1) – Many Mob Themed Origins
Mob Origins Mod is an origins addon that currently adds over 10 unique origins, each with different powers and abilities. Features: Totem Chance Spiked Riptide Override Remove Mob Hostility Action on Entity Tame Action on Breed Animal Modify Attack Distance Scale Illuminate Dyeable Model Color Walk on Powdered Snow Mimic Enchant Fog Health Boss Bar […]
Wither Spawn Fix Mod (1.21.1, 1.20.1) – Overcoming Spawning Obstacles
Wither Spawn Fix Mod is designed to address the common issue of small blocks like grass, snow layers, flower pots, and carpets obstructing the spawning of the Wither boss. Features: Prevents small blocks from obstructing Wither spawning, ensuring a seamless summoning process. Makes it easier for players to spawn the Wither without needing to clear […]
Archon Mod (1.20.1, 1.19.2) – Sorcery, Necromancy, Bosses & More
Archon Mod is a vanilla-style magic mod for Minecraft that introduces mana, magical weapons, spells, necromancy, summonable bosses, new structures, and various magical mechanics. Features: Mana System: Players accumulate mana, which can be used for casting spells, magic weapons, and tools. Mana regeneration speed and capacity can be improved. Magical Crafting: The mod encourages mining […]
Origins: Wither Unleashed Mod (1.20.6, 1.20.1) – Wither's Transformation
Origins: Wither Unleashed Mod transforms Wither into a powerful final boss. This mod gives the Wither devastating new abilities and enhances its attacks, making the fight more intense and challenging. Players will need to survive the Wither's new powers, including a massive explosion upon death, increased health, and high-speed dashes that inflict Wither damage. Summoning […]
Pillager Queen Mod (1.19.2) – Final Boss to Conclude Pillager Raids
Pillager Queen Mod is a concept for a final boss to conclude pillager raids. Features: Everything is obtainable in survival mode. You can summon the Pillager Queen by participating in a high level pillager raid. As of right now, the Pillager Queen does not drop any new items. We've configured a high number of experience […]
Ultris Boss Expansion Mod (1.20.1, 1.19.4) – New Unique Bosses
Ultris Boss Expansion Mod expands Minecraft with 8 new exciting bosses to take on, each with their own quests and rewards. Explore multiple new boss structures, special items, and new foes for you to take on. Unique boss patterns, boss music, stages, sounds and visuals all come together to create these awesome bosses, from bosses […]
Echoing Depths
Special Warden Boss drops to improve the Deep Dark...
Herobrinia
Adds a herobrine endboss to your minecraft world, with many items.
Vampire Hunter
discover spooky graveyards, castles and fight a new boss: the Vampire