Fabric Mods for Minecraft 1.21
Browse 31 free Fabric mods for Minecraft 1.21 — popular picks include Brutal Bosses - Custom Bosses, Marium's Soulslike Weaponry, Pumpkillager's Quest.
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Brutal Bosses - Custom Bosses
Adds 29+ Bosses to dungeons and structures. Allows custom boss creation through datapacks
Marium's Soulslike Weaponry
New bosses and legendary weapons!
Pumpkillager's Quest
🎃 SpookyJam 2022: Help out the Pumpkillager! With custom encounters, rewards and a boss fight you'll get immersed in the story. Spawn him by breaking a pumpkin in this spooky scary Halloween style mod!
DarkBosses - RPG Bosses Advancements
RPG boss summoning information and grants extra experience for defeating bosses
Tensura: Not Enough Bosses
Official Addon for Tensura: Reincarnated adding new bosses to the game for quests.
ANARCHY Minibosses (RPG Series Plus)
Rogue Exile inspired Faction mod!
Mebahel's Creatures - Draugr Invasion
This mod introduces a full bestiary of Draugrs inspired by Skyrim, a boss with advanced AI, powerful magical items, shared multiplayer chests, new structures, and a raid system that turns the player into the hunted.
Wizard Tower
Adds a Wizard Tower along with a new wizard mob mini boss
Slayer's Beasts
Explore new structures and biomes to face off against beasts and bosses on the surface, or in treacherous dungeons.
Chrono Dawn
Adds Chrono Dawn, a time-themed dimension with custom portals, boss battles, and time-manipulating artifacts. Supports Fabric & NeoForge.
Rival Trespassers
Fight survivalist minibosses in structures - just like you!
Antarchy
A re-imagining of the classic Orespawn mod adding 45+ mobs, 8+ bosses, 3 fleshed out dimensions, and more
Trial Guardians
Procedural Trial Chambers and Bosses!
Realmwalker
Magical invaders roam the land - bosses, weapons, and loot!
The Nether Dungeons
I have added a dungeon that spawns at the depths of the nether which has a summing room where you have a chance to summon 3 different bosses.
Gateway of Doom
Throw a Devil Eye to open a configurable combat gateway. Survive random or fixed waves, bosses and timed challenges for rewards—or suffer debuffs. Includes auto gateways, custom mobs, profiles, admin menus, commands, diagnostics, plus a stable add-on API.
bosses' addition
a great challenge for those who are bored from vanilla, all in vanilla.
The Catamount
The Catamount is a mix between an ambiance and a boss mod
Hostile Mob Better Configuration - HMBC
Hostile Mob Better Configuration gives you full control over hostile mobs in Minecraft. Attribute and behavior, or turn mobs into powerfupl boss variants to create a completely new difficulty and combat experience. Each mob can also have its own name.
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.
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.
Summoner Mod
A mod that adds 4 bosses and 4 structures. Almost no dependencies!
Mine RPG
This is combination of mods to add more content to Minecraft including bosses, biomes, creatures. This is more RPG adventure style while keeping all vanilla. No extra metals or materials are added on this pack.
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.
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.
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 […]
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 […]
Fishing Expansion (Fabric/Forge/NeoForge/Quilt)
Enhance the fishing experience with more loot, new enchantments, new boss, real mob fishing, special fishes, turtle armor and more!
World Bosses
Summon, fight, and loot epic world bosses across every dimension, with custom shrines, ritual items, raid rewards, trophies, and a final primordial boss.
Base Invasion - Siege Core
Defend your base with the Siege Core against waves of monsters, boss battles, and air strikes. Collect rewards, repair the Core, play as a team, and customize wave difficulty, loot, threat, and overall difficulty in the settings.
Imbossible
Minecraft bosses with the Giant Slime and Frost Titan. Featuring custom attacks, summons, and unique weapon drops.