Minecraft Java 1.21 Mods
Browse 1,187 free mods for Minecraft Java 1.21 — popular picks include Undefeatables, Apothic Cataclysm, TenSura boss structure.
Updated daily
Undefeatables
Adds mini-bosses to your minecraft experience.
Apothic Cataclysm
Allow Apotheosis bosses to user weapons from Cataclysm after player defeated respective Cataclysm bosses
TenSura boss structure
Add a structure for the Tensura boss.
Toybox
Adds a toy/soft-play/party themed dimension, with many places to explore and a boss to fight
Boss Bars Reforged
Freshly redesigned and more ambitious boss bar sprites!
AL's Boss Rush x Fresh Animations
A pack that makes AL's Boss Rush compatible with Fresh Animations by Fresh_LX!
Medieval MC [NEOFORGE] MMC5
Version 1.21.1 | Fantasy Adventure RPG & Exploration | Quests, Bosses, Custom Content!
Unknown5473lib
A universal code library prerequisite for mods created by Unknown5473,Provides a Boss mob template library and screen effects..
Rpg: Better Elder Guardian
Makes the ElderGuardian a proper boss with custom attacks, increased health and special drops
KEO RPG optimized
Keo RPG is a fully Spanish, highly optimized modpack with over 200 mods that lets you rediscover Minecraft with freedom, RPG classes, magic, and epic bosses.
Better Boss Bars
makes boss bars better and compatible to minecraft textures
Infernal Mobs
Mobs can become Infernal boss mobs and drop cool loot!
Aerial Hell
Sky Dimension & Dungeons, Bosses - from 1.16.5 to 26.1.x
TrollBoss
The one and only Troll plugin you will ever need! Downloaded over 875k times on bukkit!
Nice Mobs Remastered
Randomised mob equipment, 10 new mobs, 3 new bosses, a new late game dimension and more
ApocalypseX
This mod adds a lot of new things! New gears. Dimensions. Bosses
True Ending: Ender Dragon Music
An optional addition to True Ending adding new boss music to the Ender Dragon fight
BETTER FANTASY - Overture
Fantasy Challenging Exploration Modpack - New Dimensions - Bosses and much more!
Confluence: Journey's Start (Terraria ModPack)
Explore the world of Terraria in 3D | Unique Bosses, NPC System, RPG Progression, and FTB Questing.
LUMINOUS: HALLOWEEN
Bring a spooky new boss to your Minecraft World!
Cookiemon - Pokemon Cobblemon RPG & Cookies
Pokemon Cobblemon RPG with 1000+ Quests, Magic, Bosses, Building and more!
Boss Music Mod/Datapack
This mod adds music that will play during epic frays against both the Wither and the Ender Dragon.
Daily Boss
Adding daily boss event into Minecraft
Arda's Sculks (Ancient City Portal / Deep Dark Dimension)
Arda's Sculks mod is a mod that improves the ancient city in the game and offers the ability to open the ancient portal in the ancient city. This mod adds many deep dark biomes to the game and many boss creatures found in these biomes.
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!
CRD Converters
An addon for Cobblemon Raid Dens that allow Myths and Legends items + others to convert raid dens into specific bosses.
GeoSmelt (Neoforge 1.21.1+)
An expansive ”vanilla” plus mod adding ores above netherite, a new boss, really cool blocks, and some sick swords!
Enhanced Pokemon Boss Bars
Stylized pixel-art boss bars inspired by Pokémon, tailored for Cobblemon and Pixelmon trainers.
MythicMobs
Create custom mobs and bosses with advanced skills, attributes, equipment, and more!
Souls-like universe: Epic Fight updated
Updated Version of an Addon for Epic Fight that adds Souls like mobs and Bosses to the game
Multiplayer Bosses
A server-side mod that makes boss health and loot drops scales to player count.
Super Bosses
Any Monster can randomly spawn as a SUPER BOSS!!!
Winter update
This mod adds a lot of content to winter biomes. Starting from ordinary reindeer, ending with various bosses.
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.
EvoPlus
Auxiliary mod for PrisonEvo mode of DiamondWorld project, which includes functionality of boss timers, quick menu, hotkeys for rune sets and many more various features.