Mods for Minecraft Java
Browse 64 free mods for Minecraft Java — popular picks include Dungeon Now Loading, The Cosmic Spokespersons, DivineRPG.
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Dungeon Now Loading
Explore the vast, challenging dungeons that are loaded into your world! This mod introduces new dungeons, along with tricky, but fair bosses to fight at the end of the dungeon.
The Cosmic Spokespersons
A mod focusing on special effects, dimensions, combat and bosses, with some plots.
DivineRPG
8 New Dimensions ♦ 115+ New Mobs/Bosses ♦ Hundreds of New Blocks and Items ♦ Unique Weapons and Armor
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.
Sky Lands
Adds new sky islands biomes, blocks, bosses, weaponery and much more
Dungeons Content 2
Dungeons Content II is a mod that adds content from a new game that has not yet been released and is a direct continuation of MCD. At the moment, only the new hostile mob Warden Boss is available
Announcer Plus
Custom Join/Quit messages and auto-broadcasts! Text animations, Boss Bars, Titles. and much more!

Adventurer's Beyond
Explore lost structures. fight dangerous bosses, and journey to the beyond in this epic mod.
True Boss Music
Adds much needed boss music to Minecraft's Bosses!
Refined Bossbars
A refined look of minecraft bossbars
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.
Da Cheese Mod
this is a mod that adds a bunch of cheese things like cheese armor, cheese tools, weapons, a structure, two boss, customizable features with the use of game rules, and more!
The Dulling - A Final Challenge
Adds an eldritch threat to your world, with Bosses, Dimensions, Magic, & more!
Mystborn Horizons
A progression mod to add more ores, mobs, bosses and structures.
TitleAnnouncer
A lightweight Paper and Velocity plugin to send Titles, Actionbars, Bossbars and Chat announces with MiniMessage format
Styled Boss Bar API
Design your Styled Boss Bar!
xBossBar
Create, edit and show custom BossBars with a few commands, All on a single plugin.
Wands & Wizardry
Bringing Noita's spell system to Minecraft with fully modular wands, over 60 spells, a new boss fight and more!
ReniDrags Molten Mayhem!
Explore the new biome that brings dungeons, dimensions, a custom boss, cool new custom items and of new tools!! Get on this mod baby!! Its super duper cool (source trust me bro)

Dimension Update
The mod adds new bosses and op wepoins

Calamity
Calamity is an expansive overhaul project that introduces challenging new bosses, unique mechanics, and a rich layer of lore to the core experience.
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
AnimaBossBar
Make your own BossBar with this plugin!
Depths and Ores
Depths and Ores adds many new ores, items, armor, weapons, blocks, mobs, bosses and so much more! This mod was made using Mc Creator
The Mod of the Agonizer
Summon and defeat the nineteen Bosses of Mōtia, combining their Elemental Shards into the Shard of LORE, thus becoming the Twentieth Boss, the Lore-Keeper!
Cobblemon Boss Bars
Pokémon inspired boss bars!
LuckyGiant Mod
The LuckyGiant Mod adds new bosses, mobs, a dimension like The End, biomes, structures, and materials. Players must defeat weaker versions of him to collect materials for a ritual to summon the final LuckyGiant.
Dyable BossBars
dye bossbars different colors
Bossclient
PVP Client for the best game experience
motball craft
3 dimensions and a goofy boss at the end
Ultimate DayCounter
A fully customizable day-counter datapack with an interactive dialog GUI, animated bossbar/actionbar, live progress, and new-day celebrations.
Boss Update
This mod adds three new distinct bosses with custom drops and powers. (also available in multiplayer worlds.)
More Ore -
Mod that adds more content and more ore to minecraft. New content includes bosses, dimensions, weapons.
NexusMobs
NexusMobs is a comprehensive RPG plugin that transforms your Minecraft server by introducing over 20 unique bosses
FriedZane
A mod that adds new items and bosses that relates to the minecraft youtuber "FieryZane" and adds new awesome features to make minecraft more destructive and fun!
Custom Announcer
CustomAnnouncer is a lightweight and highly customizable announcement plugin for Paper Minecraft servers that supports multiple display types including boss bars, chat messages, titles, and action bars