Mods for Minecraft Java
Browse 2,553 free mods for Minecraft Java — popular picks include BossBar Announcements, D E S C E N T, Bossbar Config.
Step by step: How to install Minecraft Java mods & modpacks
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BossBar Announcements
This is a Minecraft plugin that displays server-wide announcements as a boss bar with time-based progress indication.
D E S C E N T
A datapack focused on adding skill based bosses and complex weaponary.
Bossbar Config
A basic bossbar config that allows you to resize and change the position of the bossbar in Minecraft.
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.
BossTimer-Mod
BossTimer-Mod is a Fabric server-side Minecraft mod that lets admins create and run configurable countdown timers displayed via boss bars, with optional messages, triggers, and commands before and after the timer ends.
More Ore -
Mod that adds more content and more ore to minecraft. New content includes bosses, dimensions, weapons.

Prototype 0.3
currently just adds some custom armor and weapons not much. later there will be bosses, extra mobs, A third set of armor, even more weapons, maybe vehicles, and a lot more.
PalutenBoss
Ein Fan Plugin für den YouTuber -> Paluten
Cowzilla
This mod adds in hostile cows, giant cows, and huge cow boss as well as cow based weapons.
Crowned Herobrine [LEGACY]
Adds a new boss called Crowned Herobrine that is a formidable opponent. He drops a useful crown ;)
AimTimer
AimTimer is a lightweight and easy-to-use plugin for Minecraft that allows you to create countdown timers using the boss bar, action bar, experience bar, or a combination of them. You can easily add or take time, display personalized messages, and cho
Muck Bosses
A Mod that add Muck Bosses To Minecraft!
NexusMobs
NexusMobs is a comprehensive RPG plugin that transforms your Minecraft server by introducing over 20 unique bosses
MegaBlocked : Unofficial Remake
Remake of the Mega Block Boss from Sthullen's Bosscraft Mod.

MagicWorld
added 4 elemental type magic ice fire air lighting all types has 4 skill in world added 2 new structures and 1 boss
WatcherBoss | Epic Multi-Phase Boss Fights [1.16.x - 1.21.x]
Immersive boss fight system with monuments, effects, and rewards
SuperRH bosses
This mod adds some uh cool stuff like a very strong boss and a total red biome

Pantheon Adventure
Thirteen god bosses, each enthroned in their own hand-built temple dimension. Complete the trials, forge the divine keys, open the gates — and bring Olympus down, one throne at a time.
World's Whisper
Conquer shape-shifting bosses and craft elemental gear in a realm ruled by four mystical seasons.
Sauling of Ascension
A wacky mod that turns minecraft into a boss and tech based progression game!
AntiLogout
A lightweight anti-combat-log plugin for 1.21.x. Features a 20-second BossBar countdown and automatic death penalty for players who logout during combat.

TNTNuke
This plugin allows players to spawn a massive TNT explosion at once, with a countdown timer and a visual bossbar showing progress. It also supports cooldowns and permissions to control who can use it.
Skript | MVP Boss Party Rankings (TH/EN)
About attacks on Mythicmobs in Party and non-Party / It feels like a party helping each other defeat
BossBarScale
Resize the boss bar with an easy in-game slider.
Nex-tpa
Lightweight teleportation and homes mod — /tpa, /sethome, AFK protection, and bossbar feedback for everything.

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.
Holger Soup and Sorcery
This Mod adds many soup themed items to the game. Also a flying soup boiler that attacks you and a Soup Biome and Dimension. Also this mod adds the substance Holrosium and Holgarium, Crows and a Bossfight with Holger.
bear5
A joke horror mod that adds stupid monsters, and a boss.
fwdmod
This mod by sjvwbwh,It added a little bit of content.This mod adds the boss—Kobe, among others. But It only supports Chinese translation.
Forsaken Crowns
A game of Crowns and Sins... (Adds 7 Bosses, each one based off of one of the 7 deadly sins. Each boss drops their crown, and might drop a weapon...) (For Lore, Download "Forsaken Lore")
Dungeon Descent
Dungeon Descent adds a massive five-floor underground stronghold packed with themed rooms, deadly traps, hidden loot, safe-room checkpoints, unique enemies, and five powerful bosses. Claim boss souls, awaken artifacts, and forge mighty gear.
ModernBosses
🟣 ModernBosses: The Corrupted Awakening ModernBosses is a lightweight, powerful, and highly customizable Minecraft plugin (1.20.x) that allows server administrators to transform any vanilla hostile mob into a formidable Corrupted Boss.
AnnounceX
📢 Professional announcements with custom durations, colors, sounds & particles! Title + BossBar modes. Perfect for events! ⚡
BossesChaos
Wield legendary weapons and challenge unique, powerful bosses hidden across the world. Defeat the chaos, survive deadly mechanics, and claim epic rewards!
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!
Cognitio
A chaotic world with strong monsters and bosses and cool artifacts with powerful abilities.