Mods for Minecraft Java
Browse 588 free mods for Minecraft Java — popular picks include Penguin Madness, Weder's Obsidian Items, Abyssal Sands: Fracture of Time.
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Penguin Madness
A mod adding Bossfights weapons and more!
Weder's Obsidian Items
Some Items stronger than Diamond, It could be useful with powerful bosses :)
Abyssal Sands: Fracture of Time
"Abyssal Sands: Fractures of Time" is a mod that adds three unique biomes, time-manipulating items, and a powerful boss. Explore the world, harness time, and conquer the Time Lord.
Colossus Mod
The Colossus Mod add quite a bit of content based on adventure and progression to the final boss of the mod.
Adaptive horde
Adaptive Horde adds progression-based mob waves that scale per player gear score. Configure custom waves, drops, and pacing per dimension (Overworld/Nether/End). Supports modded mobs/weapons with JSON overrides, boss bars, and live reload.
Playing with Fear
Eu fiz um modzinho que coloca algumas armas e bosses de OP (Ordem Paranormal) // I made this little mod that adds PO (Paranormal Order) content.
Chaos Project
This mod adds a lot of new content! New bosses, mobs, dimensions, paintings, weapons, hardmode, and new DIFFICULTY!
Soritun Dimension
Adds a dimension with a boss and his guard
Star of the world
this mod will add new mobs, ores, food, bosses and totally new structures
Osdium Craft
Mod that adds dimension, bosses and armor.This mod adds more adventure and variety of battles.
Galaxium
This mod adds 16 new bosses and each one has its own item

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.
Cowzilla
This mod adds in hostile cows, giant cows, and huge cow boss as well as cow based weapons.
More Ore -
Mod that adds more content and more ore to minecraft. New content includes bosses, dimensions, weapons.
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")
BossBound Relics [drops & weapons]
New weapons as a reward for beating bosses !
Jacko's Bossified Weapons
Ever wanted more uses for the vanilla bosses other than access to elytras and crafting beacons?
BossesChaos
Wield legendary weapons and challenge unique, powerful bosses hidden across the world. Defeat the chaos, survive deadly mechanics, and claim epic rewards!
lingxiaoyu
This mod is about the fairyland of ancient Chinese culture. This mod adds a weapon, a prop, two bosses and their summons, made using MCreator.

IceNFireFactionsWeapons
this project is supposed to be another part of my other project about faction in iceandfire dragons, which will get released soon. it adds ancientite, a rare ore made of ancient dragon remains. it adds weapons, a boss, and armors
Fierros' World
A Minecraft mod which adds new overpowered bosses, dimensions, structures, weapons and other features.
XDL的武器1
添加了几把武器和一些生物及一个BOSS Added several weapons, some creatures, and a boss.
DreadWalker
A mod adding a new boss, new weapons, tools, armor, and a magic staff.
Nation's Roots
Nation's Roots - a mod where you choose one of 4 Races with unique Nations. Your choice grants powers and flaws. Find a Star to change your Nation and defeat a race boss to claim their legendary weapon. Your roots define your power.
Folded Iron
A boss/item/weapon/after game content mod
Echo Relics
Echo-themed exploration, ruins, elite events, weapons, caches, and boss progression for Minecraft 26.1.2 + NeoForge.

Descent into the Realm, Forsaken
A Java neoforge survival mod, intergrating custom weapons, a seasonal system, different boss progression, culinary aspects, new creatures, and much more.
Cooper age
mod adds 2 metals and 1 alloy. You can make weapons, tools and armor with them. There is still 1 boss
Homckach's Random Stuff
Adds bosses, weapons and mechanisms with nice progression, advancements will help you figure it ou
Amethyst Age
Expand Minecraft's amethyst progression with new tools, armor, weapons, food, a custom biome, Crystal Merchant, Crystal Warrior boss, advancements, and unique abilities like 3×3 mining, Tree Chopper, and Crystal Charge! 💜
Telum Solaris - At the Forest's Edge
Telum Solaris aims to add new weapons, armor and boss to minecraft for every stage of minecraft's progression. It is currently my first and only project!
MrChipdip's Super Mod
Adds a lot of new items many new bosses and weapons, currently some stuff is unfinished but is still playable.
D E S C E N T
A datapack focused on adding skill based bosses and complex weaponary.

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.
Chariz's Mayhem
A Minecraft Mod That Aims To Add Fun Things Into Minecraft, Such As New Mobs, Bosses, Weapons, Tools, Armor etc. Created By The Maniac Himself, DarkChariz
Boss Weapons Mod
This is my first mod, so it's probably not very good. It adds some weapons for each mob that is generally considered a boss (Wither, Ender Dragon, Warden, and Elder Guardian).