Mods for Minecraft Java
Browse 1,330 free mods for Minecraft Java — popular picks include Nightmare Monsters, OreSpawn Boss, Contoro's Ores+.
Updated daily
Nightmare Monsters
A mod that adds new monsters, and bosses
OreSpawn Boss
This mod adds bosses from OreSpawn to Minecraft
Contoro's Ores+
This mod adds ores and new tools and armor, but with a twist. The player needs certain leveled tools to get stronger ores. This mod also adds a new dimension and a new boss.
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.
Zombie Survival Mod (ZSM)
Survive for 10 days fighting zombies with unique abilities. As the days progress, stronger zombies spawn, culminating in a final boss. Players can craft items, build defenses, and face various challenges to stay alive.
Titans - World Bosses
Pixelmon World Boss Sidemod
BriskRocks mod
In this mod you can find a bit of everything such as bosses, mobs, weapons, tools, armors, blocks, items and more, divided in four elements
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!
RSMC: The Third Age (RuneScape in Minecraft)
RSMC: The Third Age is a Minecraft MOD that brings RuneScape to your Minecraft Worlds. RSMC can be played in Single Player or Multiplayer. It adds 24 Skills, Trading, GE, Bossing, Mini Games, Dungeons, and so much more
The Worst Shin Sonic Mod
Adds Shin Sonic into the game as a boss mob that will grow bigger as he eats!
Daily Boss x Brutal Bosses
Compatibility between Daily Boss and Brutal Bosses.
LAir's Bosses
This mod adds two bosses to the game, The Spirit of the Forest and Zeus, along with a new structure: Olympus.
Gun and Boss
Weapons and a new miniboss in minecraft
The Dulling - A Final Challenge
Adds an eldritch threat to your world, with Bosses, Dimensions, Magic, & more!
God Of Cosmos 3.2.0.5
This Mod Turns Mobs Into Unkillable Bosses

ScalingMobs
Adjusts the stats of bosses and mobs, multiplied by the number of players on the server.
Mystborn Horizons
A progression mod to add more ores, mobs, bosses and structures.
Threateningly Mobs Continued
A community continuation of Threateningly Mobs with dangerous creatures, bosses, structures, and equipment for Fabric and NeoForge.
Vanilla Evolution (EVEP)
Advance through this mod by getting better armor and weapons through mining, exploring, killing bosses, and grinding

BossCraft Respawn : Overlord
Unofficial Port of BossCraft and BossCraft2 Content
Reverscore
Reverscore is a mod for the Revers Modpacks which adds various items and bosses.
Spooky Scary Skeletons
A fun RPG mod with new ores, mobs, tools, armor, bosses, and more!
Wannabe Bosses
A mod that aims to add interesting boss-fights inspired by different characters.
Grace999
GracePlugin provides configurable, per-world grace periods with PvP and mob damage protection, boss bar countdowns, sound alerts, and customizable safe zone regions with flag-based protections.
Foolish - Boss Music Addon
Makes all boss-dropped music disc tracks play during their respective boss fights in the Foolish mod.
Mob Net
This mod allows you to control mobs using nets, which can capture, store and free almost any creature, from passive animals to dangerous bosses!
Chaos World
Add a list of weapons with great abilities. A struction and a powerful boss.

Deltarune Project
This mod adds various elements of Deltarune chapters 1 and 2 to Minecraft. There are many new materials and bosses added to the game.
Dead World [Remake]
Four new dimensions, a lot of new creatures, new bosses and monsters to defeat in this mod to explore. From the oceans to the caves, you will find dangerous monsters and beatiful creatures.

DiexvCreeper
A special Creeper.It almost never dies naturally.It boasts a unique boss health bar, and the projectiles it fires can automatically track enemies, releasing colored lightning.
Lijm's Expanse
Lijm’s Expanse expands Minecraft with firearm manufacturing, vehicle assembly, magic, spell tomes, new bosses, and even cheesemaking. A vast new expanse of possibilities awaits!

Vital
A mod which adds clean, minimal, but readable SHADER COMPATIBLE health bars to each mob in the game (optionally replacing boss bars with colour coded bars per active boss too).
Stellar Explorer
A sci-fi mod for 1.20.1--Use Void Exudate to power machines, build a teleporter, and explore alien worlds with resources, structures, and bosses. Still early in development.
Bosses Of Bedrock
Adds Several New Bosses And Structures to spice up your world
Diary of an 8-Bit Warrior
Experience Aetheria like a Terrarian! Complete quests, kill bosses, and level up your skills! Maybe you'll even meet Runt and his friends…
Piglin Wither
Adds a new piglin wither boss