Mods for Minecraft Java
Browse 2,548 free mods for Minecraft Java — popular picks include Mystic Craft Mod, Colossal Mobs, Pillager Boss.
Step by step: How to install Minecraft Java mods & modpacks
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Mystic Craft Mod
Its a mod to add a tone of new elements to the game, along with 4 new bosses and a whole new dimesnion(not implemented yet, its in beta right now, i did alpha testing myself)
Colossal Mobs
Massive, challenging, but beatable bosses.
Pillager Boss
This is a Mod that adds new Pillager Boss, it will be challenge to kill him, he is fast and strong.
Compound V: Survival Crafting & Chest_Loot Addon
Compound V: Survival Crafting & Exploration Addon adds Overworld crafting recipes and balanced structure loot tables for Temp V, Permanent Compound V, and Anti-V serums, removing the need for endgame boss fights.
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 Frost
Start New Adventure with mod The Frost added 2 bosses new dimension dungeons lots of tools wand of frost biomes and more
Daydream: Glittering
This is a relatively simple yet comprehensive adventure-oriented Minecraft mod, featuring some new weapons, equipment, and bosses. Most of its content consists of the author's own little clever touches (questionable).
Daily Boss Per Player
Makes Daily Boss cooldowns per-player instead of server-wide.
Ivar's Bosses
Ivar's Bosses is a mod that introduces formidable bosses to the game, featuring unique attack patterns and special summoning rituals. These ancient creatures will unleash their wrath upon anyone who dares disturb their eternal slumber.
DAG Mod
Race & class system, 200-level progression, custom dungeons, boss battles, two custom dimensions, NPC quests, party play, and craftable consumables with real combat effects. Everything in one mod.
GTBC's Cataclysmic Boss UI
Adds a pre-fight boss information screen with lore, mechanics, attack details and tips for L_Ender's Cataclysm bosses!
the hiker
the hiker, a scary mod that adds a new boss named the hiker, it also add a new biome, the hikers forest. and different variants of the hiker!
honkai_craft
Inspired by Honkai Impact 3rd's settings, incorporating mod elements such as weapons, bosses, and terrain corruption

ScalingMobs
Adjusts the stats of bosses and mobs, multiplied by the number of players on the server.
Boss Checklist - Voidscape Compatibility
Integrates the augmented Null Servant bosses as well as the Corrupted Pawn from Voidscape as entries in the Boss Checklist mod
Cruel Remake
New weapons, dimentions, bosses
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.
Harsh Encounters
Adds custom strong bosses to the game.

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).
Geneses Bosses
Add new bosses and sword and two biomes in minecraft
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.
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.

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.
LAir's Bosses
This mod adds two bosses to the game, The Spirit of the Forest and Zeus, along with a new structure: Olympus.
SMPGracePeriod
Disable PvP during server grace period with customizable duration, BossBar countdown, commands, and inter-plugin API.
legendary kings
Plus 3boss and 2 monster and 5item
Koth Wars - King of The Hil
An advanced KOTH plugin with clan support, customizable rewards, and dynamic bossbar/actionbar displ
Nuclear Hurricane Gamer Boss Mod
a mod that adds me as a boss into your minecraft
Nightmare Monsters
A mod that adds new monsters, and bosses
Traditional Korean Food / 한국 전통 음식
adds traditional Korean food such as bossam, bibimbap, and gukbap.
OreSpawn Boss
This mod adds bosses from OreSpawn to Minecraft
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
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.
Mystborn Horizons
A progression mod to add more ores, mobs, bosses and structures.
The Dulling
A Cosmic Horror Story with Bosses, Dimensions, Magic, and more!