Neoforge Mods for Minecraft Java
Browse 555 free Neoforge mods for Minecraft Java — popular picks include KamenRiderBossYOUandME, Integrated Bosses of Mass Destruction, Ivar's Bosses.
Step by step: How to install Minecraft Java mods & modpacks
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KamenRiderBossYOUandME
Henshin! Step into this heated conflict. In “The Final Boss, You and Me”, it's like the fateful duel of Kamen Riders. The shining belt is the symbol of glory. Amid the intertwining of light and shadow, only the strongest can break through the darkness
Integrated Bosses of Mass Destruction
Integrated Bosses of Mass Destruction is a mod that revamps and integrates all the structures of the mod with many improvements.
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.
Undead Overlord
This mod is based around a difficult boss fight. Adds New items, weapons, mobs, structures, and baubles.
Who Am I: Core
Tear a dragon's heart from its chest, stitch a lich's spine into your own, forge the essence of bosses into your very body. Are you still you?
Boss Rush
Customizable bossrush

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).

ScalingMobs
Adjusts the stats of bosses and mobs, multiplied by the number of players on the server.
Hazelia
Hazelia dimension, creatures, and boss!
Boss Checklist - Ultris Compatibility
Integrates all bosses from Ultris: Boss Expansion as entries in the Boss Checklist mod.
Harrowing Hells
[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.
Sol's Title System
A rich title progression system. Players earn titles by completing in-game achievements — slaying mobs, surviving, or defeating powerful bosses. Each title displays above the player's head and in chat, and can grant unique stat buffs while equipped.
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).
Crowncrawl
It is a mod still in development that aims to improve the vanilla experience of the game by adding new bosses and items.
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.
Daily Boss Per Player
Makes Daily Boss cooldowns per-player instead of server-wide.
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
Harsh Encounters
Adds custom strong bosses to the game.
LAir's Bosses
This mod adds two bosses to the game, The Spirit of the Forest and Zeus, along with a new structure: Olympus.
Legendary Herobrine
Summon Herobrine through a ritual you have to defend, then beat him in a three-phase boss fight you win by learning his moves.
Daily Boss x Brutal Bosses
Compatibility between Daily Boss and Brutal Bosses.

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.
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.
Titans - World Bosses
Pixelmon World Boss Sidemod
Ender Dragon Gear
Get rewarded for defeating the final boss!
The Ice Warrior
datapack that add an ice theme mid-game boss
Chaos World
Add a list of weapons with great abilities. A struction and a powerful boss.
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…
Winter Drop Ruined
Adds the Krakentilus boss, 2 new Nautilus variants, and some spear related content
Foolish - Boss Music Addon
Makes all boss-dropped music disc tracks play during their respective boss fights in the Foolish mod.
Boss Checklist - Desert Behemoths: Sandworms! Compatibility
Integrates the Sandworm from "Desert Behemoths: Sandworms!" as an entry in the Boss Checklist mod.
Ultimate DayCounter
A fully customizable day-counter datapack with an interactive dialog GUI, animated bossbar/actionbar, live progress, and new-day celebrations.
Unknown Echoes
adventure Mod centered around exploration, puzzle-solving, boss battles, and progressive ability growth.
Sky Temple
This datapack adds the sky temple structure: a structure generated in the sky, containing a custom vault, a boss with custom loots and a giant mask (when wore, it turns you into a giant)
glorbins armoury
a mod that contains epic weapons and supreme bosses
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.