Neoforge Mods for Minecraft 1.21
Browse 109 free Neoforge mods for Minecraft 1.21 — popular picks include Adaptive horde, ATMIL - All The Mods I Love, Prototype 0.3.
Updated daily
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.
ATMIL - All The Mods I Love
A mix of all the great and underrated mods, contain various weapons and bosses. Basically an RPG modpack.

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.
BossBound Relics [drops & weapons]
New weapons as a reward for beating bosses !
BossesChaos
Wield legendary weapons and challenge unique, powerful bosses hidden across the world. Defeat the chaos, survive deadly mechanics, and claim epic rewards!
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
Cooper age
mod adds 2 metals and 1 alloy. You can make weapons, tools and armor with them. There is still 1 boss
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).
CharredNM
This mod adds a new biome, structure, weapon, and boss into the game, all to make your minecraft experience just a little bit better.
Dark Souls Expansion Mod (1.21.1, 1.20.1) – Lordran Exploration and Combat
Dark Souls Expansion Mod is a Minecraft mod that transforms the game to capture the look and feel of From Software games while keeping the Vanilla Minecraft essence. The mod adds a new dimension called Lordran, filled with weapons, armor, enemies, dungeons, and structures, allowing players to explore, fight bosses, and upgrade equipment, spells, and […]
Ender Dragon Loot Mod (1.21.1, 1.20.1) – Harness The Power Of The Ender Dragon
Ender Dragon Loot Mod makes the Ender Dragon a more rewarding boss. Upon slaying the dragon, players can harvest its scales to craft powerful weapons and armor. Features: Loot a unique material from the Ender Dragon. Use the scales to craft formidable weapons and armor. Screenshots: Crafting Recipes: Ender Dragon Loot Mod Download Links For […]
The Wandering Murderer Mod (1.21.5, 1.21.1) – Hidden Horror, Dark Humor, And Deadly Milk
The Wandering Murderer Mod introduces a sinister twist to an innocent Minecraft character: the wandering trader. Kill one, and you'll trigger the wrath of the Milkman Reborn, a disguised boss-level mob who will hunt you for two days before rewarding your survival with a powerful weapon, Milkman’s Sword. Features: Adds a hidden boss encounter triggered […]
GeoSmelt Mod (1.21.4, 1.20.1) – A New Adventure Awaits
GeoSmelt Mod reimagines the Minecraft experience by introducing 12 unique ores with distinct progression paths. This mod adds a variety of tools, weapons, and even a new boss, along with several mobs and a new structure in the End to explore. Features: The mod features 12 ores, including Adamantium, Dark Iron, Starcinium, and more, each […]
Fishing Expansion (Fabric/Forge/NeoForge/Quilt)
Enhance the fishing experience with more loot, new enchantments, new boss, real mob fishing, special fishes, turtle armor and more!
TFM's Best of All Worlds (Lightsabers, Wands, Terraria, Bosses, etc.)
Merging a plethora of franchises into one Minecraft mod.
RPG Style More Bosses : Exoframe
Adds a new boss and new weapons to the game. Add-on for RPG Style More Weapons
Twilight Spellbooks: Iron's Spells 'n Spellbooks Addon
This mod adds 7 new spellbooks; you can get them by defeating all the bosses in the Twilight Forest mod.
KingCraft [FORGE]
Travel to a different planet? Fight new bosses? Discover new game mechanics? Welcome here.
Sea Myths: Legendary Ocean Monsters & Bosses Creatures
Face the Leviathan, Kraken, Bloop, Protector, and Sea Eater! Adds 7 massive ocean bosses and sea monsters with powerful scale armor. Includes rideable Bloops!
TFM's Mining Expansion (Drills, Ores, Bosses, etc.)
A mod that expands mining and exploration in the caves by adding drills, new ores, armor, weapons, and etc.
Soap's Weapons 'n Bosses
Mod filled with weapons and bosses from anime and games
Dungeons And Discipline
Dungeons & Discipline adds a new dungeon with traps, enemies, and a tough boss, plus new blocks and several armor sets that let players adjust difficulty—and dominate each other.
Epic Bosses (Bosses)
A mod for epic bosses in minecraft that adds a lot of unique content.
Sabers And Bosses
Forge Six Legendary Krystal Saber Swords, each infused with unique Elemental Abilities. This mod introduces 4 NEW Bosses along with special drops for the Elder Guardian and Ender Dragon
Dread's RPG
Welcome to Dread's RPG, Fight New Bosses, Complete Dungeons, New Items and More on this RPG Mod
Boss Plus (Discontinued)
Adds new bosses to fight!
Evergrow
A brutal high-end adventure modpack packed with tons of new mobs, bosses, weapons and dimensions – heavily optimized and balanced for powerful PCs.
Royal bosses
Adds royal bosses and other things.
Paladin's Journey
A mod that adds new: bosses, ores, armor sets, weapon types, and even special legendary weapons. Made for the Paladin's SMP.
Imbossible
Minecraft bosses with the Giant Slime and Frost Titan. Featuring custom attacks, summons, and unique weapon drops.