Neoforge Mods for Minecraft 1.21
Browse 77 free Neoforge mods for Minecraft 1.21 — popular picks include Diary of an 8-Bit Warrior, PixelColonies: Arcane Journeys, Temples & Templates.
Updated daily
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…
PixelColonies: Arcane Journeys
Dimension and Exploration Modpack with very hard Bosses and other Creatures, as well as many diffrent dimensions and Quests
Temples & Templates
Adding more boss encounters and tools to spice up your minecraft playthroughs!
Summoner Mod
A mod that adds 4 bosses and 4 structures. Almost no dependencies!
Electric Boogaloo
Adds a new zombie dancing boss, Electric Boogaloo with his iconic Backup Dancers from the Plants Versus Zombies Games
SC Final Adventure - Machines
Hunt bosses, farm their essence through Easy Mob Farm and Create New Age, and craft your way to the End in a guided 1.21.1 factory-and-adventure pack.
The Angry Ghast
Three new Ghast themed bosses, one for each dimension
KolegxixPL Magic RPG
dive into this mysterious world with new creatures spells bosses and quests
TCC - Skyzone
An expert-mode 1.21.1 NeoForge skyblock pack with tech, automation, and magic (Mekanism, Create, Oritech, Ars Nouveau), exploration dimensions, and scaled-up Apotheosis difficulty for tougher mobs and bosses.
Grandia Dungeons
A dark fantasy roguelike dungeon adventure with classes, bosses, cursed loot, magic, traders and procedural floors.
Minecraft-The CATASTROPHE mod
Adds new bosses to the base game, and overhauls the progression

Hyrinity (Legacy)
An overall content mod adding progression, bosses, dimensions and more!
Boss Update
This mod adds three new distinct bosses with custom drops and powers. (also available in multiplayer worlds.)

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.
Crowned Herobrine [LEGACY]
Adds a new boss called Crowned Herobrine that is a formidable opponent. He drops a useful crown ;)
More Ore -
Mod that adds more content and more ore to minecraft. New content includes bosses, dimensions, weapons.
Elysian Horizon
A beautiful modpack with a lots of custom mobs, bosses, tools and mechanicts
In the Journeys
The mods expand Minecraft further with new ores, mobs, biomes, dungeons, bosses, and magic to discover.
Worlds O' Plenty II
A new & updated curated modpack featuring all sorts of experiences!: - Adventure! - Decorations! - Bosses and Mobs a plenty! And of course... *drum rolls* Plenty of Worlds to explore! - Updated to 1.21.1 Neoforge!
EssenceBound
Adds 4 new bosses with special items and a crafting levelling system for 2 of them :)
ADKM
Defeat a powerful, giant boss roaming your world to claim his legendary Scythe with +16 Attack Damage! A high-risk, high-reward challenge. (Requires GeckoLib)
DreadWalker
A mod adding a new boss, new weapons, tools, armor, and a magic staff.
Artifacts and Bosses
This mod adds new gems that can be collected from 4 new bosses
WarFmod
A mod that adds new mobs and bosses to your world, as well as new features and items.
HARD NEW
A technologically advanced game with a focus on realism! Shaders, automation, smart NPCs, hundreds of animals, and hardcore bosses. Explore this vibrant world with your friends using the built-in voice chat.
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
Endless Instability
This mod changes many stages of Minecraft, adding new blocks, tools, and bosses. It's not yet finished and is in early development. It's 70% translated into English and 100% into Russian.
Aggro Fix Mod (1.21.1, 1.20.1) – Enhanced Aggro System, Like an MMORPG
Aggro Fix Mod aims to change the aggro system of Minecraft. Normally, mobs in Minecraft target the first entity that hits them. This mod changes that behavior so that mobs will target the entity that deals the most damage to them. This mod is particularly useful in multiplayer scenarios or when fighting modded bosses, as […]
Brutal Bosses Mod (1.21.1, 1.20.1) – New Adversaries for Players to Battle
Brutal Bosses Mod is a mod that, as its name suggests, introduces new bosses into Minecraft. These bosses are based on existing Minecraft creatures but come with unique stats, abilities, loot, and behaviors. Features: Here are some of the bosses included in the mod: Evoker Boss, Evoker Summoner, Drowned Boss, Ghast Boss, Archmage Boss Cave […]
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
Soap's Weapons 'n Bosses
Mod filled with weapons and bosses from anime and games
The Fallen World
This mod adds things like dimensions, blocks, items, mechanics, bosses, mobs, structures and much more!
Epic Bosses (Bosses)
A mod for epic bosses in minecraft that adds a lot of unique content.
Stronger Fire Boss
Enhance or customize the Fire Boss in Iron's Spells 'n Spellbooks.
Army of Shadows
Master the Art of Necromancy! Capture the souls of any mob or boss—including those from other mods—and command an undead army or harness their dark power for yourself.