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Forge Mods for Minecraft 1.21

Browse 223 free Forge mods for Minecraft 1.21 — popular picks include Monsters Unlimited, Massive MMO, Norious.

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Monsters Unlimited
1.21.1forge

Monsters Unlimited

A challenging Minecraft mod featuring boss monsters! Starting from day ten, a powerful boss monster will appear in your world every five days.

817downloads
Massive MMO
1.21.10forge

Massive MMO

A fantasy MMO-style modpack featuring RPG progression, unique classes, skill leveling, dungeons, bosses, and an open-world adventure experience. Designed for cooperative multiplayer with performance upgrades for smooth gameplay.

779downloads
Norious
1.21.1neoforge

Norious

Bored of not Having enough strong bosses to fight? Ever Wanted To become a God and fight Demons In Minecraft? This is the mod for you.

767downloads
Summoner Mod
1.20.5fabric

Summoner Mod

A mod that adds 4 bosses and 4 structures. Almost no dependencies!

759downloads
The Angry Ghast
1.21.1neoforge

The Angry Ghast

Three new Ghast themed bosses, one for each dimension

751downloads
Blood and Agony
1.21.1neoforge

Blood and Agony

Just a pack to have fun with friends, fight bosses, and level up together

699downloads
NakamaCraftNeko
1.21.1neoforge

NakamaCraftNeko

the modpack about tech and magic you can fight boss with friend

675downloads
Dying to discover
1.20.1forge

Dying to discover

this modpack is great for people who like exploring vast landscapes, with a bit of a challenge, and fighting new bosses that give great rewards.

659downloads
Prismara
1.21.1neoforge

Prismara

Dive into the fascinating world of Prismara, where magic and exploration come together. Explore vast biomes, face powerful bosses, and uncover the secrets of various schools of magic and witchcraft.

619downloads
Velorise EMC
1.20.1forge

Velorise EMC

A progression-focused EMC mod with transmutation, world tiers, alchemical machines, custom equipment, boss arenas, and endgame challenges.

583downloads
Ends Multiverse
1.21.1forge

Ends Multiverse

Bosses, dungeons, dimensions, vehicles and so much more

577downloads
BiiBiiCraft
1.21.1neoforge

BiiBiiCraft

A modpack focused on the Create mod, combining exploration, automation, and a variety of challenging world bosses in a richly diverse world.

505downloads
Frog Central
1.21.1forge

Frog Central

Frog Central is a modpack with plenty to do. Plenty of bosses, regions, dungeons, loot, and slice of life mods come together to make a modpack for every player. FC is rounded to appeal to every type of player from fighters to farmers to flower pickers.

504downloads
RealmsQuest
1.20.1forge

RealmsQuest

RealmQuest - Fabric, designed for players who love epic adventures with original dungeons, bosses, and spells. It features expanded biomes, new tools.

427downloads
Breeze Island
1.21.5fabric

Breeze Island

Adds a sky island with loot and a boss fight.

379downloads
SpellCraft - Magic World
1.21.1forge

SpellCraft - Magic World

A Harry Potter-inspired magic mod adding wands, spells, wizard dueling, potions, a leveling system, magical creatures, a wizarding village with traders, and dungeons — including a boss lair and a dementor-guarded prison.

361downloads
KLAUS
1.21forge

KLAUS

simple mod that adds an evil santa klaus bossfigh

205downloads
chicken boss
1.21.4forge

chicken boss

Adds a powerful God Chicken boss that attacks players by spawning creepers and iron golems.

50downloads
Luminous Halloween Mod (1.21.1, 1.20.1) – Halloween Boss and Moon Magic
1.21.1forge

Luminous Halloween Mod (1.21.1, 1.20.1) – Halloween Boss and Moon Magic

Luminous Halloween Mod is a spooky-themed Minecraft mod that adds a special boss event and themed items for a Halloween-style adventure. The mod focuses on a pumpkin-based boss, new crafting materials, and unique rewards. Features: New Boss Adds a Halloween boss called the Horseless Headsman Summoned by building a special structure Designed as a challenging […]

Mini-Boss Boss Bars Mod (1.21.1, 1.20.1) – Stop Guessing Mini-Boss Health
1.21.1fabric

Mini-Boss Boss Bars Mod (1.21.1, 1.20.1) – Stop Guessing Mini-Boss Health

Mini-Boss Boss Bars Mod adds health bars to tough enemies that usually hide their health. It works with base game mobs like the Warden and Elder Guardian, plus creatures from many other mods. You just need to hit the monster one time to make the bar show up on your screen. If you run more […]

Dark Souls Expansion Mod (1.21.1, 1.20.1) – Lordran Exploration and Combat
1.21.1forge

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 […]

Nasir's Simple Skills Mod (1.21.11, 1.21.1) – Gain Skills by Completing Achievements
1.21.11fabric

Nasir's Simple Skills Mod (1.21.11, 1.21.1) – Gain Skills by Completing Achievements

Nasir's Simple Skills Mod is a fun way to strengthen your Minecraft character by earning and assigning skill points. Complete achievements and defeat bosses to gain skill points, which you can use to improve your health, armor, attack damage, movement speed, and more. Each skill point you earn helps you become more powerful and efficient […]

Super Powers Mod (1.21.11, 1.20.1) – New Bosses, Magics, Abilities, And More
1.21.11fabric

Super Powers Mod (1.21.11, 1.20.1) – New Bosses, Magics, Abilities, And More

Super Powers Mod adds a wealth of new content that brings a fresh and exciting twist to the game. This mod introduces a variety of powerful abilities that can be used for different aspects of gameplay, such as movement, survival, building, fighting, and mining. In addition to these abilities, it includes new bosses, NPCs, custom […]

Random Enchant Fix Mod (1.21.1, 1.21) – No More Junk Enchantments on Loot
1.21.1fabric

Random Enchant Fix Mod (1.21.1, 1.21) – No More Junk Enchantments on Loot

Random Enchant Fix Mod stops unwanted enchantments from being applied to items from loot tables. This gives modpack makers more control over which enchantments appear in the game. The mod also fixes an issue with the Dungeons and Taverns datapack, preventing special boss enchantments from appearing on regular loot. Features: Fixes how the game adds […]

Bloxy's Structures Mod (1.21.4, 1.20.1) – More Structures with 4 New Bossfights
1.21.4forge

Bloxy's Structures Mod (1.21.4, 1.20.1) – More Structures with 4 New Bossfights

Bloxy's Structures Mod adds a new dimension called the Realm of Adventures, where unique structures, bosses, and enemies await you. By overcoming its challenges, you will obtain new items and tools that will help you on your journey. Features: New Dimension: Realm of Adventures Adds a completely new dimension called Realm of Adventures. Designed as […]

ARKANE DOMAINS Mod (1.21.1, 1.20.1) – Explore Supernatural Boss
1.21.1forge

ARKANE DOMAINS Mod (1.21.1, 1.20.1) – Explore Supernatural Boss

ARKANE DOMAINS Mod is an adventure-survival mod that introduces the idea that each biome has its own “domain”, ruled by a powerful entity called Arkane. The mod makes the Minecraft world feel like a map of many supernatural realms, each with its own boss and unique loot. Features: The mod adds powerful Arkane entities that […]

Tax Warden Legend Mod (1.21.1, 1.20.1) – Warden Themed End Game Gear
1.21.1forge

Tax Warden Legend Mod (1.21.1, 1.20.1) – Warden Themed End Game Gear

The warden mob is a boss mob that protects Ancient Cities from external threats. But despite being a boss mob, killing the Warden does not reward the player much. Official remarks from Minecraft developers suggest that the Warden is a mob that is not supposed to be killed. The warden has a lot of health […]

Unusual End Mod (1.21.1, 1.20.1) – Endstone Golem Boss Fight
1.21.1forge

Unusual End Mod (1.21.1, 1.20.1) – Endstone Golem Boss Fight

Unusual End Mod is a mod aimed at expanding the existing content in the End dimension without adding dozens of mineral resources that make no sense. With this premise, the mod adds coherent content to that dimension. With this mod installed, exploring the End dimension will reveal some new structures, new creatures, as well as […]

Mowzie's Mobs Mod (1.21.1, 1.20.1) – Slay Bosses for Their Gear
1.21.1forge

Mowzie's Mobs Mod (1.21.1, 1.20.1) – Slay Bosses for Their Gear

Mowzie's Mobs Mod adds a variety of fictional creatures to your Minecraft world, each with unique AI, smooth animations, and a rich atmosphere. This mod challenges you to face new bosses and enemies. If you defeat them, you can claim their magical abilities and powerful items for yourself. Get ready for exciting new battles against […]

Macabre Mod (1.21.1, 1.20.1) – New Dimension Of Blood And Gore
1.21.1forge

Macabre Mod (1.21.1, 1.20.1) – New Dimension Of Blood And Gore

Macabre Mod introduces a new fearsome dimension into the game. This new dimension is filled with flesh and gore, and has many monsters to fight and structures to explore. Surviving this dimension is a challenge as death awaits you at every corner. There are forty new mobs, a new boss mob and a lot of […]

Craftable Totem Of Undying – The Craftables Series Mod (1.21.1, 1.20.1)
1.21.1fabric

Craftable Totem Of Undying – The Craftables Series Mod (1.21.1, 1.20.1)

The Totem Of Undying is arguably one of the most powerful items in the game. With this item in your hand, you can defeat death. This will specially be useful when dealing with boss mobs and other difficult situations. Obtaining a Totem Of Undying in survival is a difficult task. You'll need to hunt down […]

Boss Ultimatum Mod (1.21.1, 1.20.1) – Make Boss Fights Count
1.21.1forge

Boss Ultimatum Mod (1.21.1, 1.20.1) – Make Boss Fights Count

Boss Ultimatum Mod stops you from easily beating bosses by dying and respawning over and over. Normally, you can just keep running back to a fight to slowly wear down a boss. This mod changes that by punishing you for dying. When you die, the boss can heal a bit of its health or even […]

Wither Storm Combat Mod (1.21.5, 1.20.1) – Boss Fight with New Attacks
1.21.5forge

Wither Storm Combat Mod (1.21.5, 1.20.1) – Boss Fight with New Attacks

Wither Storm Combat Mod adds compatibility between the Wither Storm mod and the Better Combat mod. It connects these two mods so you can use the special attacks from Better Combat to fight the giant Wither Storm boss. This patch makes the eye of the storm a target you can hit with new combat moves. […]

Twilight Tweaks Mod (1.21.1, 1.20.1) – A True Final Boss to Conquer the Forest
1.21.1forge

Twilight Tweaks Mod (1.21.1, 1.20.1) – A True Final Boss to Conquer the Forest

Twilight Tweaks Mod adds configurable features to The Twilight Forest mod. This addon introduces a final boss spawner, giving the dimension a new ultimate challenge. By default, the spawner summons a very strong husk with reinforcements to fight. The mod also allows you to change what the spawner does, like summoning a different mob or […]

Ender Dragon Loot Mod (1.21.1, 1.20.1) – Harness The Power Of The Ender Dragon
1.21.1forge

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 […]

Combat Effects Mod (1.21.1, 1.20.1) – Trigger Effects When Entities Enter Combat
1.21.1fabric

Combat Effects Mod (1.21.1, 1.20.1) – Trigger Effects When Entities Enter Combat

Combat Effects Mod provides an effects system when entities participate in combat, helping to enhance the combat experience. Supports the use of regex to customize the effect activation conditions. Various effects can be applied to each situation, from boss fights to PvP, creating flexible combat mechanisms. Features: Trigger effects when entities enter combat. Regex support […]