Minecraft Java 1.21 Mods
Browse 106 free mods for Minecraft Java 1.21 — popular picks include Crowncrawl, Harsh Encounters, Harry's Hostile Expansion.
Updated daily
Crowncrawl
It is a mod still in development that aims to improve the vanilla experience of the game by adding new bosses and items.
Harsh Encounters
Adds custom strong bosses to the game.
Harry's Hostile Expansion
Adds many different hostile mobs, mechanics, structures & bosses.
Undermagic II
Progression expansion featuring flashy weapons, structures, and a challenging boss fight
ZKQ – Zombie King Quest (Boss Fight + Structures + Progression)
Adds a powerful Zombie King boss, custom structures, Frux ore progression, and epic weapons for adventure-focused survival gameplay.
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
The World of Crackers
A new cracker biome with a new boss!
Kings & Monsters
An adventure and progression mod featuring the Ogre Tribe, guarded outposts, escalating patrols, powerful relics, a massive fort, and a multi-stage boss fight.
Lava Chicken Boss
Adds a new boss and an exciting battle with him, as well as his minions and some items.
Headaches!
Headaches! is a Minecraft mod that adds new structures inhabited by the most absurd and unconventional mini-bosses—all characterized by having disproportionately large heads. Discover a challenging new adventure!
Electric Boogaloo
Adds a new zombie dancing boss, Electric Boogaloo with his iconic Backup Dancers from the Plants Versus Zombies Games
Summonable Steve
A summonable Steve boss with complex AI and behaviors
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.
The Angry Ghast
Three new Ghast themed bosses, one for each dimension
stupid horror mod
this is a joke horror mod that adds a scary biome, where you have to kill scary creatures to collect scary souls to later craft into a boss altar and fight the boss. there is an ingot with good weapons that can take down most of the scary creatures.
Basalt Arena
This mod adds 3 new bosses and a new structure to Minecraft.
Void king dimension
Adds an epic boss fight with the Void King and his minions, spreading corruption, and powerful weapons.
Bosses And Mobs
Adds More Bosses To Minecraft,More Tools And Armor To Minecraft again...
Techless
A Mod that adds 3 new bosses with unique phases Fight them to craft Legendary weapons in this Vanilla+ progression mod Made using Mcreator
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.
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.
Yarlan
Yarlan is a 16× RPG resource pack for servers: cohesive weapons & armor, custom mob/BOSS visuals, accessories, crops, and skill icons/UI. Activates on mc.aelris.cn (Java 1.21.1). First load may take a few minutes.
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.
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
Telum Solaris - At the Forest's Edge
Telum Solaris aims to add new weapons, armor and boss to minecraft for every stage of minecraft's progression. It is currently my first and only project!
randomitems-mod
Adds /randomitems, /randommobs, /randomweapon, /randomarmor, /randomtool and /randomquest commands that periodically give random items, spawn random mobs, swap your gear, or assign 5-minute random quests with a boss bar and personal sidebar.
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).
Empowered Armory
This mods adds addition weapons, items, weapons, tools, blocks, bosses and armor
Marium's Soulslike Weaponry Mod (1.21.1, 1.20.1) – Formidable Bosses
Marium's Soulslike Weaponry Mod is a combat-focused mod for Minecraft that introduces over 20 new weapons, each with unique abilities and epic designs. Beyond weaponry, the mod also adds 15+ new mobs, including 4 bosses, as well as some armor and thematic blocks connected to these fearsome foes. Features: New Weapons – Most weapons are […]
Formidulus Mod (1.21.1, 1.21) – New Boss, Weapons, Structures And More!
Formidulus Mod is a horror mod that introduces a new soul-like boss into the game. The mod also adds new weapons, blocks, mobs, and structures. The mod is continuous development and new features will be added over time. A list of features as noted by the developer is given below. Features: 1 Challenging Soulslike Boss […]