Minecraft Java 1.21 Mods
Browse 519 free mods for Minecraft Java 1.21 — popular picks include candyrush, MOAR Tools, Magma Craft Remastered.
Updated daily
candyrush
CandyRush is an exciting team-based treasure hunting game where players compete to collect the most points! Join one of four teams, explore the map, find treasure chests, defend NPCs from monsters, and battle epic bosses to become the ultimate champion!
MOAR Tools
MOAR Tools is a progression and combat expansion mod that adds three new gear tiers, two dungeon systems, a full boss encounter, and a suite of custom mobs all designed around a dark, End-themed aesthetic.
Magma Craft Remastered
A small mod adds: new biome, new ores, new structures, new boss, new tools, and more!
Folded Iron
A boss/item/weapon/after game content mod
Creations Of Tygrys
Mod made for fun, adding new boss, dimension and structures!
Steve's Custom Bosses Data pack
This data pack adds custom recipes, advancements, challenges, and bosses to the game, all with vanilla mechanics!
Cooper age
mod adds 2 metals and 1 alloy. You can make weapons, tools and armor with them. There is still 1 boss

ServerWardenFight
This plugin spawns a Warden at worldspawn once per day at a random time between 11 AM and 8 PM, broadcasting its arrival and tracking its health in a bossbar. It can also be spawned manually, and the killer earns 750–1500 Vault dollars, announced in chat
Berry's Land
**Berry's Land** is an adventure mod that introduces a beautiful new dimension with custom progression, unique creatures, giant trees, Compote Rivers, and an exciting boss fight. Discover a mysterious world and earn powerful rewards!
Cake Tower HUD Plus
HUD overhaul and optional server-side combat stats for the Cake Team Towers · Chapter 3 map—health, hearts, resources, team/mob 3D bars, stats panel, boss-bar toggles; v6+ damage attribution, K/A/D taken, DPS, session history. Auto-hides elsewhere.
BulsciCraft
Enjoy this brand new mod that adds New Dimensions, Mobs, Items, Blocks, Unusual things and even a bossfight...
Jeff: The Awoken Core
Face Jeff, a late-game raid boss who tests your skill, strategy, and timing to earn powerful loot and master Minecraft combat
Chronotide
A time-bending dimension mod filled with fractured biomes, echoing bosses, and mysterious relics. AI-designed mod.

Bosses Reimagined
This is release of Bosses Reimagined. It is release but ,if you have any bugs you can message me.
EpicMobs
mobs, boss, dungeon, skills
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.
The Protector
Add a BOSS, named The Protector and stuff bout him
Osimu Boss Fights
This mod adds very unforgiving bosses and cool rewards. Most of them will be glass cannons, strength alone won't be enough.
Custom Boss Template
Easy custom boss template for Minecraft 1.21+. Fully configurable health, name, appearance, phases, attacks, messages and rewards. Perfect for adventure maps and servers.
Trick Quiver
An archery combat mod: switch between 12 magic arrows, craft bow attachments, battle clockwork archers, and raid a Japanese-style boss shrine. One arrow solves everything.
Empowered Armory
This mods adds addition weapons, items, weapons, tools, blocks, bosses and armor
BossySky
Polish Author's Boss Plugin for your Minecraft server!
Monsterwalll's Bosses And Stuff
A mod I made that adds Bosses, Structures and more! Note that this is my first mod so please comment what you think should be fixed in future mods.
Endorium Mod
Endorium is an end-game expansion mod for Minecraft that introduces a new mini boss, new wood type and new tier of equipment beyond Netherite.
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!
Attack Mastery
Grindy attack skill progression! Kill levelled mobs to level up your Attack Mastery (max 200), gaining up to +1000% damage. Bossbar tracks XP — perfect for RPG servers with Levelled Mobs!
chicken boss
Adds a powerful God Chicken boss that attacks players by spawning creepers and iron golems.
Dynamic Difficulty More Hard
Level Adjustment for Mobs and Bosses in the DENLAND Modpack by Guzk
⚡EvilMobs - Create your custom bosses
Multifunctional Bosses with simple configuration

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.
ThicMobKai - Dungeon, Boss and Mob RPG System
A premium dungeon, boss, and mob progression plugin with EN/VI support.
Floreláis
Created in 1 week for my high school art class. It is a very basic mod adding 6 flowers and a boss. Similar feel as old 1.7.10 mods.
néant+
Adds a new dimension and mobs, bosses. With ores and armor to match. The mod has a dark visual theme.
Boss Radar
Craft a special compass that senses powerful mobs lurking nearby. Hold it to see a color-coded ring around your crosshair with the boss's name and distance, turning red as danger closes in — perfect for staying alert to the Ender Dragon, Wither, Warden
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
Custom Entity API
A datapack API allowing anyone to add custom entities, or bosses, to Minecraft: Java Edition, powered by Animated Java.