Minecraft Java 1.21 Mods
Browse 343 free mods for Minecraft Java 1.21 — popular picks include ultimatium weapons, Theosis, Fortnite 3: Victory Royale.
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ultimatium weapons
get the power to progress to high power with hard bosses
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
Fortnite 3: Victory Royale
Featuring GUNS, BOSSES, OP WEAPONS & ARMOR, MAGICAL CROPS, INSANE TECH this pack is loaded with crazy mods that'll throw you on a wild ride
Boss Checklist - Mob AI Tweaks Compatibility
Integrates the Ominous Phantomare boss as well as the reworked Elder Guardian and Ravager from Mob AI Tweaks as entries in the Boss Checklist mod.
Iron Islands
Adds 6 different dimensions and 4 bosses.
CrisisCraft
This mod pack features Magic, Battles, Bosses, and a new immersive gameplay experience.
SC Final Adventure
Challenge countless bosses while grinding for god-like gear and dive into brutal endgame gateway bossrush
The World of Crackers
A new cracker biome with a new boss!
Peaceful Alternative
Blocks all hostile mob spawns (incl. spawners, bosses, summon command) and replaces hostile- & animal-kill-based recipes with peaceful alternatives in the future - full non-combat progression.
Cobblemon Dark
A Cobblemon modpack, featuring Create, Create Aeronautics, exploration, trainers, bosses and more.
POIs and Raid-Bosses
Trigger raid‑style events at custom Points of Interest where players sacrifice items for rewards and hidden enemy challenges.
ProtoMP
The world has fallen. Manage thirst and radiation, wield modern weaponry, and engineer your survival against deadly mutants and bosses in a ruined world.
Boss Checklist DivineRPG Addon
Adds DivineRPG bosses to Boss Checklist.
Prism Drift
Balanced without magic and guns, adventure filled with loads of dimensions and various bosses
Limitbreak
Minecraft transformed into a roguelite wave-survival RPG with classes, relics, bosses, and permanent progression.
TensuraNewWorld
Welcome to Tensura New World, Select your race, Level up your skills, Explore, Fight bosses, And become the character you wanna be!
Vanilla Over The Top
This project adds multiple vanilla+ mods which add: An expansion to illagers, a much bigger and taller nether with new structures and bosses, a new way to get to the end, along with the end being reworked and also minecraft dungeons styled enchanting.
Roguelike MC
Roguelike Upgrade System offers special upgrades, item decay, boss progression, and full customization for casual or hardcore play.
We The Horsemen
We The Horsemen – A modded Minecraft experience focused on economy, automation, and adventure. Build with Create mod, trade in a player-driven economy, and conquer bosses across dimensions. Hard mode, no easy teleportation—logistics and teamwork matter!
Tensura Abyssal Reincarnation
Tensura Abyssal Reincarnation is a dark, cozy SMP modpack blending magic, exploration, and survival. Master spells, automate with Create, and face deadly bosses in a semi-anarchy world where freedom rules and every choice shapes your path.
re;Tensura
🧬 ᴿᵉ;tensura — A TTIGRAAS Minecraft SMP featuring factions, PvP, skills, nations, bosses, dungeons, and constant progression. Active staff, balanced gameplay, events, and a custom 1.21.1 modpack. Join: https://discord.gg/Ya6BA38uUY
CrazyMC - A Special Apocalypse | Apocalypse with Quests!
A chaotic Minecraft adventure featuring zombie hordes, powerful bosses, firearms, magic, advanced technology, massive dungeons, and endless progression.
Summoner Mod
A mod that adds 4 bosses and 4 structures. Almost no dependencies!
Enigmatica 10 - Bosses Unleashed
This modpack adds more bosses to the Enigmatica 10 modpack
Luminae
A Steampunk Fantasy Exploration with over 7+ dimensions with bosses and legendary loot
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.
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
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.
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.
Theosis — RPG Progression Plugin (Loot, Gems, Bosses, Perks)
Apotheosis-inspired RPG progression! Modular loot, sockets, gems, custom towers & scaling bosses.
Ominous Wither
Adds a thrilling boss fight experience, summoned by building the Wither with Bad Omen.
Summonable Steve
A summonable Steve boss with complex AI and behaviors
Super Duper Modern Vanilla Plus
Large modpack that completely changes experience revamping world generation, adding more bosses, food, tools and still makes the game feel vanilla-like!
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.
![Elexir [CSD]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/466805.webp)
Elexir [CSD]
Step into ELEXIR - This modpack is magic, automation and adventure. Here you can explore the world as well as magic or mechanisms to make life easier. Ancient artifacts, bosses other worlds are created for gameplay variety