Fabric Mods for Minecraft 1.21
Browse 18 free Fabric mods for Minecraft 1.21 — popular picks include Marium's Soulslike Weaponry, Pumpkillager's Quest, Mebahel's Creatures - Draugr Invasion.
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Marium's Soulslike Weaponry
New bosses and legendary weapons!
Pumpkillager's Quest
🎃 SpookyJam 2022: Help out the Pumpkillager! With custom encounters, rewards and a boss fight you'll get immersed in the story. Spawn him by breaking a pumpkin in this spooky scary Halloween style mod!
Mebahel's Creatures - Draugr Invasion
This mod introduces a full bestiary of Draugrs inspired by Skyrim, a boss with advanced AI, powerful magical items, shared multiplayer chests, new structures, and a raid system that turns the player into the hunted.
Chrono Dawn
Adds Chrono Dawn, a time-themed dimension with custom portals, boss battles, and time-manipulating artifacts. Supports Fabric & NeoForge.
Antarchy
A re-imagining of the classic Orespawn mod adding 45+ mobs, 8+ bosses, 3 fleshed out dimensions, and more
Manifestation of the souls (JOJO MOD)
Manifest your soul as a stand, kill bosses, follow quest lines and find structures
Realmwalker
Magical invaders roam the land - bosses, weapons, and loot!
RPG Origins - Rise of Power
An action-packed RPG modpack with custom Origins systems, unique weapons, epic bosses, challenging dungeons and an open world that rewards exploration and strategy.
bosses' addition
a great challenge for those who are bored from vanilla, all in vanilla.
MRPG - Massive Role Play Game
This Modpack is an Fantasy RPG Modpack with many news like Biomes Weapons Bosses Structures Leveling System and more
glorbins armoury
a mod that contains epic weapons and supreme bosses

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.
Arsenal RPG Series Mod (1.21.1, 1.21) – Conquer Legendary Weapons
Arsenal RPG Series Mod is a Minecraft mod within the RPG Series, focused on delivering a thrilling combat experience with legendary weapons. Inspired by Minecraft Dungeons and World of Warcraft, this mod does not allow players to craft weapons but instead requires them to conquer them by defeating powerful bosses or exploring end-game dungeon chests. […]
Fishing Expansion (Fabric/Forge/NeoForge/Quilt)
Enhance the fishing experience with more loot, new enchantments, new boss, real mob fishing, special fishes, turtle armor and more!
RPG Origins - Origins & RPG | QUESTS
NEW IMPROVED QUESTS! An action-packed RPG modpack with custom Origins systems, unique weapons, epic bosses and challenging dungeons.
World Bosses
Summon, fight, and loot epic world bosses across every dimension, with custom shrines, ritual items, raid rewards, trophies, and a final primordial boss.
Oramoun RPG
Oramoun RPG is a fantasy-driven Minecraft RPG modpack focused on exploration, powerful progression, and epic combat in a massive world filled with new biomes, legendary weapons, dragons, and challenging boss dungeons.
Imbossible
Minecraft bosses with the Giant Slime and Frost Titan. Featuring custom attacks, summons, and unique weapon drops.