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Fabric Mods for Minecraft 1.21

Browse 78 free Fabric mods for Minecraft 1.21 — popular picks include Brutal Bosses - Custom Bosses, Marium's Soulslike Weaponry, Pumpkillager's Quest.

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Brutal Bosses - Custom Bosses
1.21.1neoforge

Brutal Bosses - Custom Bosses

Adds 29+ Bosses to dungeons and structures. Allows custom boss creation through datapacks

20Mdownloads
Marium's Soulslike Weaponry
1.20.1fabric

Marium's Soulslike Weaponry

New bosses and legendary weapons!

20Mdownloads
Pumpkillager's Quest
1.21fabric

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!

2.1Mdownloads
DarkBosses - RPG Bosses Advancements
1.21.1fabric

DarkBosses - RPG Bosses Advancements

RPG boss summoning information and grants extra experience for defeating bosses

1.5Mdownloads
Tensura: Not Enough Bosses
1.21.1neoforge

Tensura: Not Enough Bosses

Official Addon for Tensura: Reincarnated adding new bosses to the game for quests.

1.1Mdownloads
Boss Checklist
1.21.1fabric

Boss Checklist

Adds a convenient list of bosses with brief information about them.

1.1Mdownloads
ANARCHY  Minibosses (RPG Series Plus)
1.21neoforge

ANARCHY Minibosses (RPG Series Plus)

Rogue Exile inspired Faction mod!

684kdownloads
Mebahel's Creatures - Draugr Invasion
1.20.1fabric

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.

641kdownloads
Wizard Tower
1.21.8fabric

Wizard Tower

Adds a Wizard Tower along with a new wizard mob mini boss

387kdownloads
Slayer's Beasts
1.21.4neoforge

Slayer's Beasts

Explore new structures and biomes to face off against beasts and bosses on the surface, or in treacherous dungeons.

357kdownloads
Aerial Hell
1.21.11fabric

Aerial Hell

Sky Dimension & Dungeons, Bosses - from 1.16.5 to 26.1.x

202kdownloads
Chrono Dawn
1.21.9neoforge

Chrono Dawn

Adds Chrono Dawn, a time-themed dimension with custom portals, boss battles, and time-manipulating artifacts. Supports Fabric & NeoForge.

120kdownloads
Rival Trespassers
1.21fabric

Rival Trespassers

Fight survivalist minibosses in structures - just like you!

114kdownloads
CRD Converters
1.21.1neoforge

CRD Converters

An addon for Cobblemon Raid Dens that allow Myths and Legends items + others to convert raid dens into specific bosses.

109kdownloads
Antarchy
1.21.1neoforge

Antarchy

A re-imagining of the classic Orespawn mod adding 45+ mobs, 8+ bosses, 3 fleshed out dimensions, and more

51kdownloads
Cobblemon - Poke Legends
1.21.1fabric

Cobblemon - Poke Legends

Pokemon Cobblemon Pack - QoL and Performance mods! The server included in the pack has Raids, Gyms, Mega Evolution, Tera, Alpha Bosses, Paradox, Legendary Pokemon, GTS and more!

41kdownloads
Fantasy RPG - RPG Quests, Bosses & Magic | Fantasy & RPG
1.21.1fabric

Fantasy RPG - RPG Quests, Bosses & Magic | Fantasy & RPG

A new modpack that combines the best Fantasy and RPG mods!

32kdownloads
Mythic Horizonss
1.21.11fabric

Mythic Horizonss

An epic RPG & Adventure modpack for Fabric! Features overhauled combat, massive boss fights, breathtaking new biomes, and maximum FPS optimization.

28kdownloads
Trial Guardians
1.21neoforge

Trial Guardians

Procedural Trial Chambers and Bosses!

27kdownloads
Our Story - Earth
1.21fabric

Our Story - Earth

A large exploration and survival modpack with custom quests, world generation, dungeons, bosses, building, farming, and multiplayer adventure.

25kdownloads
Manifestation of the souls (JOJO MOD)
1.21.1neoforge

Manifestation of the souls (JOJO MOD)

Manifest your soul as a stand, kill bosses, follow quest lines and find structures

23kdownloads
Realmwalker
1.21.1fabric

Realmwalker

Magical invaders roam the land - bosses, weapons, and loot!

14kdownloads
RPG Origins - Rise of Power
1.21.1fabric

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.

11kdownloads
Boss Results
1.21fabric

Boss Results

Defeating a boss sends a clickable chat message that shows performance statistics for every participating player in that boss fight.

11kdownloads
The Nether Dungeons
1.21fabric

The Nether Dungeons

I have added a dungeon that spawns at the depths of the nether which has a summing room where you have a chance to summon 3 different bosses.

10kdownloads
Gateway of Doom
1.21.1neoforge

Gateway of Doom

Throw a Devil Eye to open a configurable combat gateway. Survive random or fixed waves, bosses and timed challenges for rewards—or suffer debuffs. Includes auto gateways, custom mobs, profiles, admin menus, commands, diagnostics, plus a stable add-on API.

10.0kdownloads
bosses' addition
1.21fabric

bosses' addition

a great challenge for those who are bored from vanilla, all in vanilla.

9.8kdownloads
The Catamount
1.21.1neoforge

The Catamount

The Catamount is a mix between an ambiance and a boss mod

8.7kdownloads
Hostile Mob Better Configuration - HMBC
1.21.11fabric

Hostile Mob Better Configuration - HMBC

Hostile Mob Better Configuration gives you full control over hostile mobs in Minecraft. Attribute and behavior, or turn mobs into powerfupl boss variants to create a completely new difficulty and combat experience. Each mob can also have its own name.

8.6kdownloads
Boss Checklist - Stellarity Compatibility
1.21.1neoforge

Boss Checklist - Stellarity Compatibility

Integrates the Empress of Light boss from Stellarity as an entry in the Boss Checklist mod.

6.6kdownloads
Boss Checklist - Annihilation Recreated Compatibility
1.21neoforge

Boss Checklist - Annihilation Recreated Compatibility

Integrates the Annihilation boss from Annihilation Recreated as an entry in the Boss Checklist mod.

4.9kdownloads
[DCME] Dynamic Contextual Music Engine
1.21.11fabric

[DCME] Dynamic Contextual Music Engine

Replaces vanilla music with a dynamic soundtrack that reacts to biomes, time of day, weather, battles, bosses, structures, etc. Fully customizable via resource packs and JSON; no programming required

4.8kdownloads
⚔️ Chronicles of Valor | Mythic Edition ⚔️
1.21.11fabric

⚔️ Chronicles of Valor | Mythic Edition ⚔️

Explore. Fight. Conquer. An immersive RPG modpack packed with epic bosses, new realms, and legendary adventures. ⚔️🌍✨

4.3kdownloads
Cobblemon Origins Modpack
1.21.1fabric

Cobblemon Origins Modpack

The best Cobblemon Modpack for performance, aesthetic and QOL features that you'll ever see. The server includes Raids, Ranked, Bosses, Player Gyms, Breeding, Cosmetics and so much more custom features!

3.7kdownloads
Harrowing Hells
1.21fabric

Harrowing Hells

[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.

3.6kdownloads
MRPG - Massive Role Play Game
1.21.1fabric

MRPG - Massive Role Play Game

This Modpack is an Fantasy RPG Modpack with many news like Biomes Weapons Bosses Structures Leveling System and more

3.5kdownloads