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Minecraft Java 1.21 Mods

Browse 1,187 free mods for Minecraft Java 1.21 — popular picks include Loot Integrations: DungeonZ, Antique Runes: Medieval RPG, Boss Crosshair-4.

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Loot Integrations: DungeonZ
1.21fabric

Loot Integrations: DungeonZ

Adds better loot to DungeonZ Structures and Bosses, including modded loot

6.6kdownloads
Antique Runes: Medieval RPG
1.21.1neoforge

Antique Runes: Medieval RPG

Get ready for a unique Medieval RPG modpack, featuring many new armors & tools. And also features, such as leveling, bosses, quests, dungeons and many more!

6.4kdownloads
Boss Crosshair-4
1.20.2

Boss Crosshair-4

Crosshair with another Shape and with Shading

6.2kdownloads
The Old LMB
1.20.1forge

The Old LMB

A Mod that adds new Bosses, more angry mobs and some animals from our planet

6.2kdownloads
Boss AI Tweaks
1.21.1neoforge

Boss AI Tweaks

Mob AI Tweaks but only the boss changes

6.1kdownloads
Boss Crosshair-5 (Dot)
1.20.2

Boss Crosshair-5 (Dot)

Crosshair with another Shape and with Shading

6.1kdownloads
Configurable Boss Bars
1.21.1fabric

Configurable Boss Bars

A simple mod allowing for the configuration & stacking of boss healthbars

6.0kdownloads
BossBound Relics [Boss Drops & Weapons]
1.20.1forge

BossBound Relics [Boss Drops & Weapons]

New weapons as a reward for beating bosses !

5.9kdownloads
Bossbar Expansion
1.21.7

Bossbar Expansion

This data pack/Mod add bossbar to minibosses in the game like Warden, Elder Guardian and Evoker.

5.7kdownloads
Gigantic Squid
1.21.4

Gigantic Squid

This datapack adds a new 3D animated ocean boss, the gigantic squid! No resource pack required!

5.7kdownloads
Void's Titans
1.21.11

Void's Titans

This Datapack will add 28 new bosses and 4 new superbosses! The Titans are nothing short of walking calamities.

5.7kdownloads
Who Am I - Not Me
1.21.1neoforge

Who Am I - Not Me

Tear a dragon's heart from its chest, stitch a lich's spine into your own, forge the essence of bosses into your very body. Are you still you?

5.6kdownloads
Dimensions & Dungeons
1.21.1neoforge

Dimensions & Dungeons

Explore a new world full of undiscovered possibilities, with new dimensions, bosses, mobs and structures.

5.5kdownloads
Croparium: Cataclysm
1.21.1neoforge

Croparium: Cataclysm

Turn L_Ender's Cataclysm ores into farmable crops— grab materials once, and regrow them nonstop, instead of endless boss-hunting!

5.4kdownloads
Hazbin Hotel + Helluva Boss Pack
1.21.11

Hazbin Hotel + Helluva Boss Pack

Hellaverse resource / data pack for 1.21.11!

5.4kdownloads
Cobblemon Raid Dens Addon - Auto Raid Den Designs
1.21.1neoforge

Cobblemon Raid Dens Addon - Auto Raid Den Designs

Assigns Cobblemon Raid Dens Desgins based upon the Bosses Element Type instead of using Name Based Json.

5.2kdownloads
Ea Nasir's Items and Bosses Pack
1.21.11

Ea Nasir's Items and Bosses Pack

Introduces new bosses, items, and more!

5.2kdownloads
Cobble+ SMP
1.21.1fabric

Cobble+ SMP

This modpack brings together the Cobblemon mod with enhanced Minecraft gameplay, featuring breeding, TMs, new tools, bosses, and dungeons for an epic adventure.

5.2kdownloads
Create Echoes of the Great Derailment
1.21.1neoforge

Create Echoes of the Great Derailment

Rebuild the Machine Age after the Great Derailment in a steampunk Create modpack with quests, staged progression, automation, colonies, bosses, exploration, custom mechanics, powerful machines, and a world full of secrets.

5.1kdownloads
Blue Depths
1.21.11

Blue Depths

This is a datapack that improves the Minecraft ocean and river ecosystem by adding new mobs, blocks, and a brand new ocean boss. The new sea creatures include Orcas, Sharks, Sturgeons, Jellyfish, Catfish, and Tuna

4.9kdownloads
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
Mini-boss Boss Bars [Configuration Datapack]
1.21

Mini-boss Boss Bars [Configuration Datapack]

A configuration datapack for the Mini-boss Boss Bars mod that allows you to configure whichever boss you choose to not show their boss bar.

4.8kdownloads
Boss Warps
1.21fabric

Boss Warps

A lengthy escapade and a fierce scrimmage, followed by an effortless return home. Based on the Boss Rifts mod by jodlodi, but for the Modrinth ecosystem!

4.8kdownloads
Relics Of The Fallen Gods
1.21.8fabric

Relics Of The Fallen Gods

Relics Of The Fallen Bosses Adds custom Legendary Items that have a chance to drop when you kill a boss Items include: The wither Hammer Warden Chestplate and Ender Dragon Bow

4.8kdownloads
[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
VAMPACK
1.21.1neoforge

VAMPACK

a super fun and light modpack with 98 mods! You can fight with bosses, create spells, build machines and get super OP!

4.7kdownloads
Aether Plus 2
1.21.1neoforge

Aether Plus 2

💀 Conquer Bosses • 🐦Flying Pets • ☁️ Sky Is The Limit • ✨ Acquire Gear • 💎 Shaders| ✅ Play Now With Friends

4.5kdownloads
Manifestation of the souls
1.21.1neoforge

Manifestation of the souls

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

4.4kdownloads
⚔️ 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
Relics Of The Fallen Bosses
1.21.8fabric

Relics Of The Fallen Bosses

Relics Of The Fallen Bosses Adds custom Legendary Items that have a chance to drop when you kill a boss Items include: The wither Hammer Warden Chestplate and Ender Dragon Bow

4.1kdownloads
Daily Boss X Mowzie's Mob
1.20.1

Daily Boss X Mowzie's Mob

Compat Daily Boss with Mowzie Mob

4.0kdownloads
You Like Food? 2!
1.21.1neoforge

You Like Food? 2!

Travel the world, defeat bosses, make stuff, and eat all the food along the way, gaining stronger with each new food you eat.

4.0kdownloads
Epic Bosses
1.21.1neoforge

Epic Bosses

A mod for epic bosses in minecraft that adds a lot of unique content.

4.0kdownloads
KinglyBosses
1.7.2

KinglyBosses

KinglyBosses is a Minecraft plugin for managing custom bosses. It allows summoning powerful bosses, generating custom items, and enabling player spectating. It also offers features like boss lists, spawn zone management, and easy configuration reloading.

3.9kdownloads
Who Am I: Core
1.21.1neoforge

Who Am I: Core

Tear a dragon's heart from its chest, stitch a lich's spine into your own, forge the essence of bosses into your very body. Are you still you?

3.8kdownloads
Vendrick: The eternal guardian Boss Fight
1.17spigot

Vendrick: The eternal guardian Boss Fight

The guardian has gone rouge, bringing an epic bossfight, custom items, and more!

3.8kdownloads