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Minecraft Java 1.21 Mods

Browse 77 free mods for Minecraft Java 1.21 — popular picks include Arthropod Phobia Expansions + Horror Bosses (Spiders, Arachnophobia), Pumpkillager's Quest, Withering Heights: Revamped Wither.

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77 mods

1.21.1neoforge

Arthropod Phobia Expansions + Horror Bosses (Spiders, Arachnophobia)

ArPhEx: Intricate, phobia-inducing, realistic mobs, and supernatural bosses

8.8Mdownloads

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

1.21fabric

Withering Heights: Revamped Wither

Turning the Wither into something worth calling a boss.

650kdownloads

1.21.1neoforge

Arda's Sculks (Ancient City Portal / Deep Dark Dimension)

Arda's Sculks mod is a mod that improves the ancient city in the game and offers the ability to open the ancient portal in the ancient city. This mod adds many deep dark biomes to the game and many boss creatures found in these biomes.

122kdownloads

1.16fabric

Brutal Nightmare : Insane Difficult

Minecraft too easy? Try this mods with nearly 40 modifiers - settings new mini bosses, which made minecraft become hard & insane. Enhanced hostile mobs' AI & Angry passive mob. Zombie place/break blocks. Skeleton,Spider,Creeper,Enderman.

84kdownloads

1.21.1neoforge

Invincible: Overdrive

A Modpack base on the comic and TV show "Invincible", focusing on the mod "Invincible Conquest", bringing in challenging adventure with difficult mobs and bosses to conquer

14kdownloads

1.21.11

Vaults of Abandon

Conquer the Vault, in the Vaults of Abandon - Dungeon Datapack. Battle Epic Bosses, Explore vast dungeons, and utilize powerful magic. Access over 50+ Custom Items, and battle over 20+ Custom Mobs.

13kdownloads

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

1.21.9

Moar Bosses

Moar Bosses adds 7 types of randomly spawning bosses into your Minecraft world. Each boss has 3-5 unique and crazy magical attacks, and drop cores that can be used to craft magic wands. The bosses have custom textures using Optifine or Reselect or CET.

8.3kdownloads

1.21

Nasir's Null Boss

Adds a new horrifying foe to your game...

7.5kdownloads

1.21.1forge

Titans

This mod is made for those who love adventures. Adds new ore, materials, items, structures, and a boss

7.4kdownloads

1.21.1neoforge

Hollow Steve [HORROR]

Adds Hollow Steve, a horror stalker boss that haunts you, grows stronger after each defeat, and must be killed 10 times to survive.

6.2kdownloads

1.21.1neoforge

Boss AI Tweaks

Mob AI Tweaks but only the boss changes

6.1kdownloads

1.21.1fabric

Configurable Boss Bars

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

5.9kdownloads

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

1.21.1neoforge

KamenRiderBossYOUandME

Henshin! Step into this heated conflict. In “The Final Boss, You and Me”, it's like the fateful duel of Kamen Riders. The shining belt is the symbol of glory. Amid the intertwining of light and shadow, only the strongest can break through the darkness

3.7kdownloads

1.21.11fabric

Relics of Ruin

A custom weapon system featuring boss-themed swords with unique abilities and mechanics.

3.4kdownloads

1.21.9

Random Bosses

The WASD Random Bosses Datapack turns naturally spawned mobs in the world into bosses. It was inspired by an old mod that is similar in function. Bosses spawn with random power levels, random sizes, and loot based on difficulty.

2.9kdownloads

1.20.5

Warden bossfight

Turns a player into a boss with warden and sculk-based abilities

2.1kdownloads

1.21.5neoforge

DeadSummons

This adds Magic of evil. We have three magic types, one boss. and items for your world!

1.6kdownloads

1.21.1neoforge

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

1.4kdownloads

1.21.4neoforge

Deepcraft

A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.

1.3kdownloads

1.21.4neoforge

Rick's Roll

Adds rick astley as a boss and a rickroll music disk.

1.3kdownloads

1.21.1neoforge

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.

883downloads

1.21

Ranold's Boss Music (Datapack)

This is a work in progress resourcepack/datapack that adds boss music to bosses in minecraft!

844downloads

1.20.1

Daily Boss X Siren Head: The Arrival

Compat Daily Boss with Siren Head: The Arrival

842downloads

1.21.11fabric

koper_mod

A chaotic Minecraft mod with unique bosses, broken armor sets, and a corrupted dimension a little unbalanced but fun as hell.

727downloads

1.21.4neoforge

stupid horror mod

this is a joke horror mod that adds a scary biome, where you have to kill scary creatures to collect scary souls to later craft into a boss altar and fight the boss. there is an ingot with good weapons that can take down most of the scary creatures.

710downloads