Minecraft Java 1.20 Mods
Browse 143 free mods for Minecraft Java 1.20 — popular picks include Arthropod Phobia Expansions + Horror Bosses (Spiders, Arachnophobia), Pumpkillager's Quest, Guard Illagers.
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Arthropod Phobia Expansions + Horror Bosses (Spiders, Arachnophobia)
ArPhEx: Intricate, phobia-inducing, realistic mobs, and supernatural bosses
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!
Guard Illagers
Evil Guards That Aren't afraid to show who's boss!
Spankster's Horror Craft
Add's in Lore based bosses, like Slenderman, Jeff the Killer, Sirenhead, and Bigfoot!
Cursed Fate: Cursed Tweaks (New Boss Fights!) CursedFate Addon
A Minecraft Mod Based On The Jujutsu Kaisen Cursed Fate Mod!
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.
Insomnia: Hardcore | Origins, Bosses, Skills
The modpack for the sleepless. A challenging RPG adventure with a focus on limited lives, skill trees and dimension based difficulty!
Better Horror (BH)
This is a mod that adds bosses, items and some lore to the game. By: Koner
Fearborne - Horror RPG Adventure
Horror themed RPG with many dungeons, bosses, skill trees, and many more!
The Day Of The Beast
Introduces The Devil, a new boss fight in the game.
Mine Piece World
This modpack creates a battle arena for **One Piece** characters, featuring unique abilities, Devil Fruits, Haki, and iconic locations. Players can engage in PvP and team battles, with multiplayer and AI boss challenges included.
CWSM Enhanced Boss Bars
Cracker's Witherstorm mod Enhanced bossbars for Withered Symbiont and Command Block
JJK Extra Cursed Fate
Become the most powerful sorcerer and kill all the bosses!

Cursed Fate: Cursed Tweaks (New Boss Fights!)
This is an Add-On for the Minecraft mod Jujutsu Kaisen Cursed Fate Mod! This mod is solely an extension for the original mod by ImNotHURAGAN and does not work independently.
Cursed Fate Boss Buff
an addon to "Jujutsu Kaisen Cursed Fate" designed to buff the bosses from the mod
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.
Strange Aeons: Sword and Sorcery
A dark-fantasy survival RPG where you become the monster—or hunt it—while earning power through cursed dimensions, ancient dungeons, and brutal bosses.
Sun Screamer Horror
Sun Screamer Mod adds a flying, stalking boss with creepy explosions and eerie behavior, creating a haunting challenge for players seeking a thrilling and intense Minecraft experience.

Sporeadds
Mod that adds 4 survivors origins and 1 boss origin based of an infected from the spore mod
Sirenhead: Legacy
Added siren head and cartoon cat [Bosses]
Scary Monsters and Nice Weapons
A mod that adds weapons, bosses, and a working XP Stats system
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.
Refined Bossbars
A refined look of minecraft bossbars
Victorian Horror
A gothic/victorian horror-themed mod with dark eerie biomes and mobs, demons and bosses to fight!
Jujutsu Craft Ultimate
Jujutsu Craft Ultimate is a Jujutsu Kaisen-inspired Minecraft modpack where players battle curses, master cursed techniques, and explore a world filled with powerful foes, epic bosses.
Spiders(Horror)
a minecraft mod like Arthropod Phobia Expansions + Horror Bosses (Spiders, Arachnophobia)
the hiker
the hiker, a scary mod that adds a new boss named the hiker, it also add a new biome, the hikers forest. and different variants of the hiker!

Warden bossfight
Turns a player into a boss with warden and sculk-based abilities
HollowRealms - Dark Fantasy RPG
“A brutal dark fantasy survival experience where horror roams the night, ancient bosses guard forgotten dungeons, and the world itself conspires against you. Gather strength, master cursed magic, and survive in a realm born of blight and shadow.”
Piglin Wither
Adds a new piglin wither boss
DeadSummons
This adds Magic of evil. We have three magic types, one boss. and items for your world!
all the horror
This modpack is a combination of all the mods 9, horror mods like cave dweller and the man from the fog. With new mobs from alex mobs and legendary creatures and bosses. While also adding new weapons from scorched guns 2 to add new weaponry for fighting,
Vizer
New strong bosses,weapons and much more!
DarkenDepths
A Mod extending the Deep Dark and creating a new biome adds a new boss and other cool items
Minecraft Eclipse
Went overboard with bosses, dungeons, and magic. Progressive difficulty, Create automation, horror atmosphere. You're gonna die constantly but it's absolutely worth it.
The Dulling
A Cosmic Horror Story with Bosses, Dimensions, Magic, and more!