Horror Mods for Minecraft Java
Browse 50 free Horror mods for Minecraft Java — popular picks include Arthropod Phobia Expansions + Horror Bosses / Arachnophobia, Arda's Sculks (Ancient City Portal / Deep Dark Dimension), The Day Of The Beast.
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Arthropod Phobia Expansions + Horror Bosses / Arachnophobia
ArPhEx horror mod - realistic, intricate, phobia-inducing entities and supernatural bosses
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.
The Day Of The Beast
Introduces The Devil, a new boss fight in the game.
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
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.
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.
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.
Titans
This mod is made for those who love adventures. Adds new ore, materials, items, structures, and a boss
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.
Wither Ascension
Makes the Wither boss harder with phases and abilities
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

Warden bossfight
Turns a player into a boss with warden and sculk-based abilities
Blockhead Bosses
(WIP) A datapack that features difficult bosses and custom weapons.
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!
The Dulling
A Cosmic Horror Story with Bosses, Dimensions, Magic, and more!
Ominous Offerings
An Ominous Mod featuring pillagers. Venture into deep dungeons and craft soul weaponry! And even a boss to find and kill!
koper_mod
A chaotic Minecraft mod with unique bosses, broken armor sets, and a corrupted dimension a little unbalanced but fun as hell.

Weapons Of Legends
Weapons Of Legends Adds Difficult Dungeons, Insane Boss fights, and Insane Items.
Void king dimension
Adds an epic boss fight with the Void King and his minions, spreading corruption, and powerful weapons.
Homelantor
A Homelander boss addon for TerminatorStar featuring advanced AI, hunting behavior, and powerful combat abilities.
the weirdest bosses ever
This an extremely weird mod which adds weird stuff and even a weird dimension you need 12 beacons to go there lol
Grandia Dungeons
A dark fantasy roguelike dungeon adventure with classes, bosses, cursed loot, magic, traders and procedural floors.
Crowned Herobrine [LEGACY]
Adds a new boss called Crowned Herobrine that is a formidable opponent. He drops a useful crown ;)
Mob Heart: Killing Mobs Give you 1 permanent Heart
Get permanent extra hearts by killing mobs! Every mob type gives +1 heart ONCE, works across deaths, fully automatic. Includes passive, neutral, hostile, and bosses!
Holger Soup and Sorcery
This Mod adds many soup themed items to the game. Also a flying soup boiler that attacks you and a Soup Biome and Dimension. Also this mod adds the substance Holrosium and Holgarium, Crows and a Bossfight with Holger.
NexusMobs
NexusMobs is a comprehensive RPG plugin that transforms your Minecraft server by introducing over 20 unique bosses
Cognitio
A chaotic world with strong monsters and bosses and cool artifacts with powerful abilities.
random things/stuff
random things i added with blockbench for models and mcreator this adds new ore mobs bosses blocks tools items and much much more
Badger Colonies
A dangerous RPG world full of bosses and creatures. It's time for YOU to gather your group and challange the dangers of this land. Pick a origin, your weapon of choice and charge forth!
ADKM
Defeat a powerful, giant boss roaming your world to claim his legendary Scythe with +16 Attack Damage! A high-risk, high-reward challenge. (Requires GeckoLib)
Sculk Wrath
Sculk Wrath is a complete Warden boss overhaul datapack that transforms the Warden into a 4-phase boss fight with custom attacks, boss bar, music, configurable drops, and dramatic animations.
darkabyss
hadows fall, the abyss awakens. 5 terrifying new mobs + the Abyss Lord boss fight. Craft the Dark Abyss armor set for Night Vision, Resistance, Speed & Jump Boost. Dare to enter the darkness?
The Legend Returns
Herobrine has returned. Cursed structures, shadow clones, epic boss fight, and dark portals await. Survive the apocalypse.
Chariz's Mayhem
A Minecraft Mod That Aims To Add Fun Things Into Minecraft, Such As New Mobs, Bosses, Weapons, Tools, Armor etc. Created By The Maniac Himself, DarkChariz
From The Shadows Reborn Mod (1.20.1, 1.20) – Fight the Darkness
From The Shadows Reborn Mod adds new hostile mobs, bosses, weapons, and progression systems centered around shadow magic and cursed creatures. Features: Introduces shadow mobs that spawn in the overworld and special biomes. Adds boss encounters tied to progression and loot. New weapons and armor sets infused with shadow energy. Defeating bosses unlocks recipes and […]