Horror Mods for Minecraft Java
Browse 4,113 free Horror mods for Minecraft Java — popular picks include Cobblemon [April Fool's], Black Virus Strain (黑色毒株), Simple Gravity Changer.
Step by step: How to install Minecraft Java mods & modpacks
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Cobblemon [April Fool's]
Cobblemon's Official April Fool's Datapack Addon.

Black Virus Strain (黑色毒株)
A kind of horror virus which attacks people. Now, here they come...
Simple Gravity Changer
This datapack adds a function to change the gravity of the world.
FoodDiet
Say no to eating one food.
No Generation -Y
Removes the generation of -Y in overworld. If there is a cave or lake at Y=0, then the air or liquid will NOT be replaced
stupid baby mod
!! LOUD NOISES !! a mod that adds a bunch of different baby mobs, items, blocks, weapons.
Donations
Adds donation events to Minecraft
XP 2 items
trade your xp to get randomly selected items
reMilked
Unofficial continuation of A Social Mod based around Bonding with Others!
Death Rewind
Death Rewind lets you rewind to a few minutes earlier right from the death screen. It creates automatic checkpoints during gameplay, restores quickly after death, and helps you get back into the world with minimal downtime.
Ben 10 Dynamite Datapack!
Have you ever dreamed of getting a space device that would transform you into a scary alien? Then this data pack is for you.
Minecraft but you're a fish
Now the player can only stay in the water.
Random Sizes
Every 60s Your Size will randomly change
Blood moon cursed Terror
a blood moon in your minecraft server FOR HORROR and more !
FullXaos_RPG
⚔️ RPG skills & dungeons 🌋 Portal dungeon RPG ⚡ Optimized RPG plugin 🏰 MCMMO-style RPG 🌀 Skills & portals RPG

oSzoukaua's: Burn you!
Makes more hostile mobs burn in the day light!
Milking Players
A customizable mod that lets you milk players adding related achievements
owocraft
Haptic vest support for Minecraft
Races (Fantasy Races)
Races/Origins Datapack by Evilonesw
Leash Tie Villagers (LTV)
Allows you to use the lead to tie up villagers, both adults and babies. Optimized to the max
sibliths rideable phantoms
Use two enderpearls and a clock to summon a giant rideable phantom!
HBM's Nuclear Tech Mod: Final Edition
A standalone fork of HBM's Nuclear Tech Mod overhauling radiation, reactors, and endgame progression with realistic mechanics and new content.
Ore Canes
Mod adds 15 variants of vanilla sugar cane. Farm (almost) everything from coal to amethyst anywhere, anytime.
Random Junk
A mod filled to the brim with random meme features
Illicit Blocks
Adds in missing block items for blocks, and block states for said blocks.
Primitive Flaming
Primitive Flaming lets you shoot flaming arrows by holding a bow or crossbow with flint and steel in your offhand.
Placement Delay
This Mod adds Power to Configure the Vanilla place and use delay
Comforts and Compasses Advancements Pack Add-on
An add-on to the BlazeandCaves Advancements Pack to add support for the Comforts mod, the Nature's compass mod, and the Explorer's compass mod.
Music Disc Madness
Every background music in Minecraft is now a music disc. Oops.

Goop Forge
Add Goop that spawns from entity interactions
golem
adds a block that keeps track of items for Copper Golems so they waste less time looking in boxes
The ShipPost Mod
The silliest and the goofiest features you count ever want in this game.
eXc Jackpot
Craftable gamble blocks with 140+ random outcomes — jackpot loot, mob ambushes, arenas, structures, fake-outs and a rare MEGA JACKPOT. Three block tiers, a Lucky Charm, Giant Cubes and world generation.
Random Effects
Every Chunk has a random effect signed to it
Mineable Unmineable
Allows you to mine End Portal Frames with no strings attached.
Shrieker can summon warden
Shrieker drop itself with its can_summon block state using silk touch. It can summon or not depend on which one you're mining.