Minecraft Java 1.21 Mods
Browse 1,415 free mods for Minecraft Java 1.21 — popular picks include A Minecraft Movie Mobs, MobMisquotes, The Witch (Intense Horror).
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A Minecraft Movie Mobs
Changes the appearance of some mobs to look like they're form the movie
MobMisquotes
Mobs occasionally speak incorrect famous quotes in chat when they die, attributing them to completely wrong historical figures.
The Witch (Intense Horror)
The red eyed Witch lurks in the shadows, if you look at or get too close to her she strikes and drags you into complete darkness.
kill.jar
A horror mod that is based off The Broken Script
Cursed Spawners
Makes spawners far more dangerous than they need to be.
ZombieApocalypseSSS
ZombieApocalypseSSS is a comprehensive Minecraft plugin that transforms your server into a thrilling zombie survival apocalypse. Featuring advanced zombie AI, evolving variants, player infection mechanics, psychological horror elements, and dynamic events
Create: Horse DECIMATION
A joke Create Addon that lets you (half-ethically) process Horses into horse related stuff!
Haunted Encounters
Spooky Ghosts from the Pokemon Tower invade your world, bringing a whole new otherwordly challenge!
Classic Combined
This mod creates a Classic Minecraft/Modern Minecraft hybrid experience. Recreates modern features in a Classic Minecraft/Alpha Minecraft style. Fully Survival compatible
Villagers Drop Eggs
This datapack makes villagers and zombie villagers drop spawn eggs. It's great for transporting those mobs.
2.0 Rediscovered
A mod that implements the features of Minecraft 2.0, an April Fools joke released by Mojang on 2013
Extractrooms
Backrooms-themed looter mod. Clip inside, loot randomly generated rooms, and find the exit before the timer runs out.
HappyDays
Explore the horrors that have entered the your system, and try to survive with them hunting you down like an animal.
Creeper Deactivator
Do you hate creepers? Just deactivate them!
Death Sounds
the Mod that plays a sound on death of a player.
Horrorgames
Horrorgames – A spooky Minecraft modpack with mystic creatures, eerie events, and performance optimization for smooth, terrifying gameplay.
Shadow of the Soul
Shadow of the Soul: A dynamic psychological horror mod. Features a Fear Level system that reacts to darkness, depths, and injuries. Includes adaptive AI that stalks you, auditory hallucinations, and environmental sabotage. Light is your only safety.
Herobrine Addon
adds Herobrine and his signs

PickMeUp
Pick Up Entities and carry them somewhere
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
Chain Reaction Creepers
This mod makes creepers explode when they take damage from another explosion.
Backrooms Through The Walls
Adds level 0, level 1, and the bacteria entity.
The Lost Server - The Broken Script
A challenging horror modpack that slowly tears apart your world and corrupt the moon as dangerous creatures watch your every move watching and waiting to corrupt your world. [LORE BASED MODPACK]
Dirt Conduit
Removes the Prismarine Block restriction from conduits
Epic The Mod
A Minecraft Mod based on Epic: The Musical by Jorge Rivera-Herrans
Random+Multiplied Items
Every block you mine, or mob you kill drops a random item which is also randomly multiplied from 1 to 1024 of it
Minecraft But a Mob Spawns Every 10 Seconds
Minecraft, but a random mob will spawn on top of you every 10 seconds, good luck.
FNAF Dreams and Nightmares (Work Game)
Mod will recreate the creepy atmosphere of FNaF 4
Claustrophobia
Claustrophobia is a horror mod focused more on ambience over outright killing the player. The are plans for future additions and greater customization.

Geodrum
Geodrum is Scary! Geodrum is Nightmare!
Must have been the Wind.
A mod adding a bunch of scary mobs into the game.
Mob Mounter
Ride any mob using just a saddle!
Tails&Trails
It's for furry community, adds ears & tails for many animals. Using CIT features.
Finetunned Weaponry
This mod offers ALOT of new Items with unique effects
Craft-able Spawners
This mod makes spawners craftable using 8 chains.
Customizable Dragon AI
Useful Datapack to customize the Ender Dragon's AI