Minecraft Java 1.21 Mods
Browse 617 free mods for Minecraft Java 1.21 — popular picks include Kappa's AntiCheat, Flatuence Update, Wither Loot.
Updated daily
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
Flatuence Update
Players and Mobs now have the ability to pass gas.
Wither Loot
Adds better custom loot dropped by the wither
Sizeable Creeper
Just a datapack that spawn creeper at different size
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
Herobrine Mode
Play as Herobrine and explore a cursed world
Illagers Attack Babies
Illagers now attack baby villagers. Because why not.
ForceField
Push pesky players, mobs, and even blocks away from yourself!
Infested Netherrack & End Stone
INFESTED Netherrack & End Stone to End and Nether Dimensions with Spawn Mob System (Endermite and Blaze) (infected)
HandsOfTheVoid.jar
Slow burn horror mod heavily inspired by the broken script that will make you feel like you're in an ARG
Shearing Sheeps Drop op loot
Shear a sheep → get insane end-game loot. Works on every version from 1.21 to 1.21.10. Adds custom loot table, and turns sheep into walking OP supply crates. Perfect for chaos survival or challenge world
Grave Robber
A classic take on the Gravestone Mod, adding a mini fight to retrieve your items.
Ben's Monster Energy Mod
All the Monster Energy you could ever want... and Beer too for some reason.
Herobrine Horror Project
The best Minecraft horror plugin for 1.21.4 Spigot that lets you troll your friends or create a YouTube video with scary ambience sounds and horror effects.
tame every mob
Tame every regular Minecraft mob, control their behavior, store them in Mob Pockets, and upgrade them with custom equipment.
not_alone.jar
This is a horror mod that adds entities to your world
NoMoreJumpscares
Removes the Elder Guardian curse effect when receiving mining fatigue
Configurable Difficulty
A server-side Minecraft mod that adjusts entity attributes based on their biome, dimension, and depth
The Mystery
Survive chilling encounters with Herobrine, Entity 303, and Null. Balanced horror gameplay adds eerie tension without breaking vanilla mechanics.
Mini Mobs
Adds new mini variant of mobs that spawn naturally.
CustomDisasters
Custom Disasters is a Paper plugin that adds dynamic world events like Blood Moons, Zombie Apocalypses, and Nether Breaches, each transforming gameplay with unique mob behavior and atmospheric world effects.
Sanity System
A subtle psychological horror mod that adds a hidden sanity system, immersive hallucinations, and fear-based survival mechanics to Minecraft 1.21.4 Fabric.
BloodMarks
Adds blood effects to your swords and a unique Blood Instinct status, attracting hostile mobs from a distance. Cleanse your weapons in water or face the challenge head-on.

1.21.7 Backport (Lava Chicken Backport)
Port of the new 1.21.7 features to older versions
MobPVP // CANCELLED
MobPVP transforms your Minecraft survival experience by assigning levels to every living creature in the game. Based on these levels, mobs gain different abilities, attributes, and loot chances, creating a more challenging and rewarding combat system.
Eat Villagers
Wandering Trader & Villagers drops meat and you cat eat it - new Food
Bedrock Wither
Adds Bedrock Withers to Minecraft?
CreepyPasta Legends
Creepy Monsters awaken, Haunting players With Dark Legends and Fear.
WildLife
A recreation of the WildLife series by Grian!
Halloween Tweaks
Small and minor halloween-related tweaks to make your game spookier!
Can't Sleep
Some nights shows a message similar to "There are monsters nearby" and blocks sleep until the next day. Easily configurable.
Polluted Rain
Random things fall out of the sky!
HardER
Just pure Minecraft, but harder. Just like the old days. No new items. No new mobs. Just harder.
oSzoukaua's: XP is Bottles!
Mobs will now drop XP bottles that contain the exact amounts of XP the mob dropped!
Zombalypse
A zombie apocalypse plugin, it also adds "custom" zombies.
Spooky Scary Thunderstorms
Creepers may spawn as Lightning Targets now, and Thunderstorms can be conjured with Ominous Bottles!