Minecraft Java 1.21 Mods
Browse 254 free mods for Minecraft Java 1.21 — popular picks include invalid_mod.jar, Nature+, Cave World Remastered. (Froglight Edition).
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invalid_mod.jar
ARG-like mod.
Nature+
A mod that adds improvements to nature! This mod includes Oil, Trash, Polluted Water, Trash Dumps, and even Wallmart!
Cave World Remastered. (Froglight Edition)
Brings back the Old Cave World type but Better and More Improved.
Dungeons Overhaul
Upgrades the vanilla dungeons to a more adventurous experience
Clown Raid
Adds circus parades! Made for Modfest: Carnival
The Obsessed Creature
This modpack contains The Obsessed, and a couple other mods put in to bring the best immersion to your world and your stalker friend Lenny. Also adds more decoration/structure and food options
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
HappyDays
Explore the horrors that have entered the your system, and try to survive with them hunting you down like an animal.
Extractrooms
Backrooms-themed looter mod. Clip inside, loot randomly generated rooms, and find the exit before the timer runs out.
Backrooms Through The Walls
Adds level 0, level 1, and the bacteria entity.
FNAF Dreams and Nightmares (Work Game)
Mod will recreate the creepy atmosphere of FNaF 4

Geodrum
Geodrum is Scary! Geodrum is Nightmare!
Jeck230NOTREALWORLD
AI-generated horror mod that adds the mysterious entity Jeck230, disturbing sounds, and a strange “not real world” atmosphere.
The Broken Script: Reprogrammed
Here I am. A mod that adds new mobs and dimensions to add on to The Broken Script.
Ravents
🗸 Ravents for custom mechanics. Design multi-wave raids with complex triggers, create unique mobs with modified stats, gear, and mounted towers. Spawn control: Replace vanilla mobs or add custom copies.
Endertides
Enhance the End the way Mojang did in Dungeons, adding a new look to the End, along with more wildlife, items and more for you to uncover.

Enter the Bungeon
Completely rewrites Minecraft into a Roguelike Dungeon Crawler
MobMons
Do you want to use Minecraft mobs as Pokemon? Now you can!!! :D
More Villages Datapack
Adds more villages to the game.
Dimension emptiness
Prepare yourself for a harrowing journey with the "Dimensions void" data pack! This pack introduces a nightmarish dimension known as the Void, a realm where no soul remains after the inevitable demise of all living things. Here, darkness reigns supreme, an
eyes.everywhere
A small horror mod that stalks you with more than two eyes. (Not a dweller)
Soulified
In the world of Dark, mercy is a myth, and every shadow hides death. Git gud, or die trying
The broken script: Void Paradox
Addon for the broken script that adds several entities and a couple of events to your game
Voidsong
Something strange has happened. The shadows are opening for those above to witness. The world is turning inside out.
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
The Friends Mod
Introducing the "Friends" mod, adding a multitude of unique pals to your world! Adds: Mimic Plant, Mimics -Mimics can copy your skin, name, and voice...
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
The Juan Mod
The biggest update: Maple Wood, Lavender, and Juan.
Infested Netherrack & End Stone
INFESTED Netherrack & End Stone to End and Nether Dimensions with Spawn Mob System (Endermite and Blaze) (infected)
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.
The Broken Script Extension
This mod is an extension to the "the broken script" mod featuring 12 new Entities, 2 Items, a new block and a new dimension.
The Backrooms: Found Footage
A realistic, multiplayer-compatible, mind bending backrooms mod with infinite replayability.
Mobs Revenge
The mod adds new mobs, items, and tools with special properties.
An Unfinished Mod
A horror mod meant to provoke a feeling of unease in the player throughout their playthrough.
CreepyPasta Legends
Creepy Monsters awaken, Haunting players With Dark Legends and Fear.
Ben's Monster Energy Mod
All the Monster Energy you could ever want... and Beer too for some reason.