Minecraft Java 1.21 Mods
Browse 336 free mods for Minecraft Java 1.21 — popular picks include Eternal Nights, Create: Portal Integration, Carpet Shadow Legacy.
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Eternal Nights
Wanna challenge yourself or make scary modpack? Now you can. This mod removes day from minecraft. Only nights from now on. Inspired by don't starves lights out mode
Create: Portal Integration
Add portal support to cart contraption, coupled cart, and compatibility with other portal mods.
Carpet Shadow Legacy
Carpet Addon for Bringing Back Item Shadowing in Modern Minecraft Versions.
Cartoon PVP Sounds
Turn PvP into a Tom and Jerry episode!
Meow Meow (horror)(scary)
Meow Meow is a horror mod featuring cats and cheese
Cart PVP Bark Fart
This pack adds custom sounds for the bow/crossbow shooting, and explosion sounds
Car From Garn47
Our Friend Car is now on minecraft... he will follow you. he will help in your adventure using his stuning moral support...
Create: Cats Don't Care (CCDC)
Lets cats find cozy spots to sit and sleep around your Create factories.
The Archivist
A fourth-wall-breaking psychological horror mod that uses your real-life PC info to scare you.
Bonzi Buddy
Your best friend on the Internet is now in Minecraft! Made for ModFest Carnival!
super_scary.jar
A super serious and super scary horror mod!
The scary stalker
this horror mod is scary it has a long nose and i will add more stuff to it to
Clown Raid
Adds circus parades! Made for Modfest: Carnival
Mode 13h: MS-DOSify!
An Iris shader pack for Minecraft that recreates the look of late-90s MS-DOS 3D graphics with deliberate retro accuracy.
PsychoTerror
A psychological horror system that reacts to each player’s behavior, creating unique personal scares and world distortions.

Pocket Mobs
Battle with mobs using Pokémon Showdown. Made for ModFest: Carnival.
Lunacy Shaders
See the world through the eyes of a lunatic.
Sinister Circus
A mod that adds items, equipment and food themed around carnivals! (with an evil twist) Made for Modfest - Carnival
Not So Scary Spiders
Dont like spiders? well that might just be you... but if so this pack should make them a bit less scary and a bit more easy on the eyes

PickMeUp
Pick Up Entities and carry them somewhere
Boo, scared? Don't be afraid! (Бу, испугался? Не бойся!)
This resource pack replaces the texture and sounds of the totem of undying
Player Hitbox Fix
Fixes player hitbox collision issues allowing cobwebs, rails, and minecarts to be placed through players without misclicks or placement blocking
Lost In A Story
A Mystcraft like adventure in a story world, what will you find? MODFEST: CARNIVAL ENTRY
All Of The Alternative Reality Modpack - AOTARM MC
Do not be scary, they are hunting you everywhere, no matter where you are, they are there.

Geodrum
Geodrum is Scary! Geodrum is Nightmare!
Must have been the Wind.
A mod adding a bunch of scary mobs into the game.
Evil Larry Deep Dark BGM
Deep Dark biome music is replaced with the music from various Scariest Stories shorts.
Shopping Cart Horse
A simple pack that replaces horses with shopping carts
skeep's Cardboard Mod
Adds tons of cardboard stuff, ranging from cardboard tools to cursed cardboard phones and lots of other goodies!
DOShader
this Minecraft shader simulates the 8bit effect from old DOS games
Create: Cardboard Tools
A mod / pack that adds cardboard tools to create mod!
From Animation To Minecraft
This mod contains the weapons and armors from different things like animation about minecraft like the Animation Life and the Annoying Villagers. And about other things that is interesting to be in minecraft like weapons and armors from anime and cartoons.
cot golden carrot
Replaces the texture of golden carrots with :cot: emoji
Unforgotten Memories
it just adds scary monsters that hunt you down at night
It Was My Mistake
Adds a scary entity that stalks and becomes stronger as time passes, also includes a jump scare. (Horror)
Mid Journey
Kinda mid. A satire AI mod for ModFest: Carnival