Minecraft Java 1.21 Mods
Browse 1,415 free mods for Minecraft Java 1.21 — popular picks include ErrorMons, EntitySize, Femboy Things.
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ErrorMons
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EntitySize
Change the size of any living entity with a transition!
Femboy Things
A rather simple mccreator Mod that adds a bit of femboy things to minecraft
KamenRiderBossYOUandME
Henshin! Step into this heated conflict. In “The Final Boss, You and Me”, it's like the fateful duel of Kamen Riders. The shining belt is the symbol of glory. Amid the intertwining of light and shadow, only the strongest can break through the darkness
Explosive Breeding
Animals explode when bred
Happy Boy :)
This horror mod adds a lot of new strange entities and biomes that will be extremely aggressive towards you! I hope you will love this mod!
Laser's Foolmon Pack [Cobblemon]
Adds a few goofy Fakemons for April Fool's Day!
Compatible Healthbars
Yet another TH pack, pre-alpha but atleast it's compatible with any mob texture while also being easier to use to make an addon and having a few advantages over regular TH.

Mob Battle Music: DELTARUNE Edition
This is a resource pack that adds multiple custom tracks to the mod Mob Battle Music from DELTARUNE.
Dweller Nautilus (Horror)
This mod adds a new monster to the ocean. Nautilus Dweller Cursed Drowned Cursed Nautilus Shell and signs
Cursed Relics Dungeons
Cursed Relic Dungeons adds dangerous dungeons filled with secrets, traps, and hidden relic weapons with unique abilities. Explore hidden structures, discover powerful rewards, and survive deadly encounters.
Horrorland 2
A modpack only for the bravest, now updated to the latest version. With more terrifying mods and tons of evil creatures to discover!
Create: Cats Don't Care (CCDC)
Lets cats find cozy spots to sit and sleep around your Create factories.

Holdable Frogs
Allows frogs to be handheld, after which the frog's tongue is usable to pull faraway entities closer, as well as to obtain froglights.
invalid_mod.jar
ARG-like mod.
The Night Watcher - Horror
The night watcher stalks and strikes at night, dont let your sanity drop too low.
No No Wait Villager Scream
Villagers scream "No no wait" meme when hurt
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.
Ruined MCLive Early
A set of goofy and wild features based on fan comments to ruin Minecraft Live
Monster Girl Totem.zip
Monster Girl Totem.zip Animated Monster Girl Totem of Undying
Verity Plus
Verity Plus Verity, a small, intelligent, yellow sphere who can do many things for you, but don't get to mean, he will get revenge.
super_scary.jar
A super serious and super scary horror mod!
Dungeons Overhaul
Upgrades the vanilla dungeons to a more adventurous experience
67 Entity
67 Entity is a horror mod for Minecraft that adds a mysterious creature inspired by the “67” meme. The entity will stalk the player, appear in unexpected places, and create a constant feeling of fear and tension throughout the world.
Scream & Disappear Death Sounds
Plays "scream and disappear" meme sounds when a player dies
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
All Creepypasta in One
All mystical versions, and ARG in one mod.
PsychoTerror
A psychological horror system that reacts to each player’s behavior, creating unique personal scares and world distortions.
Cookies, Candy and Cakes
Add cookies, candy and cakes for Halloween and other holidays. Fun seasonal treats with optional effects and mob drops. Fully configurable for servers and singleplayer.
Player Husk
Did I just see another of myself?

Pocket Mobs
Battle with mobs using Pokémon Showdown. Made for ModFest: Carnival.
Random Bosses
The WASD Random Bosses Datapack turns naturally spawned mobs in the world into bosses. It was inspired by an old mod that is similar in function. Bosses spawn with random power levels, random sizes, and loot based on difficulty.
Home Lawn Security
A mod that aims to add Plants vs Zombies' versus mode to the game.
Absurd Death Messages
A mod with features designed to achieve ridiculous death messages suggested by Knarfy's Audience