Minecraft Java 1.21 Mods
Browse 2,237 free mods for Minecraft Java 1.21 — popular picks include Update Depression, Rising Toxicity, ExtraRecipes.
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Update Depression
Update suppression helper mod
Rising Toxicity
A toxic fog rises over 20 days, forcing you to live in the sky and explore below it using gas masks.
ExtraRecipes
Adds A Few Extra Crafting and Smelting Recipes "Vanilla"
NoCoordinates
Coordinates have been removed from the debugging menu, use the compass!
Relics of Ruin
A custom weapon system featuring boss-themed swords with unique abilities and mechanics.
The Archivist
A fourth-wall-breaking psychological horror mod that uses your real-life PC info to scare you.
Minecraft, But a Random Effect Happens Every 30 Seconds (Chaos)
A datapack inspired by the popular GTA5 chaos mod, but then in Minecraft.
Lower My Paths and Slabs!
Lowers blocks on top of anything (such as slabs). Configurable and toggleable!
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
Legacy Landscape
Legacy landscapes for your lugubrious level.
Gravity, Gourds, & You
An unconventional way to automate melons and pumpkins via dripstone.
Aznos's TrollUtils
TrollUtils is a plugin that lets you mess with your friends or server members through a variety of options. From scrambling inventories to fake creeper hisses to imprisioning players, perfect for adding a bit of fun to your server
Simple Meteorites
Fireballs will rain

End Crystal Chain Reaction
A mod that makes End Crystals explode when affected by other explosions. Without this mod, they simply vanish.

Gravel to Flint
A mod that adds a lossy way of getting flint.
Waguri Totem (Fragant Flowers of Dignity)
Now you can use Waguri as your own totem
Floaty Purpur (Sable Addon)
Changes purpur to be floaty like endstone. (Sable Addon)
super_scary.jar
A super serious and super scary horror mod!

Cursed Worlds
breaking world generation horrendously
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.
Clown Raid
Adds circus parades! Made for Modfest: Carnival
Image Previewer
Preview images in chatbar easily, efficiently. (No resourcepack needed)
DO NOT SAY THE NAME OF THIS BLOCK!
Removes ALL blocks in a chunk if you say its name!
PsychoTerror
A psychological horror system that reacts to each player’s behavior, creating unique personal scares and world distortions.
Cross show
Crosshair shows attack range and crit time
Create: Unclamped
Removes the various clamps on speed!
Player Husk
Did I just see another of myself?
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.
Economy Datapack
Simple Economy Datapack for Minecraft

MCAI
MCAI is a mod that serves as an intermediary between Minecraft and Character AI.
NoElytraForYou
Disables elytras
The Rift
Adds a Stealth dimension with multiple additives to after end game progression!
Global Emeralds
Unlocks Emerald Ore to spawn in all biomes.
Smooth Particles Reborn
Adds the functionality to spawn particles when you place a block (reborn)
Home Lawn Security
A mod that aims to add Plants vs Zombies' versus mode to the game.