Minecraft Java 1.21 Mods
Browse 607 free mods for Minecraft Java 1.21 — popular picks include Random Eventy, ToughCraft, Under The Seas.
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Random Eventy
When creating a new world you have a new button, there you can configure the randomness of your survival world!
ToughCraft
I'm trying to create a very complex datapack that will be based on vanilla Minecraft and make the game impossibly difficult.
Under The Seas
Discontiued For Certain Amount Of Time A new gameplay to minecraft by exploring the darkness of the sea
Blood Anarchy: Call Of The Chaos
A PvE mod (not horror one) that adds Blood Anarchy - a hostile civilization controlled by a malicious force that emerged on one of abandoned servers...
BagelVulture's First Mod
a bunch of random additions that aren't quite vanilla+
1 Tap Kill
Give selected players the ability to instantly kill allowed mobs or players with a normal melee hit. (Troll plugin)
Echo: a new legend?
Get ready to be spooked, this is the start of a series called Legends: Retold? Where it retells famous creepypasta characters and makes new ones!
Jeb_ For Wolves And Pigs
Let you name wolves and pigs "jeb_"
NotQuiteDead
Become a zombie, husk, and drowned in survival!
WRaids
A plugin that should break raid farms
More Collectables by Memontanik
This Project Adds More Stuff to Collect, Craft, Use and Break! It could be a fun experience with this Project!
A-90
Datapack thats add A-90 to your world
F*** baby zombies
Makes baby zombies exactly 1.001 block tall, severely nerfing them by preventing them from going through 1 block gaps.
twinkle popo mod
it adds twinkle popo realistic pikachu and realistic hellokity

Lifeless World
Adds a new gamerule to the game to prevent all non-essential entities from spawning. Can you beat the game without entities?
Creeper Radar
Creeper Radar is a simple client-side Fabric mod for Minecraft 1.21.11 that detects creepers within a 30-block radius around the player. It displays the number of nearby creepers and the distance to the closest one in the action bar.
Azure Abyss
Beneath the Abyss lies more than just nothingness. Explore a story-driven dimension with new gear, creatures, and secrets.
Owl Jump Rope
Adds a jumping owl with a rope that spawns in villages and explodes when killed.

Mob Death Punishment
This is a mod where if you kill a mob, you get a random negative effect for punishment!
Nightshift
Challenge oriented, randomly generated nocturnal events.
Dominus
Dominus is a Paper 1.21+ plugin that lets trusted operators secretly control a Minecraft server — shaping the world with powerful tools or walking among players disguised as any mob — while remaining completely undetectable.
Zombies attack Pink Sheep
Like in A Minecraft Movie, zombies will attack pink sheep
Double It And Give It To The Next Person
Oh no, a creeper! Double it and give it to the next person.
DepthsOfDepravity
A Ancient Species Lurks In You're World Watching You
Levelplate
Adds plates above mobs indicating their level
Guinermod
Survive a world invaded by the Guiners, new daylight enemies that spawn in large groups, and much more.

Center of the World
Makes all mobs know your location at all times
Common-Fish
Tropical fish Advancements - Fish goes weeeeeeeeeeeee
Nerfed Elder Guardian
Small mod that lowers elder guardians radius for giving a player mining fatigue from 50 to 10 blocks
Concept
Adds various chaotic features that were suggested to me!
MySilkSpawners
Take your spawners wherever you want. Enchant your pickaxe, mine any spawner without destroying it, and rebuild it somewhere else, with cost and drop chance fully tailored to your needs.
Shizophrenia
Makes you question everything.
Transmitter Pearl
Have you ever wanted the ability to swap the position of 2 mobs with one simple device?
Pesky Vexes
Datapack that makes vexes not die after 5 min when named preserve
TougherThanLlamas
The modern reincarnation of the hardest mod ever created for Minecraft
Summon-Shaped Recipes
Craft the spawn eggs of the iron golem, snow golem, copper golem, and wither.