Minecraft Java 1.21 Mods
Browse 2,270 free mods for Minecraft Java 1.21 — popular picks include Daaamit Nic, Curses Revamped Additional, More Reasonable Recipes.
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Daaamit Nic
Simple data pack for a world height adjustment!
Curses Revamped Additional
Addon for Curses Revamped that adds new, hidden, and dangerous curses with research, fake enchantments, cursed books, and Ominous Offering.
More Reasonable Recipes
More Reasonable Recipes in Minecraft
BrainrotBeGone
Stops "Lava Chicken" disk from assaulting your ears.
Mount Amulet
A simple item that can store your mount, but only one!. Reusable and cheap!
Trollerzz
Plugin that lets you troll players with commands.

Awesome Mode
An awful troll datapack with things you wouldn't expect
Breaking is Bad
Adds nothing, strips you of the ability to break blocks, that's it.

Copper Required to Mine Iron
adds use for copper tools by making it so that iron now needs copper to be mined and stone will cause it to not drop.
Only Forward
A simple mod that removes your ability to walk backwards or sideways.
Aggressive Axolotls
This data pack make axolotls attack every mob including the player.
NoArrowsStuck
No more arrows stuck on players

Touhou Little Maid: Lily
An addon for Touhou Little Maid that adds a maid-to-maid affection and yuri romance system.
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.
Random Eventy
When creating a new world you have a new button, there you can configure the randomness of your survival world!
Wednesday Frogs
Mimics Wednesday Frogs from the craft mine update.
Curses in Enchantment Table
Simple datapack to make curses appear in the enchantment table.
YAHHS
Yep another half-heart system
Potion of Combat Log
Combat logging is now a feature, so it's not cheating!
sukuna abilities
adds sukuna's abilities to the game
GlobalHealth
All players share one global health bar. Damage one, damage all. Heal one, heal all. If one player dies, everyone dies. Perfect for challenges, hardcore modes, and teamwork-focused gameplay as well as creating content and events.
CAT BOW
Exploding cats on arrows! Configurable particles, sounds, and more.
Uncraftable Items Recipes
Craft All the Uncraftable ITEMSS!!!
NoZombieVillagerCure
Prevents Zombie Villagers from being cured
SoulCommand
SoulCommand is a Minecraft 1.21.4 Bukkit plugin that lets hostile mobs temporarily possess players, causing them to lose control and exhibit eerie behaviors before breaking free.
Beep's Mean Crystalline Resource Machine (BMCRM)
Yet another take on passive resource generation. Forge crystals and resonate them to obtain their spoils.
Creepy Colorful
Creepers are now a colorful bunch thanks to Creepy Colorful!

Mine and Destroy Recipes
More recipes for items that you cant craft
The Abyss Follows You
Your steps destroy the world! Every block you walk on is erased from the sky down to bedrock. Can you survive the abyss following you?
CraftLock
A minigame type of mod that locks every crafting recipe after it has been made once
Pause Menu Pranking
Allows you to randomize the Give Feedback and Report Bugs buttons to prank your friends when sharing your screen.
Being Alone (BE)
This mod makes you feel alone... because you are...
Grow up!
A datapack that makes you start smaller so you can get taller over time, just like in real life!
Burnt Sun
The Sun is a Extra Deadly Laser.
Herobrine's Sword
Herobrine's Sword from Animation Life
Bastion Reprieve
More piglins, less brutes. A compromise between 1.16.1 and modern Minecraft.