Minecraft Java 1.21 Mods
Browse 3,633 free mods for Minecraft Java 1.21 — popular picks include Trick or Treat Events, Camille's Sniffer Loot Expansion, WorldPedia.
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Trick or Treat Events
A pack that adds NPCs that can either give you a treat or a nasty trick...
Camille's Sniffer Loot Expansion
This datapack expands the loot that sniffers can uncover while digging. No overpowered items, no random out-of-place items, only logical, balanced vanilla friendly loot.
WorldPedia
Adds a clean and simple health indicator above mobs and players.
All looking at you
With this data pack, if you appear within a 15-block radius, they will immediately turn their full attention to you and start looking in your direction.
SafeAFK
Monitor your Minecraft health remotely with a companion mobile app.
Cavernous Unearthed
This mod adds vanilla style cave biomes and features.
Kaizen Torches
Upgrade your torches with iron , gold , diamond to expand the prevent mob spawn radius !
The Sneaky Creeper
Adds cloaking Creepers that divide into 2 mini sneaky creepers upon death. Be Scared.
Hapyy ghast is also a balloon
Happy Ghast is also a balloon is a fun and lightweight Minecraft datapack that adds a new advancement: just observe a Ghast or a "happy" Ghast through a spyglass to earn it!
Reforged Modifiers
Reforged Modifiers adds equipment modifiers based on Terraria's modifiers.
Silver & Withers
A Minecraft mod that adds silver, its items, couple new mobs, structures and potions.
Shriek Control
A Minecraft mod that gives players full control over which mobs spawn from a Sculk Shrieker. Customize encounters, fine-tune the danger lurking in the Deep Dark.
No Glow Ink Sacs
Removes glow ink sacs and replaces their uses with glowstone dust
TheHandOKill
Small mod adds the iconic "space erasure" sound that plays every time you kill a mob with a single hit
AvAI
This mod replaces the conventional Minecraft objective system with a basic decision tree.
Bucket of Ghastling
Adds Bucket of Ghastling
CreeperBoom
Control the behavior of Creepers after exploding
Summon-Shaped Recipes
Craft the spawn eggs of the iron golem, snow golem, copper golem, and wither.

The World Of Bob
A silly mod themed around a new mod named bob, that adds bob versions of Minecraft mobs and even a bob dimension!
Leader Zombies Are Larger
Makes Leader zombies larger and their sounds deeper to differentiate them more explicitly

Difficulty by Distance
Adds the option to scale difficulty infinitely the further out you travel, alongside applying scaling to more mechanics and tools for pack creators.
Telum Solaris - At the Forest's Edge
Telum Solaris aims to add new weapons, armor and boss to minecraft for every stage of minecraft's progression. It is currently my first and only project!
SpiderClimbingDisabler
A Minecraft Bukkit Plugin for 1.21 to prevent spider/cavespider from climbing the wall.
Weird_Update
This mod is Intense and weird...
ExplodingEntities
A mod which makes entites explode when damage is done.
Impover Mod
Improve Mood is a mod that lets you manipulate the world. Toggle mobs on and off. Manage the world to the fullest!
OrjusBlockStats
OrjusBlockStats is a powerful and lightweight flexible block tracking plugin designed for survival and competitive Minecraft servers.
BlueArchive Types
a plugin brings the type table in Blue Archive into minecraft combat
DreamGuard
The extension allows you to select areas using a special sword or with /dreamguard pos1 /dreamguard pos2, create an area using /dreamguard areaname, add creatures to that area, and use /dg flag areaname to add hunger, reduce health, break construction site
BulsciCraft
Enjoy this brand new mod that adds New Dimensions, Mobs, Items, Blocks, Unusual things and even a bossfight...
mob balls
This mod adds balls that can catch mobs with different tiers. More tier = More better (I know how grammar works! It just rhymes better)
Swoosh Craft
A movement enhancement plugin featuring momentum mechanics, directional dashes, and grappling mobility.
Level-Craft
an RPG style system, Exp, Levels, Custom Items, Mob levels, Crafting Requirements and skills.
Mob Nudge
This Mod adds a simple way to move mobs through the use of commands by pixels.
NetheriteSilkSpawners
A Minecraft Paper 1.21.1 plugin that allows players to collect Spawners while preserving the original mob type.
Revenge of the DOGS!
Kill dog = death. Have to protect mans best friend...