Minecraft Java 1.21 Mods
Browse 12,331 free mods for Minecraft Java 1.21 — popular picks include War of worlds, SimpleDrops, WerseMobCounter.
Updated daily
War of worlds
Adds multiple anomalies and new dimensions featuring unique structures and terrains all designed to maintain a tense scary atmosphere
SimpleDrops
Custom mob drops plugin with item IDs, multiple loot tables, and command rewards for Minecraft serve
WerseMobCounter
Counts mobs in WorldGuard regions, exposes PAPI placeholders + conditional Actions.
Eternal Shard: The End
Eternal Shard: The End is an exploration-focused expansion for Minecraft’s End dimension.
New Look for Vampire Mobs
Resourcepack for Vampirism which changes the textures of vampire mobs to make them look nicer.
0429 Mismagius Hacked Changes
Part of the Cobblemon Hacked Changes series, I am now separating my one mod into separate Datapacks. This datapack targets mismagius from generation four.
0466 Electivire Hacked Changes
Part of the Cobblemon Hacked Changes series, I am now separating my one mod into separate Datapacks. This datapack targets electivire from generation four.
Boss Cannon
The Boss Cannon Inspired By WMC
ME Spawner
An AE2 addon that adds an ME-powered mob spawner.
Calamity Bosses
20 NEW bosses that will shift the power changes in your world, adding custom item rewards and custom blessings to ease your fare through this treacherous world.
MobAnxiety
A simple, spooky datapack designed for minecraft 1.21.1 that makes some animals and villagers watch you...
ViaLater
ViaLater, alligator! This pack uses EMF & ETF to visually backport newer mobs and entity models and textures to older client versions. It's built specifically to key off the ViaBackwards mod, using its protocol translation to pull in the updated assets.
Cold hunger bars
This texture pack retextures the hunger bar to match cold mobs. 0 AI was used in the creative process/technical stuff. Should work for 1.21.1+!
Squid Improvements
Squids and Glow Squids will give effects when you try to attack them! Survival friendly addition to vanilla worlds
Sentries & Sentinel
Later-game enemy for servers that have no more common dangerous enemies.
Enhanced Drops
Manage mob drops worldwide, set items, percentage, mechanics and much more.
Undead Unleashed - Spawn Weight Config
A simple ready to edit datapack template to modify spawn weights and counts for Undead Unleashed mobs.
MobArmy ⚔ Recruit ANY Mob | Smart Army AI, XP Upgrades, Lifesteal Hearts [Paper 1.21+]
Build your monster army: right-click recruiting, smart combat AI, per-mob skills, lifesteal hearts
Addict-O-Statue
Simple Static Mob Statues & Custom Voxel Collectibles for your Server!
MobCollector
Automated mob farming made simple
PetOwnerAttacker
When a pet attacks, the owner becomes the attacker.
Anything Glows
Make any item glow using Glowstone Dust, Glow Ink Sacs, or Glow Berries.
nikothana's Cherry Explosion
Changes the explosion particles to be cherry petals.
0433 Chingling Hacked Changes
Part of the Cobblemon Hacked Changes series, I am now separating my one mod into separate Datapacks. This datapack targets chingling from generation four.
0467 Magmortar Hacked Changes
Part of the Cobblemon Hacked Changes series, I am now separating my one mod into separate Datapacks. This datapack targets magmortar from generation four.
0469 Yanmega Hacked Changes
Part of the Cobblemon Hacked Changes series, I am now separating my one mod into separate Datapacks. This datapack targets porygon-z from generation four.
Soulsplit Origin
An origin spliced yet feeling wholeheartedly.
Evil Within
Evil Within — A dark mob overhaul that gives Minecraft’s creatures a sinister new look. Featuring blood-red eyes, corrupted details, and an unsettling atmosphere that makes even familiar mobs feel dangerous. Dare to face what lurks within?
Compostments
Grow crops by crouching near them, auto-replant with an enchantment, and feed animals by composting.
BlzdEchoHush
Adds the Echo Hush, a craftable vanilla-friendly item that lets players toggle the silence of any living mob.
Create: Bionics - Faster Oxhauler
A simple datapack for Create: Bionics that increases the Oxhauler's movement speed by 2×, making transportation much faster and more enjoyable. The speed multiplier can also be easily customized to any value you prefer.
Nemesis: The Mob That Kills You Becomes Your Rival [1.20.6-1.21.x]
The mob that kills you becomes a named rival that hunts you down and levels up.
GhostRun | Competitive Ghost Parkour [BETA]
parkour, ghost, replay, race, competitive, minigame, leaderboard, hologram, lobby, ProtocolLib

Deadly Disasters
Adds naturally occurring disasters to your server, ranging from tornadoes and earthquakes to acid rain and severe storms, and many more!
Altar Mod
A unique altar mod with a custom economic system that allows you to duplicate items by sacrificing resources.
Return Piglin Farms
Plugin that makes some tweaks to mimic 1.21.4 behavior of Zombie Piglins