Minecraft Java 1.21 Mods
Browse 45 free mods for Minecraft Java 1.21 — popular picks include Zombie Nightmare Expansions - Undead Horror Monsters, Gigeresque, Unoriginal.
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Zombie Nightmare Expansions - Undead Horror Monsters
Adds various creepy undead entities with unique mechanics and intricate designs
Gigeresque
Gigeresque is a horror-themed mod that offers players a dive into the horrific biomechanical world of the xenomorphs, and the mutated realms of the neomorphs, deacons, and goo mutants.

Unoriginal
A simple datapack that removes all base origins added by the Origins mod
Happy ghast and ghast origins
Adds happy ghast and normal ghast origin to the origins mod
Sanity: Renewed
Brings the sanity mechanic from Don't Starve into Minecraft
MT Inventory Weight
Weight mechanics! Manage your load, balance inventory, and enhance survival or RPG-like gameplay.
LevelZ (RPG Series) Compat
this mod brings parity with several rpg series mods and levelz
PlayerProgress
PlayerProgress is a Minecraft datapack that introduces a leveling system. Earn UP from activities like mining and combat to level up and gain new abilities and rewards.
Mebahel's Skeleton Revival
When death is no longer the end… their skulls flee to rise again. Summon, hunt, or suffer — in Mebahel’s Skeleton Revival, every skeleton gets a second chance.
KinglyBosses
KinglyBosses is a Minecraft plugin for managing custom bosses. It allows summoning powerful bosses, generating custom items, and enabling player spectating. It also offers features like boss lists, spawn zone management, and easy configuration reloading.

Enter the Bungeon
Completely rewrites Minecraft into a Roguelike Dungeon Crawler
The Elementals - RPG
Master the power of the elements in this immersive RPG mod!
Player Immortality Mod
Become immortal and never go below 1 HP half a heart of health, except from void damage.
ViveMonkeCraft
Gorilla Tag-style VR locomotion for QuestCraft and Vivecraft (Minecraft 1.21.4-26.2). Grab walls, floors, and ceilings with your VR controllers and physically swing through the world. Claude Code is Highly Used In this project
sibliths rideable phantoms
Use two enderpearls and a clock to summon a giant rideable phantom!
Shrieker can summon warden
Shrieker drop itself with its can_summon block state using silk touch. It can summon or not depend on which one you're mining.
FullXaos_RPG
⚔️ RPG skills & dungeons 🌋 Portal dungeon RPG ⚡ Optimized RPG plugin 🏰 MCMMO-style RPG 🌀 Skills & portals RPG
Artisan Tools
Leveling and modification of tools. Go through the whole game with one tool.
Vozduhan
Turn your voice into destructive wind. Speak into your microphone to blow away blocks, push mobs, create hurricanes, and summon tornadoes.
Shogun's Blast - Undead & TNT
Explore haunted Japanese villages, battle explosive Oni Warlords, and defeat the Council of Leaders in this immersive RPG structure and combat mod.
Player-Level Randomizer
Every time you level up, a random event is triggered, ranging from beneficial loot rains to spawning structures and deadly combat arenas. Taking damage will cost levels..

Instant beacon
Summons a fully powered beacon instantly when you need it
Snow Golems In Hot Biomes
The "Snow Golems in Hot Biomes" mod for Fabric allows players to summon and maintain snow golems even in hot and hostile environments such as deserts and the Nether.
NexusMobs
NexusMobs is a comprehensive RPG plugin that transforms your Minecraft server by introducing over 20 unique bosses
My Shadow
My Shadow adds a unique side quest to Minecraft, involving a cursed relic, a sword duel and other magic stuff.
SoulMaces Reborn
SoulMaces Reborn is an exciting RPG Minecraft plugin featuring custom maces, soul capturing mechanics, magical rituals, and player revive systems.
RandomMobBoost
Give a Chance Reinforcement Every Mob.
QAPlugin
Add question and answer game to your server.
Structurepile
Makes all structures very common.
SUX (sac's Utilities)
Small utilities via datapacking like common utility clients/mods but in a vanilla way
SScript
Fabric mod that adds a Python/Lua-like scripting language to your Minecraft server. Write game logic with events, built-in functions, HTTP requests and file I/O — no Java required.
almost immortal
this mod makes you almost invincible
Chicken Jockey Plus
Adds commands to summon different variant jockeys
BlockRoulette
summons TNT when a Block is broken with a changable Chance
Common-Fish
Tropical fish Advancements - Fish goes weeeeeeeeeeeee
Shizophrenia
Makes you question everything.