Minecraft Java 1.21 Mods
Browse 22 free mods for Minecraft Java 1.21 — popular picks include Curtain, Hollow Realms, Piglin Conservatory v3.0.
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Curtain
A Forge mod like fabric-carpet
Hollow Realms
Hollow Realms is a horror mod that plunges players into a twisted, decaying dimension where unsettling creatures, eerie mysteries, and a constant sense of dread lurk around every corner.
Piglin Conservatory v3.0
Adds a news structure to the Nether, The Piglin Conservatory, along with a new Obsidian Apple, Dragon Fruit, Toxic Mushrooms, Hoglins' Fossils, Corrupted Emerald and a New Music Discs!
Create: Dimension, Steamworks Realm
Create: Dimension, Steamworks Realm introduces a brand-new mining-focused dimension, designed for automation and large-scale resource extraction. This world is filled with rich veins of ores
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.
Mob AI Commands
A standalone version of the commands added by Mob AI Tweaks mod
Deltapack
A deltarune datapack adding content from dark fountains and dark worlds to the roaring knight. As well as items and spells like snowgrave and the shadow mantle.
RandomDirtDrops
RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
Customizable Dragon AI
Useful Datapack to customize the Ender Dragon's AI
More Villages Datapack
Adds more villages to the game.
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
ItemDisplayPlugin
This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,
Easy Freezing
A mod that allows you to Freeze Time around you at will! Try with multiplayer and things get confusing fast!
Espoir SMP
The plugin's twist is ⚙️ How the system works: 🧿 You start with 3 souls. 🔻 Each time you die, you lose a soul. 💀 At 0 souls, you become a ghost: spectator mode for 24 hours. ⚔️ Kill a player → you steal one of their souls, if you don't already have all
CorruptionCraft
A plugin that challenges players. Random events can occur. (no Spoilers!)
ADKM
Defeat a powerful, giant boss roaming your world to claim his legendary Scythe with +16 Attack Damage! A high-risk, high-reward challenge. (Requires GeckoLib)
GLB lib
A library mod that allows for glb 3d models to be used for minecraft entities
twinkle popo mod
it adds twinkle popo realistic pikachu and realistic hellokity
Proprietary Teams Bridge
Mod to bridge Priopetary Teams mod to FOSS alteanatives
QuickWhisper
A terrifying Minecraft horror mod made on NeoForge that adds procedural jumpscares, creepy ambient sounds, and an immersive custom glitch menu.
Biomorphosis Mod (1.21.4, 1.21.1) – Command a Mutating Swarm to Build a Living
Biomorphosis Mod brings a living, mutating ecosystem into your world. This mod lets you control a collective mind called the Swarm. You gather biomass to build organic structures and spawn new creatures. The world changes as insect villages and new biomes appear around you. You must decide whether to fight this growing nightmare or become […]