Minecraft Java 1.21 Mods
Browse 105 free mods for Minecraft Java 1.21 — popular picks include item placer, Granular Hunger, Corner Entity.
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item placer
Place any item on any block side (supports multiple item in one block)
Granular Hunger
A mod that reworks the hunger system to be more granular, and ports some systems from BTW's Hardcore Hunger.
Corner Entity
is an atmospheric horror mod that turns your peaceful Minecraft survival into a nerve-wracking experience. You will never feel truly safe again, as something is watching you from the shadows, waiting for the perfect moment to strike.
MT Inventory Weight
Weight mechanics! Manage your load, balance inventory, and enhance survival or RPG-like gameplay.
Half Heart Hardcore
Half Heart Hardcore (or 1HP Challenge, alternatively) is a multiplayer challenge datapack, aimed at making the game almost impossible.
Better, Faster Happy Ghasts
Configurable speeds for the Happy Ghast, perfect for survival servers!
Worldly
Worldly adds a collection of configurable Minecraft world types, from classic Skyblock and OneBlock to Chunklock, Backrooms, Random Drops, Mountaineering, Fishing Border, and more.
Vanilla But Wrong
Vanilla but wrong is a Fabric psychological horror mod for singleplayer and multiplayer. One shared sanity system, adaptive Director events, trauma progression, and UI/audio corruption turn normal survival into a tense mind game.
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.
Hardcore Totem Nerf
A hardcore-inspired collection of nerfs and debuffs applied to Totems of Undying.
ZombieApocalypseSSS
ZombieApocalypseSSS is a comprehensive Minecraft plugin that transforms your server into a thrilling zombie survival apocalypse. Featuring advanced zombie AI, evolving variants, player infection mechanics, psychological horror elements, and dynamic events
Classic Combined
This mod creates a Classic Minecraft/Modern Minecraft hybrid experience. Recreates modern features in a Classic Minecraft/Alpha Minecraft style. Fully Survival compatible
Backrooms: The Complex
A survival friendly, lore accurate backrooms mod with high quality visuals.
Breaking One Block Breaks All The Blocks
If you break a block... it breaks every block in a 50 block radius.
Draventh Ores
⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc
Randinium
Random item challenges usually have no progression. This mod changes that by introducing a custom resource, drop multiplication and endgame gear. (Intended for Skyblock)
1 HP
Start the true Hardcore experience with 1HP.
player tick freezer
freezes survival players too when you do /tick freeze, not creative or spectators
Challenge Pack
Challenge yourself and beat the game with different challenges! Or just play for fun if hardcore is not enough! This is my first datapack!
Heartcore
A configurable Minecraft Hardcore mod that removes hearts when you die, with a few other added features.
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
Shearing Sheeps Drop op loot
Shear a sheep → get insane end-game loot. Works on every version from 1.21 to 1.21.10. Adds custom loot table, and turns sheep into walking OP supply crates. Perfect for chaos survival or challenge world
SharedSoul
Experience true cooperative survival where all players share health, hunger, inventory, XP, and death. When one player takes damage, everyone feels it. When one dies, all die together. Perfect for close-knit groups seeking the ultimate teamwork challenge.
OneHitTree
OneHitTree instantly breaks entire trees with one block hit. This lightweight plugin works across Minecraft 1.13-1.21, featuring configurable options and automatic leaf cleanup for efficient wood gathering.
Server Hardcore
A simple mod that makes a new world every time a player dies in hardcore.
JustARod
A mod that adds a lot of end rods,hardcore physiological mechanisms and useful items
Sanity System
A subtle psychological horror mod that adds a hidden sanity system, immersive hallucinations, and fear-based survival mechanics to Minecraft 1.21.4 Fabric.
MobPVP // CANCELLED
MobPVP transforms your Minecraft survival experience by assigning levels to every living creature in the game. Based on these levels, mobs gain different abilities, attributes, and loot chances, creating a more challenging and rewarding combat system.
No Sprinting
Vanilla-compatible way to disable sprinting in survival and on servers, making distance meaningful again
Hardcore-ban
Hardcore Ban Mod The Hardcore Ban Mod enhances the gameplay experience by automatically banning players for 24 hours upon their death.
Hardcore Enforcer
Forces hardcore world generation and disables cheats - Completly configurable.
Cauldron Concrete
Powder into a cauldron gets you concrete! Vanilla friendly and perfect for servers wanting a survival experience of the cauldron concrete functionality from Vanilla tweaks.
Half a Heart Hardcore
makes hardcore mode more challenging by giving you half a heart only
No Sprint-Swimming
Disables fast movement in the water in survival and on servers, making oceans daunting again
Moar Spears
16 new spear types with unique, powerful, wacky, and OP abilities, all while fitting nicely into vanilla survival.
Minecraft But Random Hearts
This datapack makes survival even more unpredictable. every 30 seconds, your maximum health (hearts) is randomized between 2 and 20 hearts.