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Minecraft Java 1.21 Mods

Browse 1,580 free mods for Minecraft Java 1.21 — popular picks include Don't Kill Friends!, Sleep Animation: Immersive Sleeping Plugin, Arcanum Unbound.

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Don't Kill Friends!
1.16

Don't Kill Friends!

Protect your tamed animals from damage, even when you're offline! Lightweight plugin with HEX color support and full configurability for Minecraft 1.16.5-1.21.11.

1.3kdownloads
Sleep Animation: Immersive Sleeping Plugin
1.17

Sleep Animation: Immersive Sleeping Plugin

Simple: Adds an animation while the night is skipped by players sleeping, making things really more immersive!

1.3kdownloads
Arcanum Unbound
1.21.1neoforge

Arcanum Unbound

Arcanum Unbound - is a mod that adds magic and artifact crafting. You as a wizard need to become strongest. The mod has an experimental philosophy of sacrifice and the price of strength, be ready for the challenges.

1.3kdownloads
Item Caster
1.21

Item Caster

MythicMobs Add-on for Casting Skill with Item.

1.3kdownloads
Double Hit Damage
1.21

Double Hit Damage

Doubles mob and player hit damages.

1.3kdownloads
Temples & Templates
1.21.1neoforge

Temples & Templates

Adding more boss encounters and tools to spice up your minecraft playthroughs!

1.3kdownloads
Cancel Jump Critical Strike [PySpigot]
1.16spigot

Cancel Jump Critical Strike [PySpigot]

Removes the bonus damage to mobs caused by jumping

1.3kdownloads
Relics of a Fallen
1.21.11fabric

Relics of a Fallen

Defeat hostile and neutral mobs to collect powerful relics with unique abilities.

1.3kdownloads
Lookism
1.21.1neoforge

Lookism

A Minecraft Mod based on Martial Arts and PTJ Verse

1.3kdownloads
Coated Blades
1.21.5

Coated Blades

Potion effect tipped/coated weapons that inflict effects on players and mobs.

1.3kdownloads
Soul Cage
1.21.1neoforge

Soul Cage

Soul cages for capturing and releasing mobs

1.3kdownloads
CreepyPasta Legends (Java)
1.21.4neoforge

CreepyPasta Legends (Java)

Creepy Monsters Awaken, Haunting Players With Dark legends and Fear.

1.2kdownloads
Shearing Sheeps Drop op loot
1.21

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

1.2kdownloads
flamepot
1.20.5

flamepot

A Minecraft Datapack which adds new types of potion called Potion of Flames. Main function of these potions is setting players, mobs and entities on fire.

1.2kdownloads
Cryptozoologist
1.21.1neoforge

Cryptozoologist

Modification adds a lot of unusual mobs. Some of them, such as Nessie, Bigfoot and razzaks, are inspired by mythology and fantasy books, while others were created without any reference, or at least I think so :)

1.2kdownloads
What Lurks Between
1.21.1fabric

What Lurks Between

A lovecraft inspired magic mod with sanity, biomes, mobs and more.

1.2kdownloads
MGAMES SCPs - DAY ZERO
1.20.1forge

MGAMES SCPs - DAY ZERO

Build your own site while discovering what's been left behind by the foundation! Many SCPs to Secure, Protect and Contain!

1.2kdownloads
Explorer's Haven
1.21neoforge

Explorer's Haven

Explorer's Haven is an adventure modpack enhancing exploration, biomes, dungeons, and visuals for smooth performance. Discover new landscapes, battle mobs, and enjoy quality-of-life features while preserving Minecraft’s core experience.

1.2kdownloads
skillsystem
1.21.11

skillsystem

A classic MMO-inspired skill-based progression system for Minecraft. Features 40+ skills, 8-circle magic system with spellbooks and reagents, crafting quality tiers, thief skills, animal taming, and bidirectional gate travel portals.

1.2kdownloads
Crying Obsidian Upgrade
1.21.8fabric

Crying Obsidian Upgrade

Crying Obsidian Upgrade --- A mod that adds a lot of items, food, mechanics. Also adding a new biome, ores and mobs changing the idea of weeping obsidian. The mod also fills the world with different structures.The mod is filled with different content.

1.2kdownloads
Lost in Dreamland(迷失梦域国)
1.21.4neoforge

Lost in Dreamland(迷失梦域国)

Add a series of new things.Including a new dimension.

1.2kdownloads
NoMoreJumpscares
1.20.2fabric

NoMoreJumpscares

Removes the Elder Guardian curse effect when receiving mining fatigue

1.2kdownloads
Veil of Vines
1.21.1neoforge

Veil of Vines

A nature and magic mod that adds dozens of unique vine species. Harvest flowers to craft potpourri that repels hostile mobs, and adorn your builds with new decorative blocks. Explore, build, and survive with the power of plants!

1.2kdownloads
Dungeons of Doom
1.21.10

Dungeons of Doom

Adds new items, armour, and structures to minecraft!

1.2kdownloads
oSzoukaua's: Infini-Slime
1.21.11

oSzoukaua's: Infini-Slime

Makes slimes smaller the less health they have, and bigger the more health they have!

1.2kdownloads
PépitoCraft
1.21.1fabric

PépitoCraft

PepitoCraft: Adventure, Magic, and Combat Combined! Dive into an immersive and epic universe featuring mysterious dungeons, magical artifacts, fantastical creatures, and intense combat.

1.2kdownloads
Golem Gear
1.21fabric

Golem Gear

A Mod themed off of Iron Golems. The mod adds many features such as golem blocks, golem ores, golem tools, and much more!

1.2kdownloads
IFC-Integrations
1.21.1neoforge

IFC-Integrations

Unite the worlds of Ice and Fire and MCA Reborn with legendary relics, enhanced creature interactions, and a new way to experience both mods together.

1.2kdownloads
Mini Mobs
1.20

Mini Mobs

Adds new mini variant of mobs that spawn naturally.

1.2kdownloads
ashswaggpull
1.21.11fabric

ashswaggpull

A fishing rod added to Minecraft similar to the Unstable SMP Mafia ARC Fishing rod from the player Ashswagg

1.1kdownloads
Sanity System
1.21.4fabric

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.

1.1kdownloads
Lancelot - Adventures of Tellus
1.21.10neoforge

Lancelot - Adventures of Tellus

Offering beautiful terrain and content beyond Minecraft's traditional end-game in more ways than one, the Lancelot's main aim is to provide you a tonne of fun! New content for all 3 dimensions, automation and magic, as well as challenging new mobs!

1.1kdownloads
JOJO - stone block crusaders
1.21.11fabric

JOJO - stone block crusaders

Adds many features from the popular manga/anime jojo's bizzare adventure (jjba)

1.1kdownloads
Water of Youth
1.21.9

Water of Youth

Make your pets never age with this DataPack. You can turn entities into baby or adult form at will.

1.1kdownloads
Subota
1.21.1neoforge

Subota

Subota is a horror mod that brings terrifying desktop-level events, jumpscares, and loud sounds to your Minecraft world.

1.1kdownloads
MobPVP // CANCELLED
1.21fabric

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.

1.1kdownloads