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Minecraft Java 1.21 Mods

Browse 411 free mods for Minecraft Java 1.21 — popular picks include Craftable Mob Eggs, HeroPets, HARD NEW.

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Craftable Mob Eggs
1.21

Craftable Mob Eggs

With this project you can simply craft mob eggs. Perfect for survival worlds!

51downloads
HeroPets
1.21.11paper

HeroPets

Adopt, level up, and care for RPG Tamagotchi companions with custom vitals, digital PC storage, and mountable pets!

48downloads
HARD NEW
1.21.1neoforge

HARD NEW

A technologically advanced game with a focus on realism! Shaders, automation, smart NPCs, hundreds of animals, and hardcore bosses. Explore this vibrant world with your friends using the built-in voice chat.

47downloads
OrjusBlockStats
1.21

OrjusBlockStats

OrjusBlockStats is a powerful and lightweight flexible block tracking plugin designed for survival and competitive Minecraft servers.

47downloads
UltimateHelperPets | Interactive & Functional Pets (1.20 - 1.21+)
1.20spigot

UltimateHelperPets | Interactive & Functional Pets (1.20 - 1.21+)

More than just a pet—your ultimate survival partner.

46downloads
Ultimate Vanilla
1.21.11fabric

Ultimate Vanilla

A fully configurable collection of vanilla survival tweaks

45downloads
EggSpawn Scrambled
1.21.1neoforge

EggSpawn Scrambled

This makes it possible to acquire Mob Spawners and Spawn Eggs in Survival Minecraft.

45downloads
GiveMeYourHead
1.20

GiveMeYourHead

GiveMeYourHead is a simple yet essential plugin for any competitive Minecraft server. Whether you are running a hardcore survival world or a high-stakes PvP arena, this plugin adds a rewarding twist to every player encounter

45downloads
True Man's World
1.21

True Man's World

This data pack is designed to make your survival more difficult without adding new mobs, using hardcore or reducing health to zero.

43downloads
simulator infection  epidemic crisis
1.21

simulator infection epidemic crisis

apocalyptic zombie infection simulator that transforms servers into a pandemic survival experience. Features progressive infection spread, contaminated players, quarantined villages, multiple zombie variants, vaccine crafting, and crisis events.

42downloads
Kill Mob Gain HP & Hunger
1.21spigot

Kill Mob Gain HP & Hunger

Gain Health & Hunger by Killing Mobs - Boost Your Survival!

41downloads
WorldStudios' Stoney Bois
1.21.4neoforge

WorldStudios' Stoney Bois

Brings some stone blocks to life.

39downloads
Better Hardcore Datapack
24w18a

Better Hardcore Datapack

Completely overhauls Hardcore mode to be true danger.

38downloads
[Hardcore+] You sure that's a passive mob?
1.20

[Hardcore+] You sure that's a passive mob?

This plugin will add challenge where players must becareful with the animals around them

31downloads
Monster Rework
1.21.11

Monster Rework

A datapack which reworks monsters and their spawning while also while also adding survival elements. All to make the game a more interesting experience.

30downloads
Infectious Mod CleanUp (Mocagem Survival Tweak)
1.21.1

Infectious Mod CleanUp (Mocagem Survival Tweak)

Removes a lot of mobs and items that don't fit the "zombie apocalypse" aesthetic very well.

30downloads
mc is too ez
1.21.8neoforge

mc is too ez

A survival difficulty mod that makes Minecraft harder, more punishing, and less forgiving.

27downloads
SIXsBoom
1.21

SIXsBoom

PvE creeper survival arena minigame with custom wave system

27downloads
WildDifficulty
1.19spigot

WildDifficulty

Vanilla was never enough. Redefine survival, one mob at a time.

25downloads
Zaoneblock
1.21spigot

Zaoneblock

A plugin for playing sounds, messages, and commands on block break, mob kill, and fishing events.

22downloads
KyuTweaks
1.21.11

KyuTweaks

"Slight" Tweaks and Additions for vanilla survival.

21downloads
DrownedOverhaul
1.21.4paper

DrownedOverhaul

Drowned mobs can now grab and drag players underwater. A dangerous new twist to ocean survival!

19downloads
Survival+
1.21.9

Survival+

Survival+ is a datapack that adds difficulty and suprise to Minecraft again. By adding tougher enemies and cool unique items. Along with a bunch of new mechanics and reworks of some old ones, causing you to relearn Minecraft in a whole new way!

18downloads
BalancedTeam
1.20spigot

BalancedTeam

A high-performance Clan/Team plugin for Anarchy and survival-competitive Minecraft servers.

17downloads
SkyBuddy
1.16

SkyBuddy

The ultimate interactive and customizable island assistant plugin for Skyblock servers.

12downloads
TG Random Mob Drop
1.21

TG Random Mob Drop

🐄 Every mob drops the loot of a randomly assigned mob, creating a fun and unpredictable survival challenge. Perfect for singleplayer and multiplayer adventures!

12downloads
Squid Improvements
1.15

Squid Improvements

Squids and Glow Squids will give effects when you try to attack them! Survival friendly addition to vanilla worlds

7downloads
Spaceworld Mons Data Pack (1.21.1, 1.20.1) – Catch and Train Forgotten
1.21.1

Spaceworld Mons Data Pack (1.21.1, 1.20.1) – Catch and Train Forgotten

Spaceworld Mons Data Pack expands Cobblemon with over 80 prototype pocket monsters from early gaming history. It adds forgotten creatures, new evolutionary paths, and distinct combat attacks to your survival world. You can find these rare forms wandering biomes naturally, train them through battle, or evolve old favorites into brand-new forms. Features: Adds over 80 […]

Craftemon Data Pack (1.21.11, 1.20.1) – Catch and Train Custom Vanilla-Inspired
1.21.11

Craftemon Data Pack (1.21.11, 1.20.1) – Catch and Train Custom Vanilla-Inspired

Craftemon Data Pack extends Cobblemon with custom creatures inspired by classic Minecraft mobs and blocks. This data pack fills your biomes and dimensions with new monsters to catch, train, and evolve during your survival playthrough. You can travel through forests, ancient cities, and deep nether terrain to track down rare spawns and legendary species. Features: […]

Aeternum Realism Resource Pack (1.21.11, 1.21.1) – Grounded Realism
1.21.11

Aeternum Realism Resource Pack (1.21.11, 1.21.1) – Grounded Realism

Aeternum Realism Resource Pack repaints Minecraft with detailed 32x textures for a grounded, lifelike look. This pack adds hand-crafted realism to mobs, foliage, and equipment while keeping the game running smoothly. It updates blocks and items with sharper visuals that fit right into survival or creative play. Features: Lifelike Mobs: Updates creature models with new […]

Kult Craft Core Data Pack (1.21.1, 1.20.1) – Fight Custom Bosses Without a Long
1.21.1

Kult Craft Core Data Pack (1.21.1, 1.20.1) – Fight Custom Bosses Without a Long

Kult Craft Core Data Pack extends the Attribute Setter Mod by balancing health and damage numbers for several other mods. The pack lowers the health of specific boss-like monsters so they do not take forever to defeat in regular survival gameplay. Features: Changes the health stats for specific creatures from different mods so they fit […]

All The Mons X Mega Showdown Data Pack (1.21.1) – Catch and Ride Over 130 New
1.21.1

All The Mons X Mega Showdown Data Pack (1.21.1) – Catch and Ride Over 130 New

All the Mons X Mega Showdown Data Pack fixes overlap bugs between the AllTheMons and Mega Showdown addons for Cobblemon. It brings over 130 unique creatures into your world without causing game crashes. You can find and catch all these additions in normal survival gameplay. The pack also adds better models, fixes Pokédex entries, and […]

Item Glow Data Pack (26.2, 1.21.1) – Never Lose Track Of Dropped Items Again
1.21.1

Item Glow Data Pack (26.2, 1.21.1) – Never Lose Track Of Dropped Items Again

Item Glow Data Pack makes all nearby dropped items glow subtly, helping you easily locate them even in dark caves, forests, or underwater. Whether you're mining, fighting mobs, or just accidentally dropped something valuable, this pack ensures you won't leave anything behind. A perfect quality-of-life addition for any survival playthrough! Enjoy playing this data pack! […]

Dragon Totem of Undying Resource Pack (1.21.11, 1.21.1) – A Fierce Dragon Character
1.21.11

Dragon Totem of Undying Resource Pack (1.21.11, 1.21.1) – A Fierce Dragon Character

Dragon Totem of Undying Resource Pack replaces vanilla totems with a fierce red dragon design. This pack changes the standard gold and green item into a fiery mythical creature. It gives your survival tools a fresh fantasy look. When you hold it in your hand, you see a tiny winged beast ready to save your […]

Garfield Totem of Undying Resource Pack (1.21.11, 1.21.1) – Comic Character In The Game
1.21.11

Garfield Totem of Undying Resource Pack (1.21.11, 1.21.1) – Comic Character In The Game

Garfield Totem of Undying Resource Pack replaces the normal totem in the game with a famous orange cat. This pack brings a funny and lighthearted mood to your survival worlds. You get to hold a familiar comic character in your hand while you fight mobs. It gives you a good laugh when you need extra […]

Born in Chaos Mod (1.21.1, 1.20.1) – A Lot of Hostile Mobs
1.21.1forge

Born in Chaos Mod (1.21.1, 1.20.1) – A Lot of Hostile Mobs

Born in Chaos Mod is a Minecraft mod that significantly increases survival difficulty by adding dangerous new mobs, structures, and equipment. It focuses on tactical combat, making every encounter require strategy instead of simple fighting. Features: New Hostile Mobs Large variety of enemies with unique abilities and behaviors Divided into 3 main types: Undead – […]