Minecraft Java 1.21 Mods
Browse 1,432 free mods for Minecraft Java 1.21 — popular picks include mc is too ez, Stargate Replicators Mod, [Hardcore+] You sure that's a passive mob?.
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mc is too ez
A survival difficulty mod that makes Minecraft harder, more punishing, and less forgiving.
Stargate Replicators Mod
A Lore Acurate mod that adds the Replicators from the scfi TV show Stargate SG1 for Minecraft Java edition 1.21.1
[Hardcore+] You sure that's a passive mob?
This plugin will add challenge where players must becareful with the animals around them
Toastted`s Gunpowder Barrels & More
gunpowder barrels that explode instantly when lit with flint and steel and more
Empowered Skeletons
This data pack is hard, I haven't even gotten past the 3rd night without dying. going down caves is VERY hard because of these skeletons
Chaos Hunter
A chaotic Minecraft datapack that turns every mob kill into a randomized effect lottery.
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.

Good'ol Weapons
ever wanted to just go skibidi doom or maybe turn your pets into iron well now you can!

Scute Force
Craft mount armor with scutes!
Jub
Jub The Description says all Basically the mod is stuff revolving around the word Jub exept 2 mobs.
sniffybat companoin
the youtuber AKA me as a companion
donthitme
basically when u hit a mob, the game spawns 50 of those mobs around u, they start chasing u at 2x the speed, playing the ghast scream sound as they throw snowballs at u. very chaotic mod :) applies to every mob.
Enchantment Embargo
Prevents villagers from trading enchanted books.
Mixed loot entities
This datapack will reshuffle all entity loot!
Tramwajarze
This project adds very cute bugs called "tramwajarz". The name comes from the Polish langugage.
Patisco Update
This mod adds a new armor, ores, food and a mob.
Unknown creature.err
A simple resource pack that replaces the totem of undying with an unknown entity, which seems to be looking at you from the void...
Twilight Forest Smithing
Progression-based smithing for the Twilight Forest mod.
Aether Smithing
Progression-based smithing for the Aether mod.
Sporekin origin
Adds the sporekin origin. Adapted to life in total darkness, they've developed a biological mechanism that allows them to use their poisonous spores both defensively and offensively.
MH4 pack
changes mobs to players in minehield
Revenge of the COWS!
If you kill a cow you die... It's a bit random isnt it...
Exto
This mod adds a unique horror mod boss that has a rare chance of spawning in the dark forest, the badlands etc.
KyuTweaks
"Slight" Tweaks and Additions for vanilla survival.
Blake Imposter Mod
Adds the blake imposter from the hit FNF mod Vs Impostor Legacy but he has a big secret that's hiding within this mod
Monster Energy Pack
Monster Energy Pack is a resource pack that adds 11 types of real-life Monster energy drinks to the game
Client Side Pets
Pets that only you can see, works in both multiplayer and singleplayer. So this mod kinda makes you schizo.
Actually Scary Creakings
A small little datapack, made to make creakings legitimately a threat to the player.
Mob Rain
It starts raining all items and all mobs, so be careful.

Cobblemon: Furret Supremacy
This Project Is A Cobblemon Datapack That Increases Furret Spawns, Spawn Levels, And Replaces All Sentrets For Furrets.
Cataclysm Smithing
Progression-based smithing for the L_Ender's Cataclysm mod.
Calamity Bosses
20 NEW bosses that will shift the power changes in your world, adding custom item rewards and custom blessings to ease your fare through this treacherous world.
GambleHearts
Risk your hearts after every kill. Kill a player, then gamble for more hearts or take the safe reward. Lose all your hearts and get banished to the Void where you must survive, kill mobs, and find the escape portal to return.
Evil Within
Evil Within — A dark mob overhaul that gives Minecraft’s creatures a sinister new look. Featuring blood-red eyes, corrupted details, and an unsettling atmosphere that makes even familiar mobs feel dangerous. Dare to face what lurks within?
The Voidland
This mod ads a completely new biome: The Voidland, some new gear (armor still not included(will be added in future)) and new mobs!
Paradox Eye
The mod for the Eye of Paradox – the main antagonist of the series «Memories of the Teams: A New Life (VKNZH)».