Minecraft Java 1.21 Mods
Browse 1,536 free mods for Minecraft Java 1.21 — popular picks include Eternal Quests: RPG Overhaul, RealMobSize, UNDERTALE WORLD.
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Eternal Quests: RPG Overhaul
Dive into Eternal Quests: RPG Overhaul! One mod, endless adventure—epic weapons, powerful armour, and fierce foes await. Forge your path and become a legend!
RealMobSize
Generate your mobs with real-life scale
UNDERTALE WORLD
This is a dimensional exploration mod for Undertale. Although my personal technical skills are limited, I strive to recreate and expand the world of Undertale in Minecraft in my own way.
Klsts' Metroid Redux
Power Suit Upgrades, exploration and Metroid Fights!
Otherworld
(UPDATE 1.0.2) Explore a polished and semi-unusual dungeon!
River Gentles
All about Spinosauridae and more
better mob : jungle expansion
Better Mob: Jungle Expansion transforms Minecraft jungles with animated creatures, dangerous predators, immersive wildlife, GeckoLib animations, tropical atmosphere, rare mobs, jungle structures, and realistic exploration adventures.
Into The Crazy
A cute, magical fantasy modpack with cozy biomes, charming villages, and adorable creatures—where soft, whimsical beauty hides ancient magic, dark secrets, and lurking danger beneath the surface. ✨🖤
Wealizh
An industrial-themed mod with imagination, featuring various minerals and machinery
Labyrythm
Labyrythm is a Neoforge mod for Minecraft 1.21.1 that challenges players with a procedurally generated, sound-reactive maze and a unique boss encounter.
Living World
A mod that aims to expand on the lackluster exploration, immersion, and looting of Minecraft!
Progressive No Structures
This datapack allows you to make progress and even beat the game in worlds with Generate Structures disabled!
Shogun's Blast - Undead & TNT
Explore haunted Japanese villages, battle explosive Oni Warlords, and defeat the Council of Leaders in this immersive RPG structure and combat mod.
Industrium Mod
Industrium is the all new mod for revamping your minecraft with a fresh set of items and blocks!
The Birth of Steve
The Birth of Steve is a roguelike dungeon adventure inspired by the core progression of The Binding of Isaac.
Nostalgia Blocks
Use Classic textured Minecraft blocks without resource packs and build to your heart's old content!
Grippers
A horror-comedy mod featuring a custom dimension, cryptic secrets, explore carefully, there's more going on than it seems.
End Phantoms
Simple datapack adding phantoms to the end.
Laicaps
[Alpha] A fantasy space exploration mod - for neoforge 1.21.1
Resource Armadillo
The way to generate valuable resources. Get an Armadillo and transform it into anything you want.
(Rustic's) Bountiful Seals
Adds many arctic-themed features (such as seals!)
Grandia Dungeons
A dark fantasy roguelike dungeon adventure with classes, bosses, cursed loot, magic, traders and procedural floors.
Kitchen Sink Modpack Template Pack
A modpack with many basic mods for starting a kitchen-sink modpack. Including world gen, performance, graphical, storage, extra mobs and quality of life mods.
Prehistoric stuff
¡A mod that plans add prehistoric creatures! Created by slendygato 3D modeler GhostyWeb2099 Puffersaur created originally by xndARTSREAL
Space Update
dannytaylor's April Fools' 2025 "Update"
Skulk Dimension
This Mod Adds New Dimension , structures and more!
Wili's Pikmins
Adds Pikmin and Pikmin-related features for a personal modpack/server
Cobbromon
This modpack blends the creature-collecting adventure of Cobblemon with the mechanical creativity of Create. Explore the world, build clever contraptions, and grow your team—all in a seamless mix of exploration and engineering.
REDACTED_ (WIP)
This ARG mod adds several entities, retextures, and dimensions.
Better Entity Control
Take full control over mob and projectile attributes — modify health, damage, speed, armor, knockback, scale for mobs, and damage, speed, gravity, knockback for projectiles, with commands in Russian and English.
Halloween Storm
With a single command, enable ravageous tornadoes, ghasts invasion in the overworld, ghosts (new mob), Herobrine and forbidden forests. Compatible with worldgen datapacks!
Saltpeter Gunpowder
A vanilla-friendly, immersive, well researched gunpowder crafting mod with no feature creep and no world generation tweaks.
Decharted
Decharted is a mod based around the corruption of the world, this mod allows multiple ways for the player to send their friends (or foes), to a separate dimension to have them stuck. You may also be able to spawn trap players before they die and respawn.
Liminal: Dark Horizons
A Modpack centered around liminal exploration, new dimensions, challenging mobs, unique structures, and immersive survival. Designed to feel mysterious, atmospheric, and rewarding while staying smooth and polished to play.
MagicMobControl
Get a Control on every mob
Pandora ReForged
4YR Project building Pandora from the movie Avatar in Minecraft