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Minecraft Java 1.21 Mods

Browse 107 free mods for Minecraft Java 1.21 — popular picks include Medieval Buildings - New Structures!, Medieval Siege Machines, Night Lights | Modern Lights |Medieval Light.

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Medieval Buildings - New Structures!
1.20.2neoforge

Medieval Buildings - New Structures!

Add exciting medieval buildings with hidden enemies and treasures to the world!

17Mdownloads
Medieval Siege Machines
1.21.1fabric

Medieval Siege Machines

Adds medieval siege machines

1.6Mdownloads
Night Lights | Modern Lights |Medieval Light
1.21.1neoforge

Night Lights | Modern Lights |Medieval Light

Night Lights adds a variety of modern lights to decorate and illuminate the world.

171kdownloads
Dr. Stone: Kingdom of Science
1.21.1neoforge

Dr. Stone: Kingdom of Science

Adds Dr. Stone Items and Science Into Minecraft

57kdownloads
Balanced Energy |16x|
1.21.3

Balanced Energy |16x|

A Fantasy reimagining of Minecraft in an Elegant Style, updates every few centuries.

31kdownloads
Endfield Industry
1.21.1neoforge

Endfield Industry

This is a mod that adds the Integrated Industries facilities from the game "Arknights: Endfield" into "Minecraft".

27kdownloads
TheDungeons
1.17

TheDungeons

A custom dungeon with multiple functionality. Monsters, access levels and much more! [1.17-1.21.x]

13kdownloads
Elden Kingdom
1.21.1neoforge

Elden Kingdom

Explore the enhanced Minecraft world with The Warseed—new mobs, advanced storage, and immersive magical and medieval landscapes, all centered on the Create mod.

12kdownloads
NMI - server side mods only
1.21.3fabric

NMI - server side mods only

This is a collection of over ✨150+✨ server side mods that enhance your gameplay with voice chat, factions, economy, seasons, dungeons, buildings, mobs and much more. 🌌

11kdownloads
RTX ON GUNS, DUNGEONS AND TAVERNS
1.21.5fabric

RTX ON GUNS, DUNGEONS AND TAVERNS

RTX ON, now with many guns, dungeons and taverns to explore

11kdownloads
Ottoman Empire: Medieval Armors and Weapons
1.21.1neoforge

Ottoman Empire: Medieval Armors and Weapons

HamzaBU's Ottoman Empire Mod adds different kinds of things from the Ottoman Empire: Swords, Armor and much more.

10kdownloads
Old medicine
1.21.1neoforge

Old medicine

Medieval healing items, bandages, rusty syringes, herbs, flasks all craftable

6.7kdownloads
KnightedGhost's Beyond
1.21.1neoforge

KnightedGhost's Beyond

A sprawling adventure pack full of magic, machines, dungeons, and chaos. Quest your way through endless progression as you build, bonk, automate, and explore your path Beyond.

6.5kdownloads
MerliSMP:RE
1.21.1neoforge

MerliSMP:RE

MerliSMP: RE - A chaos-fueled sandbox packed with Create, Valkyrien Skies, AE2, magic, colonies, dungeons, trains, dragons, and more. No handholding, just freedom. Build anything. Automate everything. Break the game creatively

5.9kdownloads
Deltapack
1.21.11

Deltapack

A deltarune datapack adding content from dark fountains and dark worlds to the roaring knight. As well as items and spells like snowgrave and the shadow mantle.

5.0kdownloads
medieval ages and machinery
1.21.1neoforge

medieval ages and machinery

this mod pack combines fantasy and science

4.9kdownloads
Kingdoms & Sieges
1.21.1neoforge

Kingdoms & Sieges

A mod adding kingdoms and siege warfare.

4.6kdownloads
Dungeon Train Pack: A Lore-Rich Roguelite RPG Adventure
1.21.1neoforge

Dungeon Train Pack: A Lore-Rich Roguelite RPG Adventure

Adventure time inspired dungeon crawler on a train. Procedurally generated carriages on a infinite sable physics train. Rich narrative, with custom made mods for a completely unique experience.

3.8kdownloads
Create Master
1.21.1neoforge

Create Master

Explore technology Dungeon

3.4kdownloads
Dungeons and Shuttles Evolution
1.21.1neoforge

Dungeons and Shuttles Evolution

This is a 1.21.1 modpack inspired by the 1.12.2 classic. Explore, craft, and survive in a world filled with magic, technology, and challenging progression with CUSTOM quests and recipes.

3.2kdownloads
Better Spawner
1.21.8fabric

Better Spawner

Break a spawner to receive a spawn egg. Ideal for mob farms, custom dungeons, or advanced automation setups.

3.1kdownloads
Smp Craft
1.21.1neoforge

Smp Craft

The modpack is based on exploration of space , automation and dungeons

2.7kdownloads
VisualCraft by Moizoref
1.21.1fabric

VisualCraft by Moizoref

Make Minecraft look similar to Mojang's modern titles like Minecraft Dungeons and Legends. 1.21.1 Release!

2.3kdownloads
Create: Cogs & Cataclysm
1.21.1neoforge

Create: Cogs & Cataclysm

Immerse yourself in Create: Cogs & Cataclysm, a modpack where mechanical ingenuity meets high-stakes adventure. Built around the Create mod’s extensive automation and L_Ender’s Cataclysm's impressive dungeons and boss battles.

2.1kdownloads
Dungeons and Towns
1.21fabric

Dungeons and Towns

A kitchensink modpack where you can delve through massive dungeons, or build up a city, or even automate things you didn't even know you could!

2.1kdownloads
RareLabs Colonies
1.21.1neoforge

RareLabs Colonies

A vanilla+ pack focused on MineColonies, light tech, and exploration. Build colonies, automate with Create and Immersive Engineering, gear up with Silent Gear, and explore dungeons — all while keeping the vanilla world feel intact.

2.0kdownloads
Project Obscura
1.21.1neoforge

Project Obscura

Start Your Ultimate Exploration into an Adventure-Packed Modpack | Epic Dimensions & Massive Dungeons | Challenging Bosses | Stable Long-Term Multiplayer | Cozy Building & some Create Automation

1.9kdownloads
Survival Not Guaranteed
1.21.1neoforge

Survival Not Guaranteed

Dive into an expansive Minecraft modpack that blends challenging survival mechanics like temperature and thirst with extensive exploration of overhauled dungeons and new biomes, all while offering dynamic combat, magical mastery, and complex automation.

1.8kdownloads
Create: Originium Industry
1.21.1neoforge

Create: Originium Industry

A story about a brand new ore - Originium, inspired by Arknights.

1.7kdownloads
Create RPG+
1.21.1neoforge

Create RPG+

Create RPG+ merges the detailed machinery of the Create mod with deep RPG progression and challenging combat. It expands your world with stunning biomes, dangerous dungeons, and optimized visuals for an immersive adventure.

1.7kdownloads
Dungeon Asault
1.21.1neoforge

Dungeon Asault

Is a mod complementary, That added news ores, tecnology, flood, MOBS and new adventuers

1.7kdownloads
Grinding and industrialization GANDI 1
1.21.1neoforge

Grinding and industrialization GANDI 1

GregTech | Modern Industrialization | 600+ Dungeons | 20+ Taming | 150+ Biomes | 50+ Quests | 20+ Cross-Mod Interactions and Custom Interactions | 450+ Mobs

1.5kdownloads
Resource Boxes
1.21.4fabric

Resource Boxes

Adds boxes with different resources that can be found in dungeons or crafted from new ores

1.4kdownloads
Crucial Reimagined
1.21.1neoforge

Crucial Reimagined

An adventurous expansion on vanilla Minecraft with Pam's Harvest Craft 2, Farmer's Delight, Dungeons and Taverns, The Undergardens and Biomes o' Plenty with many more quality of life mods to ensure a fun and performant playthrough!

1.4kdownloads
Artemiscraft: Awakening of the Elements
1.20.1forge

Artemiscraft: Awakening of the Elements

Explore vast worlds, automate factories, and conquer dungeons! A perfect blend of tech progression and thrilling exploration—ready for the ultimate challenge?

1.0kdownloads
OPCraft
1.21.1fabric

OPCraft

Adventure through dungeons, caves, and hidden structures, seeking out treasures. Optimize your gameplay and play with friends or solo.

1.0kdownloads