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Minecraft Java 1.21 Mods

Browse 20 free mods for Minecraft Java 1.21 — popular picks include ArmorPlus, Legendary Monsters, Ancient Structures: Cultural buildings.

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ArmorPlus
1.20.1forge

ArmorPlus

ArmorPlus is a mod based on exploration, killing, building, getting geared up, fight the bosses and explore the depths of your worlds

11Mdownloads
Legendary Monsters
1.20.1forge

Legendary Monsters

Adds middle game and late game bosses to the base game

11Mdownloads
Ancient Structures: Cultural buildings
1.20.1fabric

Ancient Structures: Cultural buildings

Adds handcrafted structures from ancient civilizations (Mayan, Roman, Japanese, Germanic) with custom loot, mobs, and secrets.

1.2Mdownloads
L's Ocean Trader
1.21.8neoforge

L's Ocean Trader

adds a new villager, the Ocean Trader and his lighthouse

395kdownloads
Grim Kingdoms: Lost structures & ruins
1.21.8fabric

Grim Kingdoms: Lost structures & ruins

Adds Castles - Unique vanilla mobs/ hidden items

249kdownloads
Cult of Azazel
1.20.1forge

Cult of Azazel

A mod that adds a mansion-like structure to Nether

198kdownloads
Advanced Golems (Fabric)
1.21.1fabric

Advanced Golems (Fabric)

Spawn small golems that help defend your base

60kdownloads
Advanced Golems (Forge/NeoForge)
1.21.1neoforge

Advanced Golems (Forge/NeoForge)

Spawn small golems that help defend your base

43kdownloads
Krip Turrets
1.21.1neoforge

Krip Turrets

This mod will add several new types of turrets that protect you and your buildings from evil and dangerous entities.

21kdownloads
Ancient Gems: Reforged
1.21.8neoforge

Ancient Gems: Reforged

Add 75 gems and numerous minerals that will allow craft a multitude of tools, armors, decorative elements, and building blocks that will complement your gaming experience.

9.1kdownloads
Risus - Blood & Ruin
1.21.1neoforge

Risus - Blood & Ruin

This mod adds items, mobs and structures to the base game, focusing on a fleshy/occult theme.

3.8kdownloads
Upgraded Jungle
1.21.1neoforge

Upgraded Jungle

Mod mainly adding a completely new jungle biome, lots of building blocks and much more.

786downloads
Monsters Magic and Missiles
1.20.1forge

Monsters Magic and Missiles

{WIP} Im using fear the Nightfall as a base modpack and adding more magic,and modern weapon mods as well as ad astra and various ~realistic-ish additions

735downloads
Lullaby's Lucky Blocks Mod (1.21.11, 1.21.1) – Surprise Blocks With Mobs, Weapons, And Loot
1.21.11fabric

Lullaby's Lucky Blocks Mod (1.21.11, 1.21.1) – Surprise Blocks With Mobs, Weapons, And Loot

lullaby's Lucky Blocks Mod uses display entities to show the block and offers randomized rewards or traps when broken. Features: No texture pack required. Uses display entities as Lucky Blocks. Randomized rewards: items, blocks, traps, mobs. Compatible with base game loot tables. Screenshots: lullaby's Lucky Blocks Mod Download Links For Minecraft 1.21.11 Forge/Fabric/Quilt/NeoForge Version: Download […]

K-Turrets Mod (1.21.1, 1.20.1) – Robots that Protect Your Base
1.21.1forge

K-Turrets Mod (1.21.1, 1.20.1) – Robots that Protect Your Base

K-Turrets Mod ) is a Minecraft mod which adds several turrets and combat drones. Turrets protect areas from hostile mobs. Drones work similarly to turrets, but are mobile and have lower stats. Customizable, deployable, Different ammo and effects for each. Features: Bullet turret: This turret uses iron nuggets and gold nuggets as ammo and shoots […]

Back From Hell - Springtrap (FNAF) mod by Murslav
1.20.1forge

Back From Hell - Springtrap (FNAF) mod by Murslav

A small mod that adds Springtrap, who will spawn deactivated every 5 days infront of your house and then become active, Springlock suit, Remnant and 4 new achivments.

16kdownloads
My Fabric PVP
1.21.1fabric

My Fabric PVP

Is it PVP? Is it Building? Its Combined!

535downloads
Wands of Combat Mod (26.2, 1.21.1) – Cast Powerful Elemental Spells in Battle
1.21.1

Wands of Combat Mod (26.2, 1.21.1) – Cast Powerful Elemental Spells in Battle

Wands of Combat Mod adds unique magical wands with custom passive powers, combat skills, and combo triggers. You can craft each wand using a special base item to freeze monsters, call down lightning strikes, pull items from afar, or gain defensive shields during fights. Every weapon brings a distinct playstyle to combat and movement. Features: […]

Hell Gunners Mod (1.21.1) – Defend Your Base with Heavy Helldivers Weapons
1.21.1

Hell Gunners Mod (1.21.1) – Defend Your Base with Heavy Helldivers Weapons

Hell Gunners Mod adds a selection of weapons inspired by the Helldivers 2 universe to your game. This mod gives you new tools to fight off monsters and defend your base. You get access to simple, easy-to-use guns that come with custom animations. It brings a fresh combat style for players who want a break […]

Sengoku Jidai Japanese Overhaul Mod (1.21.1) – Build Samurai Castles
1.21.1

Sengoku Jidai Japanese Overhaul Mod (1.21.1) – Build Samurai Castles

Sengoku Jidai Japanese Overhaul Mod transforms your entire Minecraft world into a historical Japanese landscape. It replaces regular biomes with beautiful seasonal forests, towering mountains, and relaxing hot springs. This mod adds new weapons, blocks, and creatures straight from Japanese mythology. You can build traditional castles and fight unique monsters in a completely new environment. […]