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Minecraft Java 1.21 Mods

Browse 3,567 free mods for Minecraft Java 1.21 — popular picks include Biome Replacer, Monster Plus, [Let's Do] Meadow.

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Biome Replacer
1.21.11fabric

Biome Replacer

A quick way to get rid of a biome. Useful for tweaking datapack-based generators (like Terralith) that don't have a convenient configuration.

12Mdownloads
Monster Plus
1.21.1neoforge

Monster Plus

New mobs of each and every flavor to improve the exploration experience: biome-exclusive monsters, new challenges and more!

12Mdownloads
[Let's Do] Meadow
1.21.1fabric

[Let's Do] Meadow

Hey Wanderer! Sit down, enjoy a piece of cheese, and take a look at the new mountain pasture - cliffs, beautiful forests, clearings, and lots of colorful flowers.

12Mdownloads
Illager Warship
1.21.1neoforge

Illager Warship

Adds a big illager warship to the oceans

12Mdownloads
Better Biome Reblend
1.21.11fabric

Better Biome Reblend

Updated version of Better Biome Blend, a mod that improves and fixes biome color blending

11Mdownloads
Dynamic Trees - Biomes O' Plenty
1.20.1forge

Dynamic Trees - Biomes O' Plenty

Compatibility Mod between Dynamic Trees and Biomes O' Plenty

11Mdownloads
Oh The Biomes We've Gone
1.21.11neoforge

Oh The Biomes We've Gone

An astounding sequel to the original BYG mod for 1.20.1+ with over 50+ biomes ranging from the magical to the realistic and all breathtaking!

11Mdownloads
Umbral Skies
1.21.1neoforge

Umbral Skies

A mod for Twilight Forest-Aether content fusion

11Mdownloads
Geophilic
1.20fabric

Geophilic

A subtle-ish overhaul of vanilla Overworld biomes! Reworked!

9.9Mdownloads
Voidscape
1.21.1neoforge

Voidscape

Delve into the depths of the Void

9.9Mdownloads
Nature's Spirit
1.21.1fabric

Nature's Spirit

A minecraft mod which enhances world generation with new biomes, blocks, and items

9.8Mdownloads
Climate Rivers
1.21.11neoforge

Climate Rivers

Make your rivers stop looking like mistakes – and start flowing with style.

9.7Mdownloads
Cave Dust
1.21.8fabric

Cave Dust

Cave Dust is a Minecraft mod that adds the white ash particle from the Basalt Deltas biome to the underground to simulate dust!

9.6Mdownloads
Ocean Floor - Clay Sand and Dirt
1.21.1neoforge

Ocean Floor - Clay Sand and Dirt

Spawns patches of Clay, Sand, and Dirt, within the Deep Dcean layer of boring gravel

8.9Mdownloads
Spawn Balance Utility
1.21.9forge

Spawn Balance Utility

Allow you to control spawn weights and group size of mobs by Biome and Structure. This controls the mixture of mobs that spawn, it does not modify the Spawn Cap like our other mod, "Spawncap Control Utility".

8.4Mdownloads
Zombie Extreme
1.21.1neoforge

Zombie Extreme

This is a Big Mod that adds a bunch of new mechanics and a large number of zombies and infected to your minecraft world. In order to study a new biome, you need a Chemical Protective Suit, if you do not break at least one part, most of the radiation will i

8.2Mdownloads
Structory: Towers
1.21fabric

Structory: Towers

Adds immersive biome-themed towers to the world, as a standalone option or add-on to Structory

8.2Mdownloads
Traveler's Titles (Fabric)
1.21.4fabric

Traveler's Titles (Fabric)

Epic, RPG-like titles when entering biomes & dimensions!

8.0Mdownloads
Medieval Buildings [Nether Edition]
1.21.9neoforge

Medieval Buildings [Nether Edition]

New incredible medieval-style structures for the Nether!

7.9Mdownloads
Snuffles
1.20.4forge

Snuffles

Adds Snuffles, a new mob to snowy biomes!

7.7Mdownloads
Mushroom Quest
1.21.1neoforge

Mushroom Quest

Forage mushrooms and live out your cottagecore fantasies!

7.3Mdownloads
Repurposed Structures - Better Nether Fortress Compat Datapack
1.21.1

Repurposed Structures - Better Nether Fortress Compat Datapack

Add a giant Jungle Fortress into the world based on Yung's Better Nether Fortress mod!

7.1Mdownloads
Oh The Trees You'll Grow
1.21.11neoforge

Oh The Trees You'll Grow

Tree library used by popular mods such as Oh The Biomes You'll Go.

7.1Mdownloads
Farmer's Cutting: Oh The Biomes We've Gone
1.21.10fabric

Farmer's Cutting: Oh The Biomes We've Gone

Adds Farmer's Delight cutting recipes for Oh The Biomes We've Gone

6.9Mdownloads
Terrestria
1.21.11fabric

Terrestria

A mod for Fabric enhancing the detail of Minecraft with unique and vibrant biomes. Inspired by ExtrabiomesXL.

6.8Mdownloads
Awesome Dungeon - Forge
1.21.9forge

Awesome Dungeon - Forge

This mod adds structures/dungeons to your world.

6.7Mdownloads
Regrowth
1.21.11neoforge

Regrowth

Creatures eat and regrow plants. Villagers improve their villages.

6.5Mdownloads
Every Compat (Wood Good)
1.21.1neoforge

Every Compat (Wood Good)

Universal Wood Compat: Quark, Twilight Forest, Twigs, Another Furniture, Farmers Delight, Macaw's, Valhelsia, Architects Palette, Deco Blocks, Crayfish FM

6.3Mdownloads
Snow Pig [Forge]
1.21neoforge

Snow Pig [Forge]

Ever wanted a pig in snowy biomes? No? Well here you go anyway!

6.1Mdownloads
Pufferfish's Biome Dither [Fabric & Forge & NeoForge]
1.18.2neoforge

Pufferfish's Biome Dither [Fabric & Forge & NeoForge]

Adds dithering on the biome borders to the game.

6.1Mdownloads
Bibliobiomes Legacy
1.21.1neoforge

Bibliobiomes Legacy

Bibliobiomes Legacy is an addon for Bibliocraft Legacy that adds support for wood types from Biomes O' Plenty, Oh The Biomes We've Gone and Regions Unexplored.

5.7Mdownloads
Custom Entity Attributes (Modpack Utils Series)
1.21fabric

Custom Entity Attributes (Modpack Utils Series)

Change entity attributes globally, per dimension, biome, difficulty, or time. With % chances too!

5.7Mdownloads
[Let's Do] BloomingNature
1.21.1fabric

[Let's Do] BloomingNature

Explore a redesigned overworld: new animals, reshaped biomes, livelier landscapes.

5.6Mdownloads
Macaw's Oh The Biomes You'll Go / We've Gone
1.16.5forge

Macaw's Oh The Biomes You'll Go / We've Gone

A compatibility between Macaw's Mods and the different woods and stones of Oh The Biomes You'll Go / We've Gone

5.6Mdownloads
Awesome Dungeon - Fabric
1.21.11fabric

Awesome Dungeon - Fabric

This mod adds structures/dungeons to your world.

5.5Mdownloads
Feur - Extension Fossil
1.20.1forge

Feur - Extension Fossil

[Vanilla+] 15 new structures of old fossil, dragon skull and monster camps !

5.5Mdownloads