Minecraft Java 1.21 Mods
Browse 115 free mods for Minecraft Java 1.21 — popular picks include Oh The Biomes We've Gone, Nature's Spirit, Ecologics.
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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!

Nature's Spirit
A minecraft mod which enhances world generation with new biomes, blocks, and items
Ecologics
Simple vanilla biome updates, with fun mobs, blocks, and more!
Stellarity
Extreme rehaul of The End in a unique fantasy style, combined with biome and structure overhauls, new items, weapons and plenty of other content to discover.
Nature Arise
add new biomes, improve vanilla biomes and vanilla style additions
Mystic's Biomes
Explore a world full of color.
Ornamental Plants
A biome mod themed around botanical decoration.
No Man's Land
An uncompromising Overworld Overhaul, Enhancing world generation in every biome and environment.
Block Factory's Biomes - Add new vanilla+ biomes
🌳 This Biomes Add-on adds 5 brand-new biomes filled with unique animals, plants, blocks, and fully custom world generation!
Poisonous Potato Update
Almost all content from the April Fools' snapshot 24w14potato
Colored Dimensions!
Adds dimensions based around a color!

Alex's Caves: Refabricated
An unofficial Fabric port of 'Alex's Caves' - Explore five new rare cave biomes hidden under the surface of the Overworld...
[1.21.11 UPDATE] Better Biomes
Adds many different cool and amazing biomes, blocks, items, trees, and features to Minecraft.
Frights and Foliage
Adds Autumn-themed biomes, mobs, food, and more to Minecraft
Candyverse
Sweet new dimensions, entities, decorations, blocks and food!
Ethereal Grove
This project is a datapack inspired by The Twilight Forest mod. Bringing veteran player nostalgia into a future vision of what the The Twilight Forest may look like.
Archaeological_Research:Exploration
Archaeological research is an adventure mod that studies civilization and nature.
[Cobblemon] Jet's Biome Besties
A Cobblemon Addon that is dedicated to adding cosmetic variants for pokemon dependant to specific biomes/climates!
Better Birch Forest
Better Birch Forest adds new vegetation and more Saturatet colors to the Birch Forest. Also it adds Fireflys
Just Enough Null
A fanmod of The Broken Script that adds a Null Biome, Null Blocks and more!
Better Journeys
Vanilla+ Modpack, focused on exploration, nature, and good vibes!
MrFeg's Lightning Items
This Mod is a combat and exploration-focused mod that brings the power of thunderstorms into Minecraft. It adds new lightning-themed tools, weapons, mobs, blocks, biomes, dimensions, and a mysterious ARG storyline hidden beneath.Find Out The Truth 8962....
Realistic Plant Growth
Powerful Spigot/Paper plugin that brings a new level of realism to the Minecraft flora, allowing you to fine-tune growth parameters on a per-biome basis.

Miracleforest
New lore, new biomes, new types of trees, and new weapons and tools. A brand new journey awaits you!
Premier Pain mod
Add villager decoration blocks in lots of materials, food, beers, biomes and other adventure thing related to villager and the Premier Pain !
Better than bedrock
Better than bedrock is a mod what add new biomes new temples New dimensions
Salinity
A New Cave Biome, a New Armor, a New Mob, and more.
Cool End
This mod adds new biomes, structures, mobs and resources to the End and Overworld, expanding exploration and improving gameplay and visuals.
Apple Tree
Apple trees grow naturally in some biomes, and provide ornamental block & building block.
Mo Flowers
MoFlowers is a Minecraft mod that adds new flowers, shrubs and decorative blocks, with associated mechanics, biome generation, flower management API, custom rendering and localisation support.
Advancement Tracker
A Minecraft mod that allows for better advancement progress tracking with detailed insights for biome exploration, animal taming, breeding, food consumption, and monster hunting.
Biomes of Bountiful Fares
An addon to Bountiful Fares that adds new biomes centered around the mod!
Spontaneous-Replace: Cobwebbed
A Spontaneous-Replace expansion that adds various spider variants and exclusive biomes.
Amaranth
20+ unique biomes for you to explore
Grape Ore
ADD GRAPES AS FOOD
Mobiomes
Aims to add tons of custom creatures, biomes, items, weapons, blocks, plants, foods, structures and more