Minecraft Java 1.21 Mods
Browse 327 free mods for Minecraft Java 1.21 — popular picks include Climatic Plants, Biome Bound Blocks, Halloween Storm.
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Climatic Plants
Temperature now matters, no more growing spruces in a tropical forest!
Biome Bound Blocks
Certain building blocks can only be placed in their native biome, encouraging architectural harmony with the environment.
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!
Biome Vote
Meerkats and oases in the desert.
Mesa Palace Stucture Datapack
This Datapack generate in your world a big structure in the Badlands biome.
Cold Biomes Only
Challenge yourself by making the world only cold biomes. Great for a hardcore winter challenge!
SG Compass
A simple mod to display the player coordinates and biome when a compass is in it's inventory.
Barren Lands
Almost only generating Badlands biomes! Creating a barren lands feel.
Snow Golems In Hot Biomes
The "Snow Golems in Hot Biomes" mod for Fabric allows players to summon and maintain snow golems even in hot and hostile environments such as deserts and the Nether.
Sam's Tropical Update
An overhaul of Minecraft's jungles, swamps, rivers, and much more
SurvivalReborn
Survival Reborn enhances Minecraft survival with dynamic terrain, new biomes, and unique mobs, offering fresh challenges and gameplay mechanics. Explore, craft, and survive in a world full of adventure, ancient secrets, and powerful items!
More Spring to Life
Transform your Minecraft world with brand-new flora, fauna, and mechanics across multiple biomes! This mod breathes fresh life into Birch Forests, Swamps, Badlands, Deserts, and Savannas, introducing new animals, plants, and interactive features.

Datapack Cold World
Makes it possible for snow to fall everywhere, in all biomes without changing their basic functions, and also freezes all the water on the surface.
99 Nights in The Forest
Old Growth Pine Taiga ONLY and adds 99 Nights in The Forest with basic functionality including a monster, players, a campfire, and upgrades, no abilities yet.
LogicCraft
LogicCraft adds “vanilla+” enhancements focused on immersion and quality of life: dynamic lighting with items, smarter sand/gravel physics, XP fusion, biome titles, oxygen bottles, cave tremors, ambient drips, quick campfire cooking, door synchronization,
Climate Based Growth
Plants grow based on biome temperature. Optimal climates speed up growth, while harsh climates slow it down.
CobbleHunt
Find the best Cobblemon spawn setup for any Pokémon: biome, time, weather, platform block, and optimal bait trio.
Biome Heart
Use the creaking heart with different blocks to change the biome.
end Update (Enderite & Biome Expansion)
Ever want an end update? Then download this mod and get it with 4 new biomes and tons to explore, get out and face the end
Far Frozen
Will you be able to survive and escape the frosty, Far Frozen landscape? All cold biomes. Hard early game survival.
Disposable Compass
Turn Nature's Compass and Explorer's Compass into one-destination navigation items with shift-right-click search-next.
LiteCoords
Lightweight HUD mod showing coordinates, direction, and biome in real time.
Geologica
Overworld biomes with natural rocks and sinkholes without adding bloat.
Next Generation MC
The next generation of Minecraft is here without overhauled terrain biomes and mechanics to bring some fresh new light to the biggest game ever created!
Celestial Horizons
Adds 170 Biomes ,1 new dimension and 20 blank presets for map making. Alpha v1.0 is designed for mapmaking.
Added Things
Random added features like ores, tools, biomes, dimensions & more. Oh, and there is a Deepslate Instant Mining Enchantment.
BetterCreaking
The Pale Garden as it should be. A scary and dangerous biome
Big Globe x Cold Sweat
A simple data pack that configures the Cold Sweat mod to better work with Big Globe's expanded world height, overhauled biomes, and unique blocks.
SuperRH bosses
This mod adds some uh cool stuff like a very strong boss and a total red biome
Single Biome World
Single Biome world allows you to generate entire Minecraft worlds using only one selected biome.
Locator by Andrew
Adds a /locator command that trades emeralds to locate structures, biomes, or POIs with balanced costs.
Trillion O Trees
An overworld mod adding many more tree types and forests... some added structures too
Biomes O' Cataclysms
This mod transforms Vanilla Minecraft into a challenge! One by one, all biomes will be destroyed, so try to complete the game before the end of the world!
Biome Shift
Ever wanted to change the biome in spots of your world? Now you can with Biome Shift!
Biome Advance
Add Biome Advancement
vibrant sky colors
makes some biomes have their own sky and fog color