Neoforge Mods for Minecraft 1.21
Browse 1,595 free Neoforge mods for Minecraft 1.21 — popular picks include Mossy Forests, wardenia, Project: ICE.
Updated daily
Mossy Forests
This Mod adds Mossy Forests to minecraft!
wardenia
A new Warden ore, new tools, and a new dimension. The dimension can be found by unlocking the portal in the Deep Dark biome with a key.
Project: ICE
🧊 This mod adds ice tools, blocks, mobs, biomes, and much more!
Biomehaul
A mod that overhauls most biomes and adds some new features.
Survival update
Hello, this mod is designed to improve the survival aspect of Minecraft. It's an unfinished version that will undergo changes over the coming months, but in its current version, it includes new double and small flowers that beautify the plains and forests.
adrix's better end
this project adds end update: biomes, structures and mobs.
MysticRealm - Pinokio
🎭 Meet Pinocchio in the forests! Befriend him with music, or face his pack if provoked. Harvest his nose to craft a legendary sword that instantly turns any mob into wood! 🌲✨
Iplutt's World
A simple mod that adds a few biomes to the dimensions (currently only the end).
Jimbob
This mod adds a new formidable entity to your game, Jimbob. Jimbob will spawn in any biome, at any time, and will chase you down nonstop until he finally can get you. This is a horror mod.
Cheese & Lava
Cheese items, biome and lava chicken, cooked eggs, bucket of lava chicken and more.
Diabolical Islands x Incendium
Make Diabolical Islands compatible with Incendium. After installing this mod, Diabolical Islands will generate Incendium's biomes and structures following its own floating island rules.
The Tree
This mod will add an evil tree, a living stump, an evil forest soul, and a good version of it.
Humid Oxidation
A Block That Makes Copper Oxidise Faster In Humid Biomes Or When Near A Spore Blossom
Savi Over a game
My first mod introducing: Savi, Biome and more!
Be happyy
🎮 Be Happy is a NeoForge 1.21.1 modpack for long-term survival with friends or solo. Build flying machines with Create Aeronautics, automate factories with Mekanism & AE2, fight Cataclysm bosses, explore new biomes & YUNG's dungeons — not a vanilla pack!
Mainworld
Mainworld... mod introduces several new mechanics,items,and armor. it also adds about 30 diffferent structures,each suited to its own biome,as well as new biomes. Explore the world and discover its fill potential, know that they are always watching...
Biome Updated
This mod Aims to Update all Biomes on Minecraft. Start from the Plains Biome and Ending on The End

Color Biomes
This Adds 4 New Color Biomes Red, Blue, Green and yellow! (more coming soon if you get it)

The Voobious Mod
a mod that includes some biomes and mobs with recipes and a dimension to go with it
Biome Query
Adds one item that lets you easily see what biome the block you are clicking on is in.
Primavera
A modpack for friends! A kitchen-sink pack that's made for Create: Aeronautics and No Man's Land/Nature's Spirit.
P6 Korupcja
This mod adds P6. P6's tools and P6's fat. There is also a biome where he naturally spawns, which is in the forest.
Anti Magick: The Twilight Forest
Optional Anti Magick integration that suppresses Twilight Forest portals, magic abilities, summons, and selected boss actions
A Roving Journey To Tellus
Explore five new Overworld biomes and the Forgotten Dimension. Find new wood variants, new ores and weapons!
Blue...
A small but content-packed mod that adds a brand new biome, unique mobs, custom ore, and fun weapons like Silly Gun and Katana.
Lloyd's Mod
A mod that adds a biome and new items
Cozy Horizons
A cozy Minecraft modpack that expands the vanilla experience with new structures, biomes, mobs, items, and building options for a relaxing and immersive adventure.
Soul Born
Strives to bring an expansion to Minecraft's gameplay. Soul Born adds many items, structures, tools, enemies, and biomes to spice up Minecraft's core gameplay and overall feel. Better Combat is recomended to be used with this mod, but isn't required.
Frostium
An mod for update snowy biomes, adding Cryorite ore, new mobs, and some structures. Explore the updated snowy landscapes and gear up with themed tools.
Cavernous Unearthed
This mod adds vanilla style cave biomes and features.
OriiMon
A Cobblemon-focused modpack built for exploration, building, and quality-of-life. Discover new biomes, caves, villages, and structures while catching and training Cobblemon. Includes backpacks, minimaps, storage, furniture, and performance mods.
Expedition Titles
An addon for the mod Levelplate that adds titles when traveling through biomes.
Stellar Odyssey
My take on an End update! Adds new biomes, mobs, plants, and ore to the End!
Lava Ocean
Adds A New Biome Called Lava Ocean!
Oh The Biomes We've Engineered
Compatibility Bridge Between Oh The Biomes We've Gone and Immersive Engineering.
Summitcraft
Adds various things from the game SUMMITMYTH, including biomes, items, materials, and other things.