Fabric Mods for Minecraft 1.21
Browse 38 free Fabric mods for Minecraft 1.21 — popular picks include Profundis: Nine New Quality Cave Biomes, Stellarity, RPGTitles.
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Profundis: Nine New Quality Cave Biomes
A world generation mod adding in nine new cave biomes, to make the underground more varied.
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.
RPGTitles
Small, cosmetic datapack that adds titles to small things in the game! See the dimension name when you switch dimension, see the current biome you are in and maybe get something when you kill a powerful foe..

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...
Ruined Portals Only
Restrict lighting of portals to within a ruined portal structure's bounding box. Makes exploration a must and controls Nether travel. Configurable for Overworld and Nether. Now supports modded structures and biomes!
Biome Tag Villagers
Changes Villager Types to use Tags instead of just Biomes!
Better Birch Forest
Better Birch Forest adds new vegetation and more Saturatet colors to the Birch Forest. Also it adds Fireflys
Structure nature(Alpha)
we add everything we think is fun anything that will enhance the minecraft experience
B-RTP
BlanketRTP is a Minecraft Fabric mod that offers customizable rtp (random teleportation), including biome-specific options. Enhance exploration with a gliding mechanic after the (RTP). Easy to configure and optimized for performance
Salinity
A New Cave Biome, a New Armor, a New Mob, and more.
Corrupted Nether
Adds a Corrupted Forest biome to The Nether
Biome Spreader
Adds recipes for potions that can spread biomes
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.
Jungle Update
Mod has been merged! - https://modrinth.com/mod/jaizmod This is to keep the work load down for myself, and keep updates coming! Adds new jungle related features
Canopy
Adds rainforests to Minecraft including 3 new biomes, rainforest mobs and more!
Saltcraft
A mod adding salt biomes, mobs, structures and blocks into Minecraft
Reforested
A Reimagining/Love letter to Forestry and Binnie's Mods for Minecraft Fabric 1.21
Sam's Tropical Update
An overhaul of Minecraft's jungles, swamps, rivers, and much more
Geologica
Overworld biomes with natural rocks and sinkholes without adding bloat.
Locator by Andrew
Adds a /locator command that trades emeralds to locate structures, biomes, or POIs with balanced costs.
wandering explorers
wandering traders trade biome explorer maps
Genshin Impact Lunar Expansion
It is a massive expansion that brings the magic, weaponry, and currencies of Teyvat into Minecraft, while completely overhauling your end-game exploration with breathtaking new biomes, mystical abilities, and custom entities.
Better Reimagined
Enjoy this survival experience in an epic and immersive adventure. It introduces new mechanics that enrich gameplay with dynamic combat, while vibrant new biomes and impressive structures encourage exploration with unique and challenging mobs
Japancraft
This mod adds new japanese-style features like a new mob from princess mononoke, structures, a new biome, a new dimension, armor, weapons and more!
Okil6's biome dimensions
Every Biome In Minecraft Is A Dimension!
Aran's Discord Presence
A lightweight, customizable Discord Rich Presence mod for Fabric. Features a built-in settings menu to toggle Server IP, biomes, dimensions, and player heads on your Discord status.
Biznesmod
This mod adds new biomes, a new villager proffesion, new mechanics (upgradable abilities, collecting iron dust to make iron ingots, etc...), new custom structures (10+), a TNT cannon which shoots tnt where you look and some new redstone components.
Biomes Unlocked
Makes biome-restricted resources more easily available or renewable
Slimes Everywhere
Allows Slimes to spawn at night in any biome
Ancient City Underground
Makes Ancient Cities generate densely underground in all Overworld biomes. Every chunk is covered by city structures with moderate overlap. Players spawn safely inside the city.
Villera
Turn villages into living economy hubs with biome-adaptive banks and markets, secure currency, rentable chunk claims and performance-friendly stacked spawners
ChunkMix
Every chunk - New biome! Spice up your world!
Biome Builder
Build actual minecraft biomes, block by block, wherever you want.
Azalea Growth Control Mod (1.21.11, 1.21.5) – Natural Azalea World Generation
Azalea Growth Control Mod adjusts world generation by limiting azalea tree growth to appropriate biomes. The mod uses a biome tag to define where azalea trees are allowed to generate, ensuring more natural placement across both vanilla and modded biomes without introducing new blocks or mechanics. Features: Restricts azalea tree generation to suitable biomes Uses […]
Etherology Mod (1.21.1, 1.21) – Thaumcraft Comeback
Etherology Mod is a lore-rich mod that combines immersive exploration with intricate mechanics, designed to expand your Minecraft through alchemy, technology, and new biomes. Features: Discover ancient knowledge and uncover the mysteries of the Ether. Master alchemical crafting, reality-distorting staves, and unique technologies. Explore the enchanting Golden Forest with its stunning yellow-leaved trees. Journey underground […]