Fabric Mods for Minecraft 1.21
Browse 749 free Fabric mods for Minecraft 1.21 — popular picks include Grid World Generator, One Billion Things, Hold Your Breath.
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Grid World Generator
Exactly 89.67% of the world is gone! Take this challenge and try thriving in a world where terrain is sparse, resources are scattered, and every block counts. Can you survive in the void between the grid?
One Billion Things
All your suggestions, in one mod. More of a showcase than anything.
Hold Your Breath
When you go underwater in-game, you need to hold your breath in real life.
Slow Your Roll
A mod about slowing down game progression

Vertical Lunge
Allows the lunge enchantment to launch you vertically

Not A Toy
Adds things that are DEFINITELY not toys. Created for Modfest Toybox
Tools of Steel
Not just another steel mod, give equipment progression more depth!
Jeck230NOTREALWORLD
AI-generated horror mod that adds the mysterious entity Jeck230, disturbing sounds, and a strange “not real world” atmosphere.

Sculk Contagione
Makes Sculk more, lets say, invasive

Armaments
Adds a few new unique and interesting weapons to the game
Create: Enhanced Totem Productions
Renewable totems of undying, so you can cheat death with confidence!
Ravents
🗸 Ravents for custom mechanics. Design multi-wave raids with complex triggers, create unique mobs with modified stats, gear, and mounted towers. Spawn control: Replace vanilla mobs or add custom copies.
ItemDuper-Pro
Perfect for players who want convenient item duplication with modern improvements and reliable functionality.
linecraft
Experience Minecraft in a 3-block wide line!
TargetLock
Press J to instantly aim your camera at the nearest living entity within 10 blocks. If no entity is in range, a message will appear on your screen letting you know.
Vanilla Backrooms
Vanilla-Backrooms is a server-side only Backrooms mod based on Polymer

Big Fungus
Grow thick fungus trees by planting fungi in a plus shape
Make It Rain!
Client-side mod that adds rain to normally dry Overworld biomes

Totem of Null
The Totem of Null, From Unstable SMP which when popped, Tagged players die.
Toxic Mod
A mod that is extremely toxic for no reason
Death+
Some extra features that happen on death.
Early Creaking
Creaking Mob, with Creaking Heart. Server-side mod!

Randinium
Random item challenges usually have no progression. This mod changes that by introducing a custom resource, drop multiplication and endgame gear. (Intended for Skyblock)
Orbital witherskull Cannon
Similar to Orbital strike cannon but spawn wither skull intead of tnt capable of breaking obsidian
Draventh Ores
⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc
Lifelike
Cellular Automata simulators! For ModFest: Toybox
Nether Portal Boom
This Mod will make your Nether Portal go boom if you ignite them.
Unhinged Carnival Supplies
Basically Party Supplies that might be just a little off
LVL = BORDER
It is a Challenge that makes the world border bigger when the player gets Level.(Also works as ServerMod with Friends, etc.)

Shared Hits
Adds a gamerule to share hits taken by players with all other active players. Works on single-player, integrated/LAN servers, and dedicated servers.
EIIAT (EveryItemIsATotem)
Turns every item into a totem. Has a blacklist.
GUI Recorder
Simple recorder for actions in any GUIs.
Mr. Potato Head
Build your own Mr. Potato Head that will enhance you when sitting in your offhand!
Verdant Growth
A spreading plant growth threatens to overtake and convert all matter in its path. Either fight it or join it!
player tick freezer
freezes survival players too when you do /tick freeze, not creative or spectators

Tiny Terrors
Adds baby (and jockey) versions of creepers, endermen, skeletons, stray, bogged and wither skeletons