Quilt Mods for Minecraft 1.21
Browse 2,204 free Quilt mods for Minecraft 1.21 — popular picks include Larger Ore Veins: Nether, Inertia Anti Cheat, Refined Advancements.
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Larger Ore Veins: Nether
Very slightly increases the generation of ancient debris

Inertia Anti Cheat
Stop people from using unwanted mods on your server!

Refined Advancements
Clearer progression advancements and new side-goals to aim for

Better Underground Caves
Optimize the original cave terrain and add large underground cave terrain.

Pure Emerald Tools
A unique take on emerald armor and tools, that just may fit your vibe.

FlightAssistant
FlightAssistant is a client side Minecraft mod that adds a flight style HUD (like one you would see in a flight simulator), autopilot systems, flight protections, and more.

Crafting+
319 Quick and Enhanced Crafting Recipes

Sword Blocking
Client-side mod to restore sword blocking. You just need to have a shield in your offhand (or be on a ViaVersion server).

Vanilla Fireflies
Datapack that adds ambient fireflies - now they fly not only near bushes.

Revamped Shipwrecks
Shipwreck structures redesigned with jigsaw degradation stages, hundreds of unique combinations!

Farmer's Cutting: Terrestria
Adds Farmer's Delight (Refabricated) cutting recipes for Terrestria
Carpets Core
Simple lib for creating multifaced carpets

Enchants Plus
Adds 18 vanilla styled enchantments and 4 new curses!

Solid Mobs
Gives mobs collisions & interactions like blocks.
- FPS Booster - Lag Killer
powerful client-side performance FPS booster

Client Time
Override the time and weather on the client
Compact F3 Plus
a mod that replaces the vanilla F3 with a clean, minimal hud overlay.
"Faster" Particle Collisions
A standalone version of one of Methane's particle optimizations
GUI Scale Splitter
Adjust the scale of the scoreboard, tab list, and title separately
Tinkerer's Smithing
A sentimental and convenient rebalance of gear crafting, repair, enchanting, and upgrading.

Mineable Spawner
Mine spawners with a pickaxe (spawn eggs drop too!) Configurable
Creeper Confetti Plus
A mod that replaces the Creeper explosion with nice confetti - a port of Creeper Confetti to Architectury.

One Survival Island
Datapack that creates a Single Survival Island in an Infinite Ocean World
Firework Frenzy
An overhaul to Firework Rockets and how the Crossbow makes use of them.
Cinch's Abandoned Houses
Abandoned houses with starter loot can randomly be found around the world.

Infinity and Mending
Adds ability to craft bow with mending and infinity at same time

LIMBO Dimension Datapack
Adds a dimension that is inspired by the game LIMBO, can be accessed in survival and offers a unique survival experience, and special loot. For best immersion, turn off shaders and set the render distance lower so the fog is all around you.

More Chests Variants - Biomes O' Plenty
Chests for all the Biomes O' Plenty woods
All-in-One VeinMiner & TreeFeller
The ultimate harvesting utility for veins, trees, and 3x3 excavation. Now featuring Custom Block mining (dynamic durability cost), Anti-Break tool protection, and full enchantment support.

5555ff-lib
Library used in Jodek's projects

Librarian's Balance
Custom trading and new mechanics to improve the progression of obtaining enchantments through villagers.

80% Abandoned Villages
Increases the abandoned/zombie village amount from vanilla's 2%, up to 80%.

Dragon Mounts Datapack
Dragon Mounts Datapack adds the Ability to Hatch Dragon Eggs into Rideable Pet Dragons!

Xaero's Map Chest Tracker Integration
This mod lets you see the results of Chest Tracker in the Xaero's map.

Larger biomes
Makes biomes bigger (but not as big as in Large Biomes preset)

Fuji (Essentials)
A mod that ports EssentialsX / CMI from bukkit to fabric. (Fully Server-side essential mod)