Minecraft Java 1.21 Mods
Browse 316 free mods for Minecraft Java 1.21 — popular picks include Mob Tweaks, Fixed, Ice And Fire: Dragon Care.
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Mob Tweaks
In this data pack you'll find tons of tweaks, buffs/nerfs and improved consistency in worldbuilding when it comes to mobs. Axolotls have become much better, Illusioners are now in the game and there are even a couple of useful new items.
Fixed
A mod designed to fix the core gameplay elements of Survival Minecraft
Ice And Fire: Dragon Care
A comprehensive addon for Ice and Fire CE introducing ethical resource harvesting, dynamic bonding, and long-term dragon husbandry.
Hungry Cows
Cows/Mooshrooms now eat Grass/Mycelium/plants to restore their Milkability/Health, Milk functions as food and many more related features.
[Cobblemon] Jet's Biome Besties
A Cobblemon Addon that is dedicated to adding cosmetic variants for pokemon dependant to specific biomes/climates!
Variating Mobs
Mobs can spawn with varied stats! Aswell as a few more related things.
Ekipa Mod
The mod adds a lot of different things related to the team, eg. Ice cream of the team and their extensive mechanics, drinks, party CDs, mobs (no nowciax), notebooks, boxes, phone cases and many other things.
Prisma Craft
A massive project that greatly complements the idea of Prismarine and improves the mechanics of fishing. New tools, armor, blocks, mobs, mechanics and structures.
TradingPlus+
Enhances trading by adding over 280 new trades for villagers, providing a richer and more varied gameplay experience.

Ashen's Better AI
Improves mob ai, by adding mob jumping, a foodchain, and more!
MC-Reality Mod
this is a mod for Minecraft that seeks to transform the game experience into something closer to real life. It includes elements such as needs management (hunger, health, energy), an economy system, work, and the ability to interact with other player
EternalAppetite
Allows players to keep eating, storing the excess saturation
Better Birch Forest
Better Birch Forest adds new vegetation and more Saturatet colors to the Birch Forest. Also it adds Fireflys
Cobblemon: Aether Expansion
An Aether integration datapack for Cobblemon, adding new structures and regional variants.
Decorative-Desing Functions And Blocks: Furniture Mod
Decorative-Desing Functions And Blocks: Furniture Mod adds decorative blocks, new plants and mobs.

Valiance
A different take on Minecraft's combat, prioritizing difficulty, variety, and customization
MegaParrot
Adds super-sized, rideable, parrots!

FarmZ
Farming features like golden crops and a beethuut!
Eye of Dreams
When night falls, new powers awake. Adds the Eye of Dreams to Minecraft
Blue Depths
This is a datapack that improves the Minecraft ocean and river ecosystem by adding new mobs, blocks, and a brand new ocean boss. The new sea creatures include Orcas, Sharks, Sturgeons, Jellyfish, Catfish, and Tuna
RandomDirtDrops
RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.
FARWORLD
a mod aiming at expanding and padding out vanilla's content to give a truly full adventuring experience!
Potions & Such
New effects, potions and items, stackable potions, a use for the fletching table and new arrow types, a new monster and more!
Nest Egg
An Incubation add-on that lets eggs hatch from nests, among other features.
Hell's Survivor
A Nuclear Themed Horror Mod.
Manifestation of the souls
Manifest your soul as a stand, kill bosses, follow quest lines and find structures
Aquatic Breeding
Adds a way for fish and squid to breed, manual and automatic! Fish eat Fish Flakes, Squid hunt for live prey! Breed Tropical Fish of all colors and patterns!
P.I.G. - Personal Intermediate Groink
It isn't a normal pig...
Dungeons, Creatures and Classes (DnD)
A D&D inspired RPG mod with Mobs, structures, classes and a lot more!
THE DELTA RUNE
A DELTARUNE mod for Minecraft. Previously known as Minecraft: 5th Dimensional. (Heavy WIP.)
Dong Dong's random creation
magic and energy,new ore,new dimension,new tool and weapon type.
Geode Mania
Adds 2 new dimensions, new combat mechanics, 4 new ore types, and a heavy emphasis on Copper and Amethyst!
Ben 10 Classic Datapack
Become a hero with this datapack!
Classic Combined
This mod creates a Classic Minecraft/Modern Minecraft hybrid experience. Recreates modern features in a Classic Minecraft/Alpha Minecraft style. Fully Survival compatible
Pirate Adventures
Pirates is a huge project for the Minecraft game in the form of a DataPack. By installing the required ResourcePack and the DataPack itself, you get a large number of new mobs, items, blocks, mechanics, and bosses.
Origins: Giant and dwarf
this mod adds the Giant and Dwarf origins from the More_origins mod