Minecraft Java 1.21 Mods
Browse 316 free mods for Minecraft Java 1.21 — popular picks include The Minecraft (wikidot) Backrooms, ModernMITE, Simple Seasons.
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The Minecraft (wikidot) Backrooms
A mod that aims to make the biggest lore accurate Minecraft backrooms experience. THIS IS BASED OFF OF THE WIKIDOT.
ModernMITE
ModernMITE is a fork of MITE Equilibrium — a 1.21.1 port of the classic hardcore survival mod Minecraft Is Too Easy (MITE).
Simple Seasons
Adds a simple season system.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).
Acid Wasteland
A wasteland theme datapack with acid rain, mutated mobs and many other features.
Animal Husbandry
Deeper livestock gameplay with animal care, genetics, sickness and breeding traits
Doesn't This Count as Being Burned to Death?│這不算燒死嗎?
Animals killed by Magma Blocks or Campfires will also drop cooked meat.│被岩漿塊或營火燒死的動物也會掉落熟肉。
Niobium
A mod that adds features that should be in Vanilla.
Salinity
A New Cave Biome, a New Armor, a New Mob, and more.
Survival Reimagined (NeoForge)
A Minecraft Mod with the goal of making Minecraft harder with a more realistic approach at progression
Advancement Tracker
Detailed, real-time progress tracking for Minecraft's grindiest "collect them all" advancements — see exactly which biomes, mobs, foods, and animals you still need. Opens with a keybind (default J).
Diary of an 8-Bit Warrior
Experience Aetheria like a Terrarian! Complete quests, kill bosses, and level up your skills! Maybe you'll even meet Runt and his friends…
Potatomod
The potatomod is a funny and unlogical mod.
Cool End
This mod adds new biomes, structures, mobs and resources to the End and Overworld, expanding exploration and improving gameplay and visuals.
Dimensions+
Enhance your adventure with new features, creatures, and challenges in this Minecraft mod.
Rideble Dragon Mount
Dragon Mount, new hostile dragon, new end slime. Happy Dragon.

Renourished Delight
A refreshed food system compatible across a wide range of food mods.
Creatures Dominion
This is a mod that will have a lot of animals and even extinct ones. It is not released yet and neither finished. Please give suggestions and report bugs to me please! I hope you enjoy the mod!
More Villages Datapack
Adds more villages to the game.
Kopeyka's Bunker Mod
A mod about nuclear and bunker things.
Gelaria
Frozen world dimension + many ice and snow variants, including slabs, stairs and walls, new creatures and unique game mechanics.
Kappa's AntiCheat
A lightweight Fabric anti-cheat designed for high performance on large-scale servers.
The Sweetland
This mod adds a new explorable dimension to the game, The Sweetland, a world where almost everything is made out of candy.
Architect's Buddies - Cobblemon Shoulder Perks
Shoulder Perks are BACK! Tired of working alone? Now your shoulder Pokémon are (again) more than a pretty face, they are your co-workers!
Wild Wonders
A Beta mod that improves world generation and adventure!
Deepcraft
A hardcore Minecraft mod with new ore, weapons, bosses, mobs, a unique dimension, haunting music, and forgotten secrets waiting to be uncovered.
Farms
Increase crops growing speed, autocollect crops. Collect drops near the minion and more
FZero Drops
A adventure focused datapack I made for personal use. I just wanted to make it available to others.
More Passive Mobs
More Passive Spawns increases the amount of passive animals in your world by periodically spawning small groups of sheep, cows, pigs, and chickens in the Overworld. The datapack stays vanilla-friendly while making the world feel more alive and natural.
Ben's Monster Energy Mod
All the Monster Energy you could ever want... and Beer too for some reason.
Aquatic Plugin
This is a Minecraft Plugin wich adds many Ocean and Fish releated things to Minecraft
Giant Boss
Makes the unused giant into a boss fight and adds a new food as a reward.
Canadian Content
Beavers and moose with unique behaviours, cooking pot for crafting new foods, tapping trees for maple syrup, thermos for better soup
Crying Obsidian Upgrade
Crying Obsidian Upgrade --- A mod that adds a lot of items, food, mechanics. Also adding a new biome, ores and mobs changing the idea of weeping obsidian. The mod also fills the world with different structures.The mod is filled with different content.
Omni-Archive
The content is based on Ben 10 Omniverse,The Cartoon Network Series.
NeoPasterDream
Also known as the NewPasterDream, it is a port of the original mod to the 1.21.1 NEO loader, and has been restructured to make it more oriented towards adventure themes.