Minecraft Java 1.21 Mods
Browse 97 free mods for Minecraft Java 1.21 — popular picks include Zombie Extreme, TravelerZ, Stellarity.
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Zombie Extreme
This is a Big Mod that adds a bunch of new mechanics and a large number of zombies and infected to your minecraft world. In order to study a new biome, you need a Chemical Protective Suit, if you do not break at least one part, most of the radiation will i
TravelerZ
Adds titles while traveling through biomes to show the average level of mobs as an addon for the nameplate mod
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.
Click Villagers
Click to pick up villagers, reset their trades, change their biomes, claim them and much more!
Gigeresque
Gigeresque is a horror-themed mod that offers players a dive into the horrific biomechanical world of the xenomorphs, and the mutated realms of the neomorphs, deacons, and goo mutants.
No Man's Land
An uncompromising Overworld Overhaul, Enhancing world generation in every biome and environment.
Auto Warden Subtitles
This mod automatically turns on subtitles when entering the Deep Dark biome, making it easier to detect any nearby Wardens or other entities.
Cavernous
Cavernous is a datapack that brings many new biomes and features to the caves of Minecraft while maintaining a vanilla like feeling.
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..
LocalizedFishingTables
Biome specific fishing loot

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...

Crimson Curse: Infection
A virus dormant in the Crimson Forests of the Nether escaped to the Overworld. Now with access to water, it began evolving into horrors one could only imagine....
Biome Tag Villagers
Changes Villager Types to use Tags instead of just Biomes!
Nasir's Mobs Plus
Adds more mobs based on the biome! and maybe some more evil ones...
[Cobblemon] Jet's Biome Besties
A Cobblemon Addon that is dedicated to adding cosmetic variants for pokemon dependant to specific biomes/climates!
Settling Trader
Converts wandering traders into villagers as a way to populate new villages with different biome variants
Better Birch Forest
Better Birch Forest adds new vegetation and more Saturatet colors to the Birch Forest. Also it adds Fireflys
Outer End Wilds
Adds Two New End Biomes inspired by Minecraft Dungeons
Cobblemon SnomFix (AllTheMons)
Datapack that fixes a couple Cobblemon spawn biome configs.
Sulfur Depths
This mod adds a new biome boiling caves and a new mob - sulfur slime with unique mechanics and items to the game
Rhyme PVZ
This is an impressive PVZ module which will include most of the plants and zombies from PVZ 1 and PVZ 2, with new mechanics and gameplay.
Klsts' Monsters
Adds some monsters and mechanics to increase difficulty
RealisticSeasons
Premium multi-world seasons plugin with biome-aware weather, persistent temperature preferences, crops, mobs, and immersive effects.
Salinity
A New Cave Biome, a New Armor, a New Mob, and more.
Cool End
This mod adds new biomes, structures, mobs and resources to the End and Overworld, expanding exploration and improving gameplay and visuals.
XxCreeperxX's Zombie Expansion
A mod that adds various types of zombies, blocks, items, dimensions, mechanics and more
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.
World Expansion
This mod upgraded vanilla biomes and adds new ones for a more interesting journey around the world! Update 1.0.0 - Savanna and Dark Forest
MC-Themed Powers
Adds special abilities you can unlock in survival Minecraft. Each power is based on Minecraft mobs/biomes.
Theosis
Plugin-ready RPG survival with loot, gems, bosses & biomes. Thesis-style modularity. Multilanguage Apotheosis-inspired
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.
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
Configurable Difficulty
A server-side Minecraft mod that adjusts entity attributes based on their biome, dimension, and depth
AMR Bot
AMR stands for Automatic Modular Robot. A Robot-themed datapack. Explore new biomes, discover diverse modules, and assemble your own modular robot in Minecraft
Desolate Pale Garden
A datapack which removes all hostile mob spawns in the Pale Garden except the Creaking, which adds to the ambiance of the biome!
Canopy
Adds rainforests to Minecraft including 3 new biomes, rainforest mobs and more!