Minecraft Java 1.21 Mods
Browse 332 free mods for Minecraft Java 1.21 — popular picks include Crying Obsidian Upgrade, Procedural Trees, Natural Compass.
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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.
Procedural Trees
This allows a builder to create a forest with custom trees in seconds by spawning a spawn egg, each tree different from one another.
Natural Compass
Natural Compass is a plugin adaptation of the popular Forge/Fabric mod Nature’s Compass by Chaosyr. It brings that mod’s biome-searching functionality to Spigot/Paper servers.
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
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
OraxenNature
OraxenNature introduces a simple way to populate your world with your Oraxen blocks.
Canopy
Adds rainforests to Minecraft including 3 new biomes, rainforest mobs and more!

Alternative Twilight(Remastered)
Added more mechanisms to the bosses of Twilight Forest, making it more time to prepare for them
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!
Arts & Crafts x Nature's Spirit
This mod adds integration features for Arts & Crafts and Nature's Spirit for a smooth gameplay experience!
huge biomes
this makes all biomes huge, even larger than large biomes biomes
NitroPlots
The Best & Newest Plotsquared Addon with Borders ✔️ Walls✔️ Member Settings✔️Flags✔️ Biomes & more!
Biomes O' Remin
Small Compatibility between Biomes O' Plenty and Realistic Minerals, adding Rose Quartz to the Quartz tags.
IWBIA
A datapack/mod that shows in action bar biome which player is in
WaterBar999
The WaterBar plugin enhances Minecraft gameplay by implementing a thirst management system that requires players to monitor their hydration levels, collect and purify water, and adapt their survival strategies based on biome conditions.
Saltcraft
A mod adding salt biomes, mobs, structures and blocks into Minecraft
MoreBiomes999
MoreBiomes999 is a Minecraft Bukkit/Paper plugin that creates a custom world called "MoreBiomes999" with beautiful glade biomes featuring unique terrain generation and natural structures.
Xenogenesis
A biomechanical horror mod inspired by Alien and Prometheus. Discover sealed underground structures, parasitic life cycles, facehuggers, and xenomorph-like organisms waiting to be unleashed.
Contentcraft
ContentCraft adds features and mechanics that expand on Minecraft while keeping the vanilla feel!
PALE GARDEN [ONLY]
replaces all biomes with [Pale Garden]
Alternative Twilight (Remastered version)
Added more mechanisms to the bosses of Twilight Forest, making it more time to prepare for them
Minecraft Compendium
Uses advancements to log information for the player. Look at mobs with your spyglass to add them to your Mobestiary, and discover biomes and structures!
Island Biomes
Let players change their island biome. Turn a plains island into a jungle, desert, mushroom fields, or any biome you configure.
Increased Jungle Saplings
Increases the drop chance of saplings from Jungle leaves
FactoryM
FactoryM is a modpack that improves the Minecraft experience in exploration (with biome mods), mechanisms (with the create mod) and also adds visual improvements such as shader compatibility
CobbleHunt
Find the best Cobblemon spawn setup for any Pokémon: biome, time, weather, platform block, and optimal bait trio.
Reforested
A Reimagining/Love letter to Forestry and Binnie's Mods for Minecraft Fabric 1.21
UltraSingleBiome
A custom world generator for Minecraft servers, optimized for Crystal PvP with an automatic Desert biome world.
Biome Bound Blocks
Certain building blocks can only be placed in their native biome, encouraging architectural harmony with the environment.
True Nature
Realistic MC is a modpack that makes Minecraft feel real. With enhanced graphics, physics, and survival mechanics, it brings a grounded, immersive experience to your world.
Superflat Structures
Lets all structures (biome dependent) generate in all superflat presets!
TwilightLuckyBlock
[DISCONTINUED] (TWILIGHT FOREST MOD IS REQUIRED!) MyLuckyBlock addon for twilight forest mod.
Visual HUD
A clean, fully customizable client-side HUD overlay for Minecraft 1.21.11 Fabric — shows coordinates, FPS, biome, time, direction, light level, speed, day count, dimension, compass, and FPS sparkline with an in-game config screen.
android vs apple
Android, Apple, Xiaomi – they all have their own unique biome
Scoobyland - Create and Friends
Discover a lightweight, multiplayer-optimized modpack that supercharges your vanilla Minecraft into vanilla+++ experience! Dive into Create’s innovative mechanics, explore vibrant new biomes, and savor Farmer’s Delight for a fresh adventure.
Halloween Storm
With a single command, enable ravageous tornadoes, ghasts invasion in the overworld, ghosts (new mob), Herobrine and forbidden forests. Compatible with worldgen datapacks!