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Minecraft Java 1.21 Mods

Browse 13 free mods for Minecraft Java 1.21 — popular picks include Oh The Trees You'll Grow, WorldWeaver: New Dawn, Ars Monde Lib.

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Oh The Trees You'll Grow
1.21.11neoforge

Oh The Trees You'll Grow

Tree library used by popular mods such as Oh The Biomes You'll Go.

7.1Mdownloads
WorldWeaver: New Dawn
1.21.11fabric

WorldWeaver: New Dawn

An unofficially maintained continuation of the BetterX Team's utility library for Fabric and NeoForge, designed to streamline common modding tasks, especially those related to world generation

538kdownloads
Ars Monde Lib
1.21.1neoforge

Ars Monde Lib

Content library for Ars Monde

75kdownloads
Modified Biome Source
1.21.11neoforge

Modified Biome Source

Add modified biome sources that can be configured.

8.8kdownloads
Biome Squisher
1.21.1fabric

Biome Squisher

A library mod for adding biomes by "squishing" other biomes out of the way

2.9kdownloads
Biome Modifier for Fabric
1.21.2fabric

Biome Modifier for Fabric

A library mod that allows users utilize datapacks to modify biomes easily and compatibly.

1.1kdownloads
better mob : jungle expansion
1.21.1neoforge

better mob : jungle expansion

Better Mob: Jungle Expansion transforms Minecraft jungles with animated creatures, dangerous predators, immersive wildlife, GeckoLib animations, tropical atmosphere, rare mobs, jungle structures, and realistic exploration adventures.

501downloads
Mansioneer
1.21.4neoforge

Mansioneer

Adds biome-specific variants for Woodland Mansions; easily expandable with data packs!

464downloads
Trillion O Trees
1.21.1neoforge

Trillion O Trees

An overworld mod adding many more tree types and forests... some added structures too

288downloads
Regions Unexplored Biome Book Compat
1.21fabric

Regions Unexplored Biome Book Compat

This mod adds the regions unexplored biomes to the biome book mod.

251downloads
Aran's Discord Presence
1.21.11fabric

Aran's Discord Presence

A lightweight, customizable Discord Rich Presence mod for Fabric. Features a built-in settings menu to toggle Server IP, biomes, dimensions, and player heads on your Discord status.

178downloads
Craftics - Grid Based Tactical RPG
1.21.5fabric

Craftics - Grid Based Tactical RPG

We turned Minecraft into a full fledged tactical RPG! Gone are the days of exploring a world in first person, now you must enter new biomes and defeat enemies to gain resources all in a grid turn based RPG experience!!

2.8kdownloads
Biomorphosis Mod (1.21.4, 1.21.1) – Command a Mutating Swarm to Build a Living
1.21.4

Biomorphosis Mod (1.21.4, 1.21.1) – Command a Mutating Swarm to Build a Living

Biomorphosis Mod brings a living, mutating ecosystem into your world. This mod lets you control a collective mind called the Swarm. You gather biomass to build organic structures and spawn new creatures. The world changes as insect villages and new biomes appear around you. You must decide whether to fight this growing nightmare or become […]