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TerraBlender Mod Wiki & Guide

Guides 4FAQ 20Related mods 60

A world-generation library that lets biome mods inject custom biomes and region layouts into the overworld and other dimensions.

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Contents (6)
  1. Overview
  2. Guides
  3. Frequently asked questions
  4. Dependencies
  5. Gallery
  6. You May Also Like

Overview

TerraBlender is a specialized library mod developed by TheAdubbz (Glitchfiend) designed to simplify the process of adding biomes to Minecraft. Since the overhaul of world generation in version 1.18, adding biomes has become significantly more complex due to the multi-noise system. TerraBlender acts as a bridge, allowing modders to register biomes in the Overworld, Nether, and End without having to manually calculate intricate noise parameters or risk compatibility issues with other mods.

As a library mod, TerraBlender does not add any gameplay content like items, blocks, or mobs on its own. Instead, it provides the backend infrastructure required for popular world-generation mods such as Biomes O' Plenty, Oh The Biomes You'll Go, and Regions Unexplored to function correctly. It ensures that modded biomes blend naturally with vanilla terrain and each other.

Guides

Step-by-step, in-game.

How to Add TerraBlender Regions to a Custom DimensionWhy Dimensions Need Extra Setup TerraBlender's overworld injection is automatic once biome mods register their…How to Diagnose Missing Biomes After Installing TerraBlenderFirst Checks Before Blaming TerraBlender TerraBlender is a library — it does not add biomes by itself. If biomes from…How to Fix Biome Conflicts and Overlapping Regions with TerraBlenderUnderstanding Why Conflicts Happen TerraBlender works by letting multiple biome mods register their own *regions* —…How to Tune Region Weights So One Biome Mod Does Not DominateWhat Region Weights Control When several biome mods register regions through TerraBlender, each region has a weight…

Frequently asked questions

What does TerraBlender actually do if it doesn't add any biomes itself?
TerraBlender is a library that lets other biome mods register their biomes and place them into the world's region layout, so it has no content of its own. If you installed it alone, nothing will look different until you add a biome mod that depends on it.
How do I know if a biome mod needs TerraBlender?
Check the mod's dependencies on its project page or in your mod loader's mod list; biome mods built on TerraBlender list it as a required dependency. If you launch without it, those mods will usually crash or fail to load their biomes.
Do I need to create a new world after adding TerraBlender and a biome mod?
Yes, for the new biomes to appear in already-generated chunks you generally need a fresh world, since terrain is generated once and saved. Existing chunks keep their old biomes, though newly explored chunks in the same world may pick up changes depending on the mod.
What is a region in TerraBlender and why should I care?
A region is a large-scale area of the world that controls which biomes can appear where, layered on top of vanilla's biome placement. Biome mods register their biomes into regions, and conflicts or overlaps between regions are what cause missing or clashing biomes.

See all 20 TerraBlender questions ›

Dependencies

Other mods needed to run this one.

Fabric (required)