

Stay within the size of your Minecraft version.(We suggest using a flat world with no generated structure and use creative mode. However, since Minecraft 1.16.x, Mojang has increased the maximal size for 48x48x48 blocks.Follow the steps below to build and export your ".NBT" structure file. Structure blocks allow to create structures of 32x32x32 blocks. I recommend setting this to around 0.2.You will learn the fundamentals for creating a basic structure using MCreator in this guide. "Biome height variation" determined the amount of height fluctuation that will be present in your biome. I would recommend leaving this to 0.1 for a plains-esque biome, or 0.3/0.4 for a particularly hilly biome. "Biome base height" determines the average height of the biome. Set this to whatever you think fits best. "Biome parent" does not determine much in the current version. "Biome category" determines the category of the biome. This is used for spawning your biome near similar ones, such as ICY biomes spawning near Snowy Taiga, etc. "Biome type" determines the type of your biome. If you set it to 0.5 it will rain a regular amount. "Raining possibility" determines the possiblity of rain in the biome. "Biome weight" determined how often the biome will spawn, the lower the number the rarer the biome. If false, this biome will not generate in the overworld. "Generate biome in overworld?" This setting is self-explanatory. Do not put any custom entities in this list if you have any. Here you can choose which entities to spawn in your biome. "Particle spawn probability" determines the chance that a particle will spawn each tick.

"Particle type" determines the appearance and behaviour of the particle. Note that players with low video settings may not see these much if at all. "Enable particles" determines whether or not particle effects will spawn randomly in the biome. "Mood sound delay" is the delay for the above mentioned setting. "Mood sound" is similar to the above setting, but with a configurable delay. "Additions sounds" allows you to choose a sound that will play occasionally while in the biome, similar to cave sounds. I recommend leaving this blank, lest it gets annoying. "Ambient sound" allows you to choose a sound that will play on repeat in the biome. "Biome music" allows you to specifically choose music that will play occasionally when the player is in your biome. It is very self-explanatory, and I do not feel I need to cover it in this guide. In this page you can toggle settings that determine which structures will appear at random in your biome.

"Underground block" defines the soil layer of the ground, between the grass layer and stone. You can make this whatever you'd like, but I'd recommend grass blocks. This is often grass blocks in overworld biomes, with the exception of mycelium in mushroom biomes and podzol in mega taiga biomes. "Ground (grass) block" defines the top layer block of the ground. This guide may also work for future versions or some forks of MCreator, but try to use your initiative if something doesn't line up exactly. This guide will cover all aspects of biomes Minecraft Forge 1.16.4 as of MCreator version 2021.1. The current MCreator guides are not very centralised so I thought I'd make some myself.
