World Presets
World presets define complete world configurations that appear in the "World Type" dropdown during world creation. They specify which dimensions exist and how each generates terrain. Vanilla presets include Default, Superflat, Large Biomes, Amplified, and Single Biome.
Custom world presets let you offer players pre-configured world types with your custom dimensions, terrain, and biomes.
Reference: World preset
World Preset
A world preset defines the complete dimension configuration for a world. At minimum, it should include an Overworld dimension, but can also customize or replace the Nether and End, or add entirely new dimensions.
Basic Example
Custom Dimension in Preset
Flat Level Generator Preset
Flat level generator presets appear in the Superflat customization screen, offering quick-select layer configurations. Vanilla presets include Classic Flat, Tunnelers' Dream, Water World, and Redstone Ready.
Reference: Superflat - Presets
Flat Generator Layers
When using a flat generator in a dimension:
