{ "format_version": "1.13.0", "minecraft:biome": { "description": { "identifier": "desert_mutated" }, "components": { "minecraft:climate": { "downfall": 0.0, "snow_accumulation": [ 0.0, 0.125 ], "temperature": 2.0 }, "minecraft:overworld_height": { "noise_params": [ 0.225, 0.25 ] }, "minecraft:surface_parameters": { "sea_floor_depth": 7, "sea_floor_material": "minecraft:gravel", "foundation_material": "minecraft:stone", "mid_material": "minecraft:sand", "top_material": "minecraft:sand", "sea_material": "minecraft:water" }, "desert": {}, "monster": {}, "mutated": {}, // "overworld" tag cannot be present in order to match legacy behavior, but is // required for correct world generation -- hence: overworld_generation "overworld_generation": {} } } }