Superflat Generator

Customize layer blocks, biomes, and structure settings to generate custom Minecraft superflat world presets.

Data for Minecraft 26.3

Preset

#	Icon	Block	Height	Actions
3		Bedrock
2		Dirt
1		Grass Block

Current Flat World Preset (JSON)

{
  "biome": "minecraft:plains",
  "features": false,
  "lakes": false,
  "layers": [
    {
      "block": "minecraft:bedrock",
      "height": 1
    },
    {
      "block": "minecraft:dirt",
      "height": 2
    },
    {
      "block": "minecraft:grass_block",
      "height": 1
    }
  ],
  "structure_overrides": [
    "minecraft:villages"
  ]
}

Paste into the world creation settings screen or level configuration file.

Classic Generator String

3;minecraft:bedrock,2*minecraft:dirt,minecraft:grass_block;minecraft:plains;village

Legacy generator code accepted by classic client releases. Historical versions prior to format three are not supported.

How to use

Choose a preset from the catalog or build custom terrain configurations. Adjust layer heights, reorder strata using the direction controls, and select target biomes and structure sets. Copy the generated configuration text to paste directly into the world creation settings screen.

Troubleshooting

If the exported configuration fails to load in the game, verify that total height does not exceed world build boundaries and that block identifiers are valid. Clear customized layers or pick a default preset to reset the generator state.

Known limitations

Historical generator syntax from legacy game releases differs from modern flat world structures and is noted as a format gap. Custom structures require game experimental toggles when applied to non-standard dimensions.