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Version: 1.21.x

Default World Type

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A client-side mod that allows modpack creators to pre-define default world presets for streamlined world creation.


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This mod is primarily intended for modpack creators. Regular players who only want to combine a few mods usually don't need itβ€”unless they frequently create worlds with a specific world preset.

Helper Files​

When you join a world, the mod will automatically generate two files:

  • <instance>/config/defaultworldtype/world-types.txt
  • <instance>/config/defaultworldtype/biomes.txt

These files list all possible values for the configurations.

World Types​

To set a default world preset, choose a value from the file world-types.txt and update the configuration world-preset. The selected preset will automatically be applied when players access the world creation screen.

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In the config file, you can also choose to disable the preset selection button. This way, no other world type can be chosen.

If you also want to allow specific world types, you can use the allowed-world-types config by adding all world types to this list that should be selectable. However, all other presets will still be available when the user presses the Alt key, as in vanilla.

World Type Specific Settings​

Flat​

In the flat-settings, you may set the generator settings for the flat world type. You can find more information about the syntax on the Official Minecraft Wiki page.

Single Biome​

You can set the biome for the single biome world type using the single-biome-biome config. You find all biomes in the biomes.txt file.