Field Name	Field Notes
Indicates if this world was created from a template.	For servers this should always be false.
Indicates if this world is a template with locked settings.	For servers this should always be false.
Only spawn v1 villagers	This was added for the Village & Pillage update, marking worlds where V1 villagers shouldn't update to V2, and only V1 villagers should be used in the world. This was done for Marketplace content.
Base Game Version	Version of vanilla gameplay that will be used with this world.
Override force experimental gameplay has value	For servers this should always be false