Sojourn
The Sojourn mod provides modpack creators with a unique ability to configure game worlds so they entirely consist of a single chosen biome. To activate this function, simply specify the name of the desired biome in the mod's configuration file.
The main feature of Sojourn is that by default, an option is enabled that prevents the user from changing the world type. This ensures that the world concept created by the pack developer remains unchanged during gameplay.
Such configuration opens up new possibilities for creating thematic adventures and unique gaming situations where the entire game landscape is formed from a single biome space.