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Regions Unexplored allows you to selectively enable or disable any biome through the common configuration file. This is useful for customizing your world generation experience or resolving conflicts with other mods.

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Configuration file

Biome toggles are stored in: 
config/regions_unexplored-common.toml
Biome toggle changes require world regeneration or exploration of new chunks to take effect. Existing chunks will retain their original biomes.

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Overworld biomes

The mod adds 62 unique overworld biomes. Each can be toggled independently:

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Cave biomes

Regions Unexplored adds 5 unique cave biomes:

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Nether biomes

The mod adds 5 custom nether biomes:

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World generation features

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Configuration examples

config/regions_unexplored-common.toml
[overworld_biome_toggles]
# Disable desert biomes
TOGGLE_JOSHUA_DESERT = false
TOGGLE_SAGUARO_DESERT = false
TOGGLE_ICY_DESERT = false

# Keep other biomes enabled
TOGGLE_BAOBAB_SAVANNA = true
TOGGLE_RAINFOREST = true
Changing biome toggles only affects newly generated chunks. Existing chunks will retain their original biomes. To see changes, you must either:
  • Generate a new world
  • Explore new, previously ungenerated chunks
  • Use external tools to regenerate existing chunks (advanced)

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Tips and best practices

Performance optimization

Disabling biomes you don’t want can slightly improve world generation performance and reduce conflicts with other mods that add similar biomes.

Mod compatibility

If you’re using multiple biome mods, you may want to disable overlapping biomes to prevent world generation from becoming too crowded or to maintain a specific theme.

Testing changes

Create test worlds to verify your biome configuration before applying it to your main save. Use creative mode and /locatebiome commands to check biome generation.

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