Regions Unexplored

Regions Unexplored (jar RegionsUnexploredFabric-0.5.6+1.20.1.jar, by UHQ_Games with contributions from KirboSoftware and Loxi) is a large Overworld biome-expansion mod — its own description says “almost 70 new biomes,” and the server’s config file (config/regions_unexplored/regions_unexplored-common.toml) confirms 82 individual biome toggles, essentially all left at their default true. The added biomes range from familiar-sounding variants (Boreal Taiga, Cold Boreal Taiga, Frozen Pine Taiga, Cold River, Gravel Beach, Grassy Beach) to genuinely novel terrain types: Fungal Fen, Hyacinth Deeps, Mycotoxic Undergrowth, Scorching Caves, Redstone Hell, Bayou, Joshua Desert, Baobab Savanna, Rocky Reef, Tropical River, Willow Forest, Eucalyptus Forest, Bamboo Forest, Smouldering Woodland, Redwoods, Towering Cliffs, Mauve Hills, Outback, Arid Mountains, Highland Fields, Alpha Grove, Barley Fields, Orchard, Temperate Grove, Clover Plains, Rainforest, and more.

The only feature disabled in config is toggle_custom_regions = false — an unrelated experimental “custom regions” system, not a biome. Every actual biome toggle is on, so this pack runs Regions Unexplored at essentially full breadth. The mod also ships several regions_unexplored-secondary-region-*.toml.bak files (disabled/backed-up secondary region configs), suggesting the region-layering system beyond the primary/common config isn’t actively customized here either.

Anticipated questions

Q: How many biomes does it add? A: Almost 70 by its description; the config confirms 82 biome toggles, essentially all left at true, so it runs at near-full breadth. Locate specific ones with Nature’s Compass / Finding Structures & Exploration.

Q: What kinds of biomes? A: From familiar variants (Boreal Taiga, Cold River, Gravel Beach) to genuinely novel terrain — Fungal Fen, Hyacinth Deeps, Mycotoxic Undergrowth, Scorching Caves, Redstone Hell, Bayou, Baobab Savanna, and many more.

Q: Is anything disabled? A: Only toggle_custom_regions = false — an unrelated experimental “custom regions” system, not a biome. Every actual biome toggle is on.