For Minecraft 1.12+, based on UndergroundBiomesConstruct CurseForge : https://minecraft.curseforge.com/projects/underground-biomes
LemADEC/UndergroundBiomesConstructs
Underground Biomes Constructs for Minecraft 1.12.2 [UBC_FORK]
JavaNOASSERTION
Underground Biomes Constructs for Minecraft 1.12.2 [UBC_FORK]
JavaNOASSERTION
For Minecraft 1.12+, based on UndergroundBiomesConstruct CurseForge : https://minecraft.curseforge.com/projects/underground-biomes