Underground Biomes Constructs [1.7.2] [1.6.4]
Mod modifies the caves in the game, adding underground biomes and new blocks, from which these biomes will consist.
How to install Underground Biomes Constructs Mod:
1. Download and install Minecraft Forge
2. Download mod
3. Open the file using the archiver.
Select the version of the mod and copy it
(without unpacking) to C:\Users\USER_NAME\