Mod Mash Splinter for Undergrounds + Subways, Now you can go underground and expand your base in multiple dimensions
Mods introducing new content into the game.
Map generation and terrain modification.
Everytime i place an underground shaft it says "Not allowed" But why?
Every time? cannot place if something blocking way above or below. The ones with a 1 on them can be placed on nauvis or first level. Ones with 2 on first and second level.