Adds the ability to dig the underground, move item and fluids between surfaces and blow away pollution.
Mods introducing new content into the game.
Map generation and terrain modification.
New Ores and resources as well as machines.
I'm playing on BNW. Can't send items to subsurface. No change in item elevator. I can't expand no way to dig without player character.
I found how to expand with deconstructor and selecting wall item. With robots i can go more far.