Not enough space above ground? underground has free real estate.
Mods introducing new content into the game.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Map generation and terrain modification.
Furnaces, assembling machines, production chains.
there are 4 different types, mirroring the different types of underground belts. Is there a meaningful difference between them besides range?
i needed graphics for them so i used the underground belt sprites but scaled down, figured i might as well just add one for each color, functionally they're all completely identical aside from range.
good to know!
