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Invisible Roof Support

Allows you to install invisible bolts for 10 steel that keep up a mountain roof (or other roofs) without being seen. Can be installed on regular terrain, or shallow or deep water. Doesn't interfere with zone placement and walking, but you can't grow crops under them (unsure how to do that).

I wanted to have very large under mountain structures like the Son Doong Cave in Vietnam or even just similar to underground mines with huge interior spaces. These natural caves are much larger than the 12x12 room size maximum without supports. I couldn't find a way to modify the under mountain collapse behavior, so I made this instead as a sort of work around. It's basically an invisible version of the "Roof Support" mod.

I think of it as installing heavy duty roof support bolts used in mining or tunnel applications, installed in the roof of the cave to secure it. They can be destroyed, but it will take a while and they have a decent amount of health. Insects may attack them as well and get themselves killed, an unfortunate side effect of their limited intelligence.

Special thanks to Match, Nommy, Igabod, Minus, Shinzy, and Vas, all of whom helped make the original 'Roof Support' mod from which this is based.