Quote: "big subway segment pack"
Can be done but honestly, want to move away from every day life a bit, so scifish design, there is not a lot of that around here. I have done the mars thing, done the sewer pack, done the WWII tunnels, done another mars type tunnels set and I done the cave tunnels...
So honestly some thing totally radical is needed, ice tunnels came to mind, but meh not really suited unless you have a reflective and transparent shader to use.
Tunnels based on wood only bit risky, having wood all over the place.
I think a metal only tunnel would be worth doing.
I have been thinking about expanding on the sewers as well, they were nice and all but a little too generic for my liking.
A south American styled tunnels