[Mod Request] Urban Enviroments

[OtioseNexus]

I was looking at the Rimworld menu screen and a thought occured looking at the background image. Theres a clear line on the planet leading to what looks like a series of walls/ruins/houses/something, that combines with the dark splodges one could almost mistake for the sprawl of a massive city.
"What if.." as all good sci-fi thoughts should go, "you could crash land on a planet that once was covered with thriving cities?"

So I started to wonder if it would be possible to mod this into Rimworld. It would have to take part in world gen, basicly biomes of 'old cities'. If thats possible then map gen could generate densely pack buildings across most of the map. I know map generation is possible and you could have a lot of real fun with that. It'd add a nice twist to survival too, you would be more reliant on scavaging, farmable land would be much rarer and animals would be a lot rarer, mostly being small mammals (rats, boomrats, squirrels etc). You'd have to balance your crops early game to make sure you get enough food since arable land is at a premium.

To balance the fact that there would be a lot of resource from most walls you could make unique walls for the world gen, old-world construction that provides little when broken down, meaning you'd likely prefer to just board up what you could to begin with. Old machinary would be your main way of collecting metals etc. There could be reminants of how this old city fell, like craters, unexploded bombs, destroyed military vehicles, zombies, mutants, xenos.

I'm not much good with coding, my approach is 'blunt force trauma until it wields', but I'm not a bad hand at art if anyone wants to take up this request and needs a hand with sprites etc.