Changes

I personally love finding old abandoned [[settlements]], but they lack a certain... something. [[Paving]] lasts forever (or until someone destroys it) and [[fence]]s/[[wall]]s simply disappear once they [[decay]].

* Or 1 or 2 [[rock shards]] from a ruined [[stone wall]].

[[Paving]] is another thing. [[Tile]]s are either there or not so they can't have incresing levels of [[damage]]. But everyone knows that if you leave [[dirt]] alone it will become [[grass]] soon enough. The same goes for [[packed dirt]] (although it seems to take longer).

* Maybe 0.1% per day of [[gravel]] becoming [[mostly gravel]] or a [[mostly gravel]] becoming [[packed dirt]].

* It would only take maybe 2kg of [[rock shards]] to [[paving|pave]] a [[mostly gravel]] into a regular [[gravel]].

This could be even less likely than that if it becomes impossible to maintain big roads... but I think that having to repair roads like we do for [[wall]]s and [[fence]]s would make sense. And all this of course would mean abandoned [[settlement]]s would be reclaimed by the wilderness a little bit more... which I think would be nice.