Really minor one: If I reclaim a structure and fix it up, it doesn't get rid of the "build a room" hint. I did add wall pieces and a door and the game generated a roof for it, so it ought to count I guess.
Ha! this is interesting =P
apparently the requirement for a room is four blocks and a door anywhere on the map,
they don't need to even be attached or form an actual room
so if you can patch up a old ruin from less then 4 blocks and a door it's not count *shrug*
I feel *somebody* has been cutting some corners with the code!
Tynaaan?