They will not come, cause it is simply not possible to display them with the current top-view of Factorio. Things "behind" should be hidden, but in truth it's just a graphical trick, that makes Factorio look a bit like pseudo-3D. But the truth is, that you even cannot rotate your view because of that. A whole city can lay in the sight-shadow of a hill and you'll never know about that.SyncViews wrote:What about using a real height map? e.g. as seen in Railroad Tycoon 2, Sim City 3000 and many more similar games and RTS's (although most really recent ones use full 3D for units and buildings).
This is already a big problem in the current game design.