I didn't know where to put this or if this has been ask before or even if this is a stupid question, but can you create build spaces? I'm not sure how to explain this, so I'm just going to tell you my idea. The host makes 1 long street. Then anyone who joins the server is assigned a square (I forget the size, something like 32x32 or something) and the player's job is to build a building in that square on the street. You can use as little or as much of that square as you want, but you can't go over your boundery. You can make the building as tall as you want, but you can only make 1 building. Then you get a bunch of people to build there building and after a while, you have a whole city full of unique buildings.