Lv223 only city?

First off I loved Prometheus, loved Alien, really liked Aliens, have grown to like Alien3, especially for killing off the cutesy family idea, but that is too many topics.....what I'd like to ask is why is this the only city populated in LV-223? Wouldn't it be similar to earth where the entire planet is populated. So wouldn't David's destruction just destroy this one area? What about the rest of the planet, or did it end up being like the walking dead and cause a world wide epidemic? I love Ridley Scott for producing the back story of the engineers, and or the civilian version of these beings that are possibly shown in the prologue, but I think he would be wrong in thinking people only are interested in the xenomorphs. I love the mythology and the world created. I love ancient alien theory so I think an entire set of movies could be created around this race of creators, warriors, whatever they may be.




