I thought I would return to some low poly models of high rise buildings to see how the fps has improved over the last few GameGuru releases. it's certainly getting better.
A map of a city needs to be pretty well populated with buildings and the obvious way to achieve this without killing fps is the use of background low poly buildings. At the moment I am working on some that may be used to produce alleyways between one area of a town and another or simply used to produce a background. Rather like the film set they are just an illusion relying on the Director (game author) to set the areas the player will use. Some pictures below to emphasise my point. All the alley building and ground simply click together using Double B.
Edit: Picture 2 shows my fps still sitting at 80.