Why is Fallout 3s architectural style based on the 50s?
The look of the game isn’t based on the 50’s, it’s based on Science Fiction from the 50’s, which was inevitably the 50’s culture imagined into the future, really an alternative time line, or other dimension, not based on our reality, but based on the imagination of those in the past, the feel-good Leave it to Beaver type mentality in the face of nuclear annihilation. Welcome to the world of tomorrow!