If there were a genre of fiction that I enjoy above all other reading matter, it would be philosophical fiction. Not a genre? What falls into the category? Who are its recognized authors? Where did it originate? Are we the when of philosophical fiction? It's a category applicable to fiction only via the reader's ability to process what s/he reads on a level other than superficial entertainment? Why is this important, not only to me, but to our conscious evolution as a species?
Some of the authors I've been reading lately might have some answers to these questions. I certainly see the underlying thread in all their works. And that's the beauty of fiction, or any art form really, it can really only ever be a reflection of the observer. Whether the observer is the creator, co-creator through the act of perceiving, or simply subject of the art object.