so i offer this link to rajan khanna's more coherent post about post-apocalypticness in general. i don't know quite a few of the books and games khanna references, but i have read the road and am waiting more or less eagerly for the film version to be released -- i'm suspicious about the son because i'm always suspicious of young actors, but viggo mortenson is about the most perfect piece of casting i could have thought of.
i would have thought piers anthony on the whole was a little too "sunshine and bunnies" to do a proper post-apocalypse but i could be wrong and i haven't read any of his stuff since before i was in high school. i remember thinking that night mare was just about as funny as it got when i was 12 or so. i picked it up in a used bookstore sometime in college and really quickly put it down again! "did not age well" just about describes it.