I enjoy any story in which the entire world is destroyed. So I'm enjoying "Alas Babylon" (1959).
I do wonder though, if at some point in the story, one of the many female characters will do something useful or intelligent.
Maybe that'll be the twist ending.
This is a rather amazing cover art, though.
I imagine this one guy is going to save everybody ... who is apparently just standing around.
Octodon is a nice general purpose instance. more