As a rule we pick up on what is hot or popular in entertainment, and enjoying a renaissance since the 50's and 60'sis apocalyptic fiction. We see it in all forms of entertainment, Movies, Books , games and music now more than ever before.
There has always existed the dark places in our minds, and what darker, more horrifying vision than that of our everyday being taken violently from us through some global catastrophe? It plays on the public consciousness and has seeped out into our most celebrated escapes, that being entertainment.
There will always be wars, famine and hate in the world. This is a constant, but what horrors await us when each of us is forced to survive in a world unfamiliar?