phenomen a book

This post-apocalyptic/dark comedy takes place in the year 2220, over a century after the collapse of the rapidly advancing human society. Small groups of resilient and resourceful humans still survive, creating defenses (as well as other, less fun tools) from the various technological remnants of their long lost society. The monsters that plague them still occasionally roam the streets, though they''''ve gradually reduced in number since they''''re unable to reproduce and will often attack each other. The ones who remain, however, are significantly more dangerous.