ANTihilation
(writing for fun, will take breaks between chapters until contracted)
The earth has been shrouded in darkness for centuries now. Beings of obscure origin have caused humanity to cower and cluster together.
Multiple "hills," as they call them, have been constructed around the globe. Since this one-sided war started, it sent humanity back ages, guns are irregular, and good medicine is even rarer.
It's challenging to lead a fulfilling life in this era; it no longer matters whether you are rich or poor. Everyone is the same now; all they want to do is survive.