206X. 400,000,000+ humans remain on Earth, as the Earth slowly succumbs from the wounds left from an invasion from the stars. The atmosphere is filled to the brim with toxic gases, forcing the remaining population to contain themselves in makeshift hazmat suits. Meanwhile, an autocratic government soon rises to power, controlling the globe, and plunging the remnants of humanity further into oblivion.

Life is different now.

(tl;dr: shit's fucked, yo.)