In the far future earths ecosystem died. Animals went extinct on an unheard of level, plants began dying from a super-fungus outbreak, killing off nearly any biological life, except for humanity. We created sub-species, branches of the human race who were not sentient in any case. creating animals out of human genetics, mockery's of the human form. Society collapsed. These animals run wild, and sentient humans are a dying breed. Now comes the age of the sub-races.