<P> The story is set in the 31st century , in a world where humans have regressed to primitive tribal societies as a result of some unspecified calamity . Their technologically advanced predecessors are vaguely remembered as the `` Old Ones . '' Large robotic creatures known merely as `` machines '' now dominate the Earth . For the most part , they peacefully coexist with humans , who occasionally hunt them for parts . However , a phenomenon known as the `` Derangement '' has caused machines to become more aggressive towards humans , and larger and deadlier machines have begun to appear . There are three tribes that are prominently featured : the Nora , the Carja , and the Oseram . The Nora are fierce hunter - gatherers who live in the mountains and worship nature as the `` All - Mother . '' The Carja are desert - dwelling city builders who worship the Sun . The Oseram are tinkerers known for their metalworking , brewing , and arguing . </P>
<P> The story is set in the 31st century , in a world where humans have regressed to primitive tribal societies as a result of some unspecified calamity . Their technologically advanced predecessors are vaguely remembered as the `` Old Ones . '' Large robotic creatures known merely as `` machines '' now dominate the Earth . For the most part , they peacefully coexist with humans , who occasionally hunt them for parts . However , a phenomenon known as the `` Derangement '' has caused machines to become more aggressive towards humans , and larger and deadlier machines have begun to appear . There are three tribes that are prominently featured : the Nora , the Carja , and the Oseram . The Nora are fierce hunter - gatherers who live in the mountains and worship nature as the `` All - Mother . '' The Carja are desert - dwelling city builders who worship the Sun . The Oseram are tinkerers known for their metalworking , brewing , and arguing . </P>
when is the story set in horizon zero dawn
when is the story set in horizon zero dawn
the 31st century
the 31st century