 Middle @-@ earth : Shadow of Mordor is an open world action @-@ adventure video game set within Tolkien 's legendarium , developed by Monolith Productions and published by Warner Bros. Interactive Entertainment . Officially announced in November 2013 , it was released for Microsoft Windows , PlayStation 4 , and Xbox One in September 2014 and released for PlayStation 3 and Xbox 360 in November 2014 . 
