Sierra Entertainment today announced F.E.A.R. Perseus Mandate, an all-new stand-alone expansion pack for Windows PC which offers the ability to jump-in and experience the fright with a brand new team in an all-new experience that presents a different perspective of the events that occur at Armacham. The campaign reveals a parallel story allowing players to take the role of a different F.E.A.R. soldier and battle new enemies that the original team never saw coming. Sierra also announced F.E.A.R. Files, a complete stand-alone expansion pack series for Xbox 360 featuring the all-new F.E.A.R. Perseus Mandate campaign, as well as F.E.A.R. Extraction Point. Both products are scheduled to ship this fall - the first screenshots from FEAR Files have been inserted in our gallery.