Today Sierra announced two separate expansions to its spooky first-person shooter, F.E.A.R. For the PC version, the Perseus Mandate expansion gives players a new angle on the events at Armacham with a new team. The story runs parallel to the original's and includes new enemies.

On the Xbox 360, F.E.A.R. Files includes both of the expansions that have been made available for the PC version: F.E.A.R. Extraction Point and Perseus Mandate.

Look for more details on Perseus Mandate and F.E.A.R. Files from the show floor here at E3 2007.