F.E.A.R. Online will focus on several team combat modes spanning over ten ominous maps packed with grotesque details such as still-twitching bodies hanging from meat hooks and messages smeared in blood. The battle rages between Armacham Technology Corporation (ATC) and the elite F.E.A.R. team. F.E.A.R. 3ís unique Soul King mode also makes a return, challenging players to possess enemies for new abilities and collect more fallen souls than their opponents.
The story also continues in cooperative scenarios that detail the terrifying occurrences surrounding the F.E.A.R. team parallel to the events of F.E.A.R. 2: Project Origin. Up to four players can team up and fight for their lives against both hostile Armacham personnel and hideous monsters lurking around every corner.