F.E.A.R. Online was a free-to-play multiplayer game. As with F.E.A.R. Combat, the player had to be registered on the official website to get an activation code and play, however in response to the large request for beta keys and some keys not working, it was made available for anyone to download and play. Unlike F.E.A.R. Combat, this game have a 4 player co-op story mode as well as single-player. PvP modes include Deathmatch and Team Deathmatch, as well as a new Horror mode and Soul King. Amongst other enemies, the game will feature swarms of Abominations, ATC Forces, Replica Forces and Remnants, as well as new enemies.

F.E.A.R. Online was a free-to-play multiplayer game. As with F.E.A.R. Combat, the player had to be registered on the official website to get an activation code and play, however in response to the large request for beta keys and some keys not working, it was made available for anyone to download and play. Unlike F.E.A.R. Combat, this game have a 4 player co-op story mode as well as single-player. PvP modes include Deathmatch and Team Deathmatch, as well as a new Horror mode and Soul King. Amongst other enemies, the game will feature swarms of Abominations, ATC Forces, Replica Forces and Remnants, as well as new enemies.