Serious Sam 3: BFE is a first-person shooter video game developed by Croatia-based indie development studio Croteam and published by Devolver Digital. It is part of the Serious Sam series and the prequel to Serious Sam: The First Encounter. The game takes place in 22nd century Egypt, during Mental's invasion on Earth, as implied in The First Encounter. The game features a 16-player online, as well as 4-player splitscreen co-op campaign mode. The game was first released for Microsoft Windows on 22 November 2011. The OS X support for the game followed shortly after and was released on 23 April 2012. The Linux version of the game started being worked on after a high amount of requests, where the first Linux-related update was the porting of the game's dedicated server. The game itself, howeve