This version of the game has been optimized for PC and features improved graphics, ultrawide support, customizable mouse and keyboard controls, and more. Now, in 2020, it has been released for PC as part of the Halo: The Master Chief Collection. The game is the third main entry in the Halo series and concludes the original trilogy. Halo 3 is a first-person shooter game that was originally released in 2007 for the Xbox 360. Developer: 343 Industries, Ruffian Games, Saber InteractiveĮxperience the epic conclusion of the original Halo trilogy as the Master Chief fights to save humanity in Halo 3, now optimized for PC with customizable settings and updated multiplayer maps.