Left 4 Dead is a first-person shooter video game developed and published by Valve Corporation. The game uses the Source game engine, and is set in the fictional city of Mercy, Pennsylvania, in the United States. It was released for …
Left 4 Dead 2 is a cooperative first-person shooter video game developed and published by Valve Corporation. The sequel to 2008’s Left 4 Dead, the game was released for Microsoft Windows and Xbox 360 in November 2009, and for OS …