Left 4 Dead
Left 4 Dead (abbreviated as L4D) is a cooperative first-person shooter video game with survival horror elements, developed by Turtle Rock Studios and Valve Corporation. The game uses Valve's proprieta...
Nonlinear gameplay
A video game with nonlinear gameplay presents players with challenges that can be completed in a number of different sequences. Each player sees only some of the challenges possible, and the same chal...
Left 4 Dead (series)
The Left 4 Dead franchise is based on a series of cooperative first-person shooter, survival horror video games developed by Valve Corporation. Set in the days after a pandemic outbreak of a viral str...
Left 4 Dead 2
Left 4 Dead 2 is a cooperative first-person shooter video game and the sequel to Valve Corporation's award-winning Left 4 Dead. The game launched on November 17, 2009, for Microsoft Windows and Xbox 3...
Office of Film and Literature Classification (Australia)
The Classification Board (CB) is an Australian statutory classification and censorship body formed by the Australian Government which classifies films, video games and publications for exhibition, sal...