Left 4 Dead is a multiplayer survival horror game developed by Valve South and published by Valve. The game uses Valve’s proprietary source engine and is available for Windows, Xbox 360 and OS X. Development of the game was completed on November 13, 2008, and two versions were released digitally: a downloadable digital version, released on November 17, 2008, and a recording version of digital retail, which was released by region. The digital retail release was released on November 18, 2008 in North America and Australia. and in Europe November 21, 2008.
The game was developed after a worldwide zombie outbreak and contains four of its beloved protagonists “Survivors” and many other infected groups. There are four game modes: Player mode, in which allied characters are controlled by the AI; Campaign mode for four players; Eight-player mode online versus; and four-player mode. In all situations, artificial intelligence (AI), known as “directors,” controls the stimulation of levels and the placement of objects to create a dynamic experience and improve rendering.
Left 4 Dead was well received by the industry media when it was released. He praised its retro value and focused on cooperative games and film-like experiences. Some of the criticisms relate to limited choices and a lack of history. The game has received multiple publishing and award awards from the Academy of Interactive Arts & Sciences and the British Academy of Film and Television Arts. Valve was created with Team Fortress 2 and added the game with free downloadable content. The first, called the Survival Pack, was released on April 21, 2009. The second DLC part was discussed on Xbox Live and was released in the form of a new campaign called “Crash Course” that was released on September 29, 2009 for PC and Xbox 360 4 Dead was released on March 28, 2010.
The popularity of the game led to the development of the sequel Left 4 Dead 2, which was released on November 17, 2009. New cards for Left 4 Dead and Left 4 Dead 2 called “The Sacrifice” were released on October 5, 2010. In July 2012, all released Left 4 Dead 2 campaigns were moved to Left 4 Dead 2, with multiplayer support for multiple platforms between the Windows and Mac versions of the game.