Read more about The Survivors (Left 4 Dead 2) at: Wikipedia

Official Site: Valve Software

Left 4 Dead 2 is a cooperative first-person shooter game. It is the sequel to Valve Corporation's award-winning Left 4 Dead. The game launched on November 17, 2009, for Microsoft Windows and Xbox 360 in the United States; it launched November 20 in Europe. It builds upon the cooperatively-focused gameplay of the original and uses Valve's proprietary Source engine, the same game engine used in Left 4 Dead. The game made its world premiere at E3 2009 with a trailer during the Microsoft press event.

Like the original, Left 4 Dead 2 is set during the aftermath of an apocalyptic pandemic, and focuses on four survivors fighting against hordes of the infected. The survivors must fight their way through levels, interspersed with safe house that act as checkpoints, with the goal of reaching a rescue vehicle at the campaign's finale. The gameplay is procedurally altered by an artificial intelligence engine dubbed the "Director" that monitors the players' performance and adjust the scenario to provide a dynamic challenge. Several new features have been introduced: new types of infected, melee weapon, and a story-arc that connects the game's five campaigns together.

When it was announced, it received a combination of positive and negative critical and community reactions. It also attracted an unusually high volume of pre-release controversy about the game's graphic content. In response, alterations were made to the cover art and both Australia (due to having no R18+ rating) and Germany refused to rate the unmodified edition.

Like its predecessor, Left 4 Dead 2 is set a few days after a worldwide pandemic of an infectious disease that rapidly transforms humans into zombie-like creatures and mutated forms that feed on the living. Few humans are immune to the disease, while others are carriers infected by it but showing no symptoms. The Civil Emergency and Defense Agency (CEDA) and the US military create safe zones to attempt to evacuate as many American survivors as possible. Left 4 Dead 2 introduces four new survivors—Coach, Ellis, Rochelle, and Nick—who are immune carriers of the disease and with individual back stories provided through character dialogue. Unlike the first game, which had no significant story development, the five campaign in Left 4 Dead 2 are set across a story arc, set in the Southern United States, which starts in Savannah, Georgia, and ends in New Orleans, Louisiana. The four survivors have to fight their way through the hordes of infected, using safehouses along the way to rest and recuperate in order to reach extraction points.

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