Grayson, Nathan (2009-10-29). "Left 4 Dead 2 PC demo off to a shambling start". VG247. Archived from the original on 2012-04-03 . Retrieved 2009-10-29. a b c d "Left 4 Dead Hands-on Preview– Survivor Side". Left 4 Dead 411. Archived from the original on October 21, 2008 . Retrieved October 25, 2008. Kelly, Neon (2009-11-19). "Left 4 Dead 2 Review". VideoGamer.com. Archived from the original on 2017-04-05 . Retrieved 2017-03-31. Cario, Erwan (2009-11-19). " " Left 4 Dead 2 " prend aux tripes". Libération. Archived from the original on 2012-03-03 . Retrieved 2009-11-19. As soon as I arrive, I'm aimed towards the playroom. Visiting the studio? Meeting the upper staff management? I will see later. Valve people do not imagine for a minute that a journalist may have cross half the globe for something else than playing the game fifteen days before the others. As if the game spoke for itself, as if it was carrying a speech far more powerful than any of those who participated in its birth. It is probably true.

Left 4 Dead 2 on Xbox 360 is set at roughly the same time as the original just after the outbreak that turned most of the population into various zombie mutants. Players assume the role of 4 new "Survivors," each with their own personality and new dialog. The game leads these "Survivors" through the southeastern region of the US from Savannah, Georgia thru the bayou country, and climaxing in New Orleans' French Quarter. Microsoft. "Left 4 Dead". Xbox.com. Archived from the original on June 27, 2008 . Retrieved July 8, 2008. Steam Workshop is coming to Left 4 Dead 2!". Valve. 2012-09-20. Archived from the original on 2012-09-24 . Retrieved 2012-09-24.

Survival: a timed challenge where the Survivors are trapped in a section of the campaign maps, and try to survive as long as possible against an unending onslaught of Infected. Chalk, Andy (2009-06-03). "Valve Fans Form Left 4 Dead 2 Boycott Group". The Escapist. Archived from the original on 2012-04-02 . Retrieved 2009-06-04.

Good, Owen (2010-04-25). " "The Passing" Also Gives a Shout-Out to Plants vs. Zombies". Kotaku. Archived from the original on 2012-04-09 . Retrieved 2010-04-28. Left 4 Dead went gold on November 13, 2008, and was released on November 18, 2008, in North America; and on November 21, 2008, in Europe to coincide with the tenth anniversary of the release of Half-Life. [59] [60] Glasser, AJ (2010-04-22). "Frank West makes a cameo in L4D2 The Passing". GamePro. Archived from the original on 2010-08-29 . Retrieved 2010-04-22. Ocampo, Jason (2009-07-09). "Left 4 Dead 1 & 2 Compared". IGN. Archived from the original on 2009-07-15 . Retrieved 2009-09-25.Valve. Left 4 Dead 2 (2.1.0.7ed.). Valve. Level/area: The Passing. Coach: City of Rayford! They used to have a boiled peanut festival here! Aw, man, good memories... Versus: up to four other human players take control of various Special Infected to try and prevent the Survivors from completing a stage. Special Infected are randomly assigned to Infected players; they cannot control the Witch or any Common Infected. Occasionally, as determined by the AI Director, certain players will become the Tank. The two teams swap sides once per stage, and are scored based on their stage progress as Survivors. If both teams make it to the saferoom with all four Survivors, a 25-point tiebreaker is awarded to the team that dealt the most combined damage as Special Infected. Left 4 Dead Intro". Valve. October 31, 2008. Archived from the original on March 23, 2010 . Retrieved November 8, 2008.