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 and 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 houses 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 alters the scenario to provide a dynamic challenge for the players as they progress. Several new features have been introduced, such as new types of infected, melee weapons, and a story-arc that connects each of the game's five campaigns together.
The game attracted an unusually high volume of pre-release controversy. When it was announced, it received a combination of positive, negative, critical, and community reactions. There also have been concerns about the game's graphic content, as seen from the alterations made to the cover art as well as the refusal of classification by the Australian Office of Film and Literature Classification for the unmodified edition.
Gameplay
Like its predecessor, Left 4 Dead 2 is a first-person shooter with a heavy emphasis on cooperative gameplay, with some cutscenes presented in the third-person or using pre-rendered movies. The game presents five new campaigns, each composed of four or five smaller maps. In the first three or four maps of any campaign, the survivors attempt to reach a safehouse, while the final stage requires the survivors to call for rescue and hold against a large horde of infected while they wait.
Each survivor can carry one main weapon, and either one or two pistols, or one of several melee weapons (introduced in Left 4 Dead 2), such as frying pans or chainsaws. Players start levels with a single pistol, and the choice to upgrade to double pistols, or trade for a Magnum or melee weapon; players who preordered the game received the ability to start with a baseball bat as a downloadable extra. Though melee weapons cause extra damage to the infected when struck, the survivors can use any other weapon or item for weaker melee attacks and to temporarily push the infected back. Players also carry a flashlight, which can be used to maneuver in dark areas but may startle the infected; a first aid kit or defibrillator kit which can be used to heal or revive other survivors respectively; ammo packs can be deployed so the fellow survivors can grab some incendiary or explosive ammunition; pain pills or adrenaline shots that give a temporary burst of health recovery and agility; and a throwable weapon—a Molotov cocktail to set an area on fire, a pipe bomb modified with smoke alarm to attract a large number of infected before detonating and, new to Left 4 Dead 2, a vial containing Boomer bile, which can be thrown at infected to cause them to turn on each other. These weapons and items and additional ammunition are generally found at the start of each campaign and within safehouses, but may also be found scattered about the level.
As the survivors make their way through the campaign, they must work together to make their way to the safehouse and rescue. Players are shown the health and status of their fellow survivors, and should they not be in sight, will also be shown the silhouette of the other survivors. Taking damage from the infected causes the survivor to lose health, and their actions become slower as more damage is taken. If a survivor takes too much damage, they become incapacitated, and forced to fight off the infected using pistols until rescued by another survivor or dying from further damage; the character remains dead until the next level unless revived by a defibrillator, or, in Campaign mode, reappears in a "rescue closet" to be freed by the other survivors. Many of the special infected can quickly finish off a survivor if they are not rescued, and thus the game encourages players to stay as a group and work together to traverse the level safely. Should all the survivors be killed or incapacitated, the game is over, and players must restart that level. While most events the players experience are semi-randomly generated by the game's AI Director, some levels feature staged events which, when triggered by a survivor, cause the players to be rushed by a horde of infected.
Left 4 Dead 2 retains the three game modes of the original game—Campaign, Versus, and Survival—and adds a new game mode called Scavenge. In Campaign mode up to four human players fight against the computer-controlled infected to make their way between safe houses and eventually to rescue; any survivors not controlled by a human player is controlled by the computer. In Versus mode up to four other human players take control of the various Special Infected who try to prevent the Survivors from reaching the next safe house. The two teams swap sides once per chapter and are scored based on their play through as Survivors, with the scoring based primarily on distance traveled with a bonus awarded for each Survivors alive at the end. In the event of a tie between both teams on the same chapter, bonus points are awarded to the team who did the most damage while playing as the infected. Survival mode is 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. In the new four-on-four Scavenge mode, the survivor players are required to collect and use as many of the sixteen gas canisters scattered about a level to maintain fuel in power generators, extending the time in the round, while the infected players attempt to stop them, or at times, detonate the canisters themselves. New maps specific for this mode have been distributed with the game.
The game also features a "realism" mode, which can be enabled at any difficulty for any of the game modes. The realism mode removes some of the video game aspects from the gameplay: survivors are not able to see the silhouettes of their teammates, and should they die, they can only be revived with a defibrillator kit and will no longer respawn later in the level. Damage dealt to Infected is also changed, with headshots dealing more damage to enemies, rather than limb or body shots, making gameplay even more of a challenge. The realism mode, which is designed to force players to work closely together and rely on voice communication, was created to give players a way "to be challenged as a team" without having to increase the difficulty level of the game, according to Valve's Chet Faliszek.
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 houses 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 alters the scenario to provide a dynamic challenge for the players as they progress. Several new features have been introduced, such as new types of infected, melee weapons, and a story-arc that connects each of the game's five campaigns together.
The game attracted an unusually high volume of pre-release controversy. When it was announced, it received a combination of positive, negative, critical, and community reactions. There also have been concerns about the game's graphic content, as seen from the alterations made to the cover art as well as the refusal of classification by the Australian Office of Film and Literature Classification for the unmodified edition.
Gameplay
Like its predecessor, Left 4 Dead 2 is a first-person shooter with a heavy emphasis on cooperative gameplay, with some cutscenes presented in the third-person or using pre-rendered movies. The game presents five new campaigns, each composed of four or five smaller maps. In the first three or four maps of any campaign, the survivors attempt to reach a safehouse, while the final stage requires the survivors to call for rescue and hold against a large horde of infected while they wait.
Each survivor can carry one main weapon, and either one or two pistols, or one of several melee weapons (introduced in Left 4 Dead 2), such as frying pans or chainsaws. Players start levels with a single pistol, and the choice to upgrade to double pistols, or trade for a Magnum or melee weapon; players who preordered the game received the ability to start with a baseball bat as a downloadable extra. Though melee weapons cause extra damage to the infected when struck, the survivors can use any other weapon or item for weaker melee attacks and to temporarily push the infected back. Players also carry a flashlight, which can be used to maneuver in dark areas but may startle the infected; a first aid kit or defibrillator kit which can be used to heal or revive other survivors respectively; ammo packs can be deployed so the fellow survivors can grab some incendiary or explosive ammunition; pain pills or adrenaline shots that give a temporary burst of health recovery and agility; and a throwable weapon—a Molotov cocktail to set an area on fire, a pipe bomb modified with smoke alarm to attract a large number of infected before detonating and, new to Left 4 Dead 2, a vial containing Boomer bile, which can be thrown at infected to cause them to turn on each other. These weapons and items and additional ammunition are generally found at the start of each campaign and within safehouses, but may also be found scattered about the level.
As the survivors make their way through the campaign, they must work together to make their way to the safehouse and rescue. Players are shown the health and status of their fellow survivors, and should they not be in sight, will also be shown the silhouette of the other survivors. Taking damage from the infected causes the survivor to lose health, and their actions become slower as more damage is taken. If a survivor takes too much damage, they become incapacitated, and forced to fight off the infected using pistols until rescued by another survivor or dying from further damage; the character remains dead until the next level unless revived by a defibrillator, or, in Campaign mode, reappears in a "rescue closet" to be freed by the other survivors. Many of the special infected can quickly finish off a survivor if they are not rescued, and thus the game encourages players to stay as a group and work together to traverse the level safely. Should all the survivors be killed or incapacitated, the game is over, and players must restart that level. While most events the players experience are semi-randomly generated by the game's AI Director, some levels feature staged events which, when triggered by a survivor, cause the players to be rushed by a horde of infected.
Left 4 Dead 2 retains the three game modes of the original game—Campaign, Versus, and Survival—and adds a new game mode called Scavenge. In Campaign mode up to four human players fight against the computer-controlled infected to make their way between safe houses and eventually to rescue; any survivors not controlled by a human player is controlled by the computer. In Versus mode up to four other human players take control of the various Special Infected who try to prevent the Survivors from reaching the next safe house. The two teams swap sides once per chapter and are scored based on their play through as Survivors, with the scoring based primarily on distance traveled with a bonus awarded for each Survivors alive at the end. In the event of a tie between both teams on the same chapter, bonus points are awarded to the team who did the most damage while playing as the infected. Survival mode is 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. In the new four-on-four Scavenge mode, the survivor players are required to collect and use as many of the sixteen gas canisters scattered about a level to maintain fuel in power generators, extending the time in the round, while the infected players attempt to stop them, or at times, detonate the canisters themselves. New maps specific for this mode have been distributed with the game.
The game also features a "realism" mode, which can be enabled at any difficulty for any of the game modes. The realism mode removes some of the video game aspects from the gameplay: survivors are not able to see the silhouettes of their teammates, and should they die, they can only be revived with a defibrillator kit and will no longer respawn later in the level. Damage dealt to Infected is also changed, with headshots dealing more damage to enemies, rather than limb or body shots, making gameplay even more of a challenge. The realism mode, which is designed to force players to work closely together and rely on voice communication, was created to give players a way "to be challenged as a team" without having to increase the difficulty level of the game, according to Valve's Chet Faliszek.
Left 4 Dead system requirement PC platform :
Minimum System Requirements For Left 4 Dead 2:
Operating System: Windows 7 / Windows Vista / Windows Vista64 / Windows XP
Processor: Intel Pentium 4 3.0 GHz
Memory: 1 GB for XP / 2GB for Vista
Hard Drive: 7.5 GB Free
Video Card (graphics): DirectX 9 compatible video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
DirectX: 9.0c
Sound Card: DirectX 9.0c compatible sound card
The Recommended Requirements For Left 4 Dead 2:
Operating System: Windows 7 / Windows Vista / Windows Vista64 / Windows XP
Processor: Intel core 2 duo 2.4GHz
Memory: 1 GB for XP / 2GB for Vista
Hard Drive: 7.5 GB Free
Video Card (graphics): DirectX 9 compatible video card with Shader model 3.0. NVidia 7600, ATI X1600 or better
DirectX: 9.0c
Sound Card: DirectX 9.0c compatible sound card
Left 4 Dead movie screenshot :
Minimum System Requirements For Left 4 Dead 2:
Operating System: Windows 7 / Windows Vista / Windows Vista64 / Windows XP
Processor: Intel Pentium 4 3.0 GHz
Memory: 1 GB for XP / 2GB for Vista
Hard Drive: 7.5 GB Free
Video Card (graphics): DirectX 9 compatible video card with 128 MB, Shader model 2.0. ATI X800, NVidia 6600 or better
DirectX: 9.0c
Sound Card: DirectX 9.0c compatible sound card
The Recommended Requirements For Left 4 Dead 2:
Operating System: Windows 7 / Windows Vista / Windows Vista64 / Windows XP
Processor: Intel core 2 duo 2.4GHz
Memory: 1 GB for XP / 2GB for Vista
Hard Drive: 7.5 GB Free
Video Card (graphics): DirectX 9 compatible video card with Shader model 3.0. NVidia 7600, ATI X1600 or better
DirectX: 9.0c
Sound Card: DirectX 9.0c compatible sound card
Left 4 Dead movie screenshot :
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