Left 4 Dead

Left 4 Dead
Fight together...or die alone. A new and highly virulent strain of the rabies virus emerges and spreads through the human population with frightening speed. The pandemic's victims become grotesquely disfigured, wildly violent psychopaths, attacking the uninfected on sight. One of the "lucky" few apparently immune to the sickness, you, unfortunately, are also trapped in a city crawling with thousands of the bloodthirsty Infected. Together with a handful of fellow Survivors, you must fight your way to safety or die alone. A co-operative multiplayer action game from the makers of...
Fight together...or die alone. A new and highly virulent strain of the rabies virus emerges and spreads through the human population with frightening speed. The pandemic's victims become grotesquely disfigured, wildly violent psychopaths, attacking the uninfected on sight. One of the "lucky" few apparently immune to the sickness, you, unfortunately, are also trapped in a city crawling with thousands of the bloodthirsty Infected. Together with a handful of fellow Survivors, you must fight your way to safety or die alone. A co-operative multiplayer action game from the makers of "Counter-Strike," Left 4 Dead is built atop the most advanced version of the Source Engine and introduces version 2 of Turtle Rock's artificial intelligence (A.I.) technology.
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Description
Left 4 Dead
Fight together...or die alone. A new and highly virulent strain of the rabies virus emerges and spreads through the human population with frightening speed. The pandemic's victims become grotesquely disfigured, wildly violent psychopaths, attacking the uninfected on sight. One of the "lucky" few apparently immune to the sickness, you, unfortunately, are also trapped in a city crawling with thousands of the bloodthirsty Infected. Together with a handful of fellow Survivors, you must fight your way to safety or die alone. A co-operative multiplayer action game from the makers of...
Fight together...or die alone. A new and highly virulent strain of the rabies virus emerges and spreads through the human population with frightening speed. The pandemic's victims become grotesquely disfigured, wildly violent psychopaths, attacking the uninfected on sight. One of the "lucky" few apparently immune to the sickness, you, unfortunately, are also trapped in a city crawling with thousands of the bloodthirsty Infected. Together with a handful of fellow Survivors, you must fight your way to safety or die alone. A co-operative multiplayer action game from the makers of "Counter-Strike," Left 4 Dead is built atop the most advanced version of the Source Engine and introduces version 2 of Turtle Rock's artificial intelligence (A.I.) technology.
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Publisher
Certain Affinity, Electronic Arts
Developer
Certain Affinity
Genre
Action > Shooter > First-Person > Arcade
Release Date (US)
08/21/2012
Release Date (EU)
08/21/2012
Release Date (JP)
09/17/2009
Cheat Codes/Hints
Open the door after completing a level
At the end of the level where the safe room is located, when closing the door keep tapping X. When the door closes, it will open and the level will be finished. The door will be closed the next day.
Orange Box reference
Near one of the escalators in the subway, there is an ad for "Orange Box" Juice, which is a reference to Valve's Orange Box game compilation.
Play against NPCs only on Versus Live
This trick can be done with two to four players. When in the lobby, have someone change to any character except for random or infected. Then, have the other person (people) change to infected. Have the person on survivors go to "Change Character" and highlight the "Infected" option. Start the game and have the person switch to infected before the game finds a dedicated server. The game will start, and there will be no one on the other team. It will take about two to five minutes before the NPCs open the door and leave the safe room. Note: If you kill the survivors or the survivors win, the game will not end. If someone joins the other team, it will be fixed and the game will continue. This glitch only works on the first levels of Blood Harvest and No Mercy.
Reload hint
This works best with shotgun but works most weapons, while you are reloading your weapon that takes a while, if you are attacked by a zombie you can smack them using the smack button without stopping the reload process and is essential if you are trying not to take damage if you are low on life. (you may already know this but if you don't then you do now)
Rocket Launcher
Complete the game on any difficulty.
Safe room door kill
Closing a safe room door on a zombie will kill them.
Star Wars reference
The APC in "Blood Harvest" is marked "TK-421" is a reference to the stormtrooper in Star Wars that Luke Skywalker and Han solo incapacitated.
Stay alive longer
When hordes of Infected appear, find a room with a door and no windows. Go inside and close the door. The Infected may break the door, but when you see a hole in it, shoot the Infected trying to break it down. Your teammates can handle most of the Infected.
Team Fortress 2 references
Before the finale in "Dead Air", while still in the safe room you can sometimes see a box which advertising Team Fortress 2.
John Slater, who is the voice actor for the person who drives the boat in "Death Toll", also voices the sniper in Team Fortress 2.
The Sacrifice DLC Achievements
Achievement
Description
Value
Barrel Rolled
Kill a Special Infected with an exploding barrel.
50
Chaos Generator
Have all 3 generators running at once in "The Sacrifice" finale.
50
Kill Bill
Have Bill sacrifice himself for the team.
50
Sacrifizzle
As a Special Infected, incap someone who is trying to sacrifice themselves.
50
Supreme Sacrifice
Complete "The Sacrifice".
50