Left 4 Dead PC Cheats

Rating 5

"Man vs. Tank" achievement hint

  • Start a new game in "Dead Air" under the Easy difficulty and playthe finale. Once you have made it to the tanker, restock on ammunition, grab a pipe bomb or Molotov cocktail, then answer the radio and start the gas pump. Once the pump is activated, run around to the right-hand side of the rescue plane and get ready to fight off the horde. A benefit of this position is that the horde cannot surprise you from behind. Once it's time for the Tank to appear, it will usually spawn on the far side of the plane. Run up to opposite side, then run back and forth without coming around the plane to your side. Your AI teammates will not shoot the Tank when it is on the other side of the plane. By crouching you can easily aim at the lower body from beneath the plane and take it down quickly.

  • The open area at the end of "Death Toll" is an excellent location to unlock this achievement. There is enough room here to fight off the horde yourself and deal with the tank.

  • Start any level,except for the first chapter of any campaign, and have the difficulty set to Expert. When you start the level, kill the bots. Once you do, vote to change the difficulty to Easy. Note: In Single Player mode you will automatically win the vote, but it is best to perform this in Offline Co-op mode so that you have someone to help dispose of Hunters and Smokers. Find a Tank and kill him without help to earn the achievement.

  • Go to the Finale level of the No Mercy campaign in Online mode. Once the helicopter arrives, tell the other players to go somewhere else and keep the other Infected busy. Go to the helicopter and get inside. If the Tank spawns near you, it will chase you. Since the helicopter is so small, it cannot get inside and will be stuck trying to reach you. Kill it and you will unlock the achievement because your teammates were too busy doing something else.

Rating 4


101 Cremations Set 101 Infected on fire.
Akimbo Assassin Survive a campaign firing no guns other than pistols.
All 4 Dead Kill all four Survivors on one life as a Tank.
Back 2 Help Leave a safe room to save an incapped teammate and bring them back
Barf Bagged Cover four Survivors with Boomer bile at once.
Big Drag Drag a Survivor x distance with your tongue.
Blind Luck You or another Survivor take no damage after being vomited on by a Boomer.
Brain Salad Make 100 headshot kills.
Bronze Mettle Earn a Bronze medal in Survival mode on any official level.
Burn the Witch Light a Witch with a Molotov.
Chain Smoker Constrict two Survivors on one life as a Smoker.
Clean Kill Shove a Boomer and then kill him without him splashing on anyone.
Cr0wnd Kill a Witch with a single headshot.
Dead Baron Survive the Dead Air campaign.
Dead Giveaway Heal a fellow Survivor when your own health is below 10.
Dead Stop Punch a Hunter as he is pouncing.
Dead Wreckening Dole out 5000 total Survivor damage as a Special Infected.
Distinguished Survivor Earn at least a Bronze medal on every official Survival level.
Do Not Disturb Sneak past all Witches in a campaign without disturbing one.
Double Jump Pounce two different Survivors on one life as a Hunter.
Drag and Drop Rescue a Survivor from a Smoker's tongue before he takes damage.
Field Medic Heal 25 Survivors with a first aid kit.
Grim Reaper Survive the Blood Harvest campaign.
Ground Cover Save another Survivor from a Special Infected while on the ground.
Helping Hand Revive 50 incapacitated Survivors.
Hero Closet Rescue a Survivor trapped in a closet.
Heroic Survivor Earn at least a Silver medal on every official Survival level.
Hunter Punter Shove a Hunter off of a pinned and helpless Survivor.
Jump Shot Headshot a Hunter while he's leaping.
Lamb 2 Slaughter Incapacitate a Survivor after he has entered and exited a safe room.
Last Stan Complete one round of Survival on The Last Stand.
Legendary Survivor Earn a Gold medal on every official Survival level.
Man vs Tank Single-handedly kill a Tank.
Mercy Killer Survive the No Mercy campaign.
My Bodyguard Protect any Survivor from an attacking Infected 50 times.
No Smoking Section Kill 10 Smokers as they are pulling helpless Survivors.
No-One Left Behind Beat a campaign with all 4 Survivors.
Nothing Special Survive a campaign with no Survivors taking damage from Specials.
Pharm-assist Give pain pills to 10 Survivors.
Pyrotechnician Blow up 20 Infected in a single explosion.
Red Mist Kill 1000 Infected with a mounted machine gun.
Safety First Play through a campaign with no Survivors taking friendly fire damage.
Silver Bullets Earn a Silver medal in Survival mode on any official level.
Spinal Tap Kill an Infected with a single blow from behind.
Stand Tall Survive a campaign without being incapacitated.
Stomach Upset All Survivors complete a campaign without being vomited on.
Tankbusters Kill a Tank without it dealing any damage to a Survivor.
Toll Collector Survive the Death Toll campaign.
Tongue Twister Kill a Smoker who has grabbed you with his tongue.
Towering Inferno Light a Tank with a Molotov.
Unbreakable Beat a campaign without ever using a first aid kit on yourself.
Untouchables No Survivors take damage after contacting the rescue vehicle.
Violence Is Golden Earn a Gold medal in Survival mode on any official level.
What Are You Trying To Prove? Survive all campaigns on Impossible.
Witch Hunter Kill a Witch without any Survivor taking damage from her.
Zombicidal Maniac Survive any campaign on Impossible.
Zombie Genocidest Kill 53,595 Infected.
20 Car Pile-Up (Requires "Crash Course" bonus DLC) As A Tank hit 20 Survivors with a car in the Crash Course campaign.
Crash-Proof (Requires "Crash Course" bonus DLC) Survive the Crash Course Campaign.
Jumpin' Jack Smash (Requires "Crash Course" bonus DLC) Pounce a Survivor for 25 points of damage in the Crash Course campaign.
Quick Power (Requires "Crash Course" bonus DLC) Restart the generator within 30 seconds of it shutting off.
Slippery Pull (Requires "Crash Course" bonus DLC) Smoker pull a bile-covered Survivor until you hold him during Crash Course.
Smash Hit (Requires "Crash Course" bonus DLC) Win a Versus campaign of Crash Course.
Tank Stumble (Requires "Crash Course" bonus DLC) Stun a Tank with an explosion in the Crash Course campaign.
The Littlest Genocide (Requires "Crash Course" bonus DLC) Kill 5,359 Infected in the Crash Course campaign.
Truck Stop (Requires "Crash Course" bonus DLC) Your team wipes all Survivors after the escape vehicle has opened in Crash Course.
Wipefest (Requires "Crash Course" bonus DLC) Your team incapacitates three Survivors within five seconds.

Rating 3

Easy wins as Infected in Blood Harvest: The Tunnel

To easily win as the Infected in Blood Harvest: The Tunnel, just after the safe room you start in, there is a warehouse area. Run to the emergency door on the other side of the warehouse. Spawn and push the forklift in front of the door.

Rating 3

Items hint on "Death Toll: Boathouse"

Under any difficulty setting, a health pack and pills always spawn in the bathroom across the field from the house.

Rating 3

Half-Life: Counter-Strike easter egg

Sometimes when Louis is picking up a sub machinegun, he might say "Aowww man this is just like Counter-Strike!".

Rating 3

Star Wars easter egg

The APC in "Blood Harvest" is marked "TK-421", which is a reference to the stormtrooper in Star Wars that Luke Skywalker and Han solo incapacitated.

Rating 3

Easy win as Infected on "No Mercy: The Subway

When the survivors get to the area where they have the minigun and the gate they have to open up, there will be a hole in the floor from which you can spawn as a Smoker. You can pull them through the floor multiple times.

Rating 2

NPC Codes

Input the following values into the "z_spawn [NPC name]" code to spawn that NPC:


Rating 2

Split-screen mode

To enable Split-screen mode, you will need to edit a game file. Make sure to create a backup of the file before proceeding. Insert an Xbox 360 controller and use a text editor to edit the "360controller.cfg" file in the "\left4dead\cfg folder" directory. Replace its text with the following:

unbindall // Prevent mouse/keyboard control when gamepad is in use (to prevent autoaim exploit)

joystick 1
joy_advanced "1" // use advanced joystick options (allows for multiple axes)

joy_name "L4D Xbox360 Joystick Configuration"
joy_advaxisx 3 // x-axis controls GAME_AXIS_SIDE (strafing left and right)
joy_advaxisy 1 // y-axis controls GAME_AXIS_FORWARD (move forward and back)
joy_advaxisz 0 // z-axis is treated like a button
joy_advaxisr 2 // r-axis controls GAME_AXIS_PITCH (look up and down)
joy_advaxisu 4 // u-axis controls GAME_AXIS_YAW (look left and right)
joy_advaxisv 0 // v-axis is unused
joy_forwardsensitivity -1.0 // movement sensitivity
joy_sidesensitivity 1.0
joy_forwardthreshold 0.1 // movement dead zone settings
joy_sidethreshold 0.1
joy_pitchsensitivity 1.0 // look sensitivity
joy_yawsensitivity -1.5
joy_pitchthreshold 0.1 // look dead zone settings
joy_yawthreshold 0.0

joy_variable_frametime 1
joy_autoaimdampenrange 0.85
joy_autoaimdampen 0.5
joy_lowend 0.65
joy_lowmap 0.15
joy_accelscale 3.0
joy_accelmax 4.0
joy_response_move 5
joy_response_look 1
joy_autoaimdampen 0.3
joy_autoaimdampenrange 0.85
joyadvancedupdate // advanced joystick update allows for analog control of move and look

// Alternate control 1
bind "0" "slot10"
bind "1" "slot1"

bind "2" "slot2"
bind "3" "slot3"
bind "4" "slot4"
bind "5" "slot5"

bind "6" "slot6"
bind "7" "slot7"
bind "8" "slot8"
bind "9" "slot9"

bind "a" "+moveleft"
bind "c" "+voicerecord"
bind "d" "+moveright"
bind "e" "+use"

bind "f" "impulse 100"
bind "h" "motd"
bind "m" "chooseteam"
bind "q" "lastinv"

bind "r" "+reload"
bind "s" "+back"
bind "t" "impulse 201"
bind "u" "messagemode2"

bind "w" "+forward"
bind "x" "+mouse_menu QA"
bind "y" "messagemode"
bind "z" "+mouse_menu Orders"

bind "`" "toggleconsole"
bind "SPACE" "+jump"
bind "TAB" "+showscores"
bind "ESCAPE" "cancelselect"

bind "SHIFT" "+speed"
bind "CTRL" "+duck"
bind "F1" "Vote Yes"
bind "F2" "Vote No"

bind "F5" "jpeg"
bind "MOUSE1" "+attack"
bind "MOUSE2" "+attack2"
bind "MOUSE3" "+zoom"

bind "MWHEELUP" "invprev"
bind "MWHEELDOWN" "invnext"

// controller2 bindings
cmd2 +jlook // enable joystick look
cmd2 bind "A_BUTTON" "+jump;+menuAccept" // (A) button - Jump -menuAccpt allows us to make selections on hud menus
cmd2 bind "B_BUTTON" "+reload" // (B) button - Reload
cmd2 bind "X_BUTTON" "+use" // (X) Use
cmd2 bind "Y_BUTTON" "lastinv" // (Y) button - swap pistol/rifle or z_abort -used to respawn as a ghost.
cmd2 bind "R_TRIGGER" "+attack" // RT - Main weapon - Primary trigger
cmd2 bind "L_TRIGGER" "+attack2" // LT - Melee
cmd2 bind "R_SHOULDER" "+lookspin" // RB - Fast 180 spin
cmd2 bind "L_SHOULDER" "toggle_duck" // LB - Duck - is also used to give objects to people.
cmd2 bind "STICK1" "vocalize smartlook" // LS - vocalize
cmd2 bind "STICK2" "+zoom" // RS click - Rifle Zoom

// Fixed bindings, do not change these across joystick presets
cmd2 bind "BACK" "togglescores" // (back) button - scores
cmd2 bind "START" "pause" // (start) button - pause
cmd2 bind "S1_UP" "+menuUp" // Hud menu Up
cmd2 bind "S1_DOWN" "+menuDown" // Hud menu Down
cmd2 bind "UP" "impulse 100" // DPad Up - Toggle flashlight
cmd2 bind "LEFT" "slot3" // DPad Left - grenade
cmd2 bind "RIGHT" "slot4" // DPad Right - health
cmd2 bind "DOWN" "slot5" // DPad Down - Pills

Go to "Main Menu" > "Options" > "Keyboard/Mouse". Enable the "Allow Developers Console" option. While playing the game, press ~ to display the console window. Type "Exec 360controller.cfg" and press [Enter], then set your split screen mode with the following console codes: "ss_splitmode 1" ("Horizontal-Cut" for standard monitors) or "ss_splitmode 2" ("Vertical-Cut" for widescreen monitors). Connect to a server and join the server with the "connect [IP address] 2" console code. You must now set the Xbox 360 controller to player two. To do this, quickly unplug and reinsert the Xbox 360 controller while the game is on. You will now be able to play Co-op mode using a split-screen.

Rating 2

Stronger hunter

When a hunter is on fire, their attacks/pounces on survivors do more damage. Set yourself on fire with a fire pit or burning car and then attack to easily take out survivors.

Rating 2

Easy kills on "No Mercy: The Apartments"

In level 1 of the No Mercy chapter, the Survivors must jump into a sewer hole to enter them. As an Infected, use this to your advantage. As a Smoker or a Hunter, hide behind one of the large canisters in the room. Once the players open the hole and are done checking the vicinity, they will jump in. Since they must jump in one at a time or get stuck, make sure you have a clear view of the last one in line. Once all three are down and the fourth Survivor is still up, pounce or grab him. By doing this he will not be able to be saved, unless someone throws a Molotov or a pipe bomb.

Rating 2

Witches strategy

To kill a Witch quickly, throw a Molotov cocktail. When the Witch is on fire, shoot her with an automatic shotgun.

Rating 2

Survivors strategy

When Hunters are on fire, their pounces and attacks on Survivors do much more damage per hit. Use this to your advantage and deliberately set yourself on fire with the several fire pits or burning cars, then attack. This allows you to easily down Survivors. Note: This only works for Hunters, not Smokers, Boomers, or Tanks.

Rating 2

Faster melee attacks hint

Rapidly tap [Weapon Switch] and [Melee] alternately to double your melee speed.

Rating 2

Keeping CPU characters from healing you

When offline, there is a way to keep CPU characters from healing you. When a CPU character attempts to heal you with first aid, take out either your own first aid or pain pills. The CPU character will stop healing you. Note: As soon as you put your healing item away, they will try again. This is useful when trying to get the "Unbreakable" achievement. Keeping CPU characters from healing you:
When offline, there is a way to keep CPU characters from healing you. When a CPU character attempts to heal you with first aid, take out either your own first aid or pain pills. The CPU character will stop healing you. Note: As soon as you put your healing item away, they will try again. This is useful when trying to get the "Unbreakable" achievement.

Rating 2

"Unbreakable" achievement hint

  • If you have a health pack and are low on health, pause game play and choose "Take A Break". While you are idle, you will be healed. When it is done, rejoin the game and the healing will not count against you. Note: This was done under the Easy difficulty setting.

  • Play on the No Mercy campaign under the Easy difficulty setting. Take a MedKit at the start. You now have two choices: either run off the ledge behind you (hold the Analog-stick Up and you will land on something above the dumpster), or go through the apartment. If you run off, you will be at 64 health (do not jump off or you will be at 2 health). Proceed through the campaign as usual after that. When your health is in the low 20s, your teammates will try to heal you. Take out your MedKit and they will stop. You should be incapacitated somewhere in the subway or sewer level. Afterward, grab every pack of pain pills find. If there are multiples of them, grab one, use it, then grab the other. If your teammates have pain pills and they take them out to give to you, do not take out your MedKit or they will put them away and try to heal you for about twenty minutes. When your health is in the low 70s, your teammates will try to heal you. When you are in the finale, there most likely will not be any pain pills. However, search everywhere on the roof and inside. Break open one of the doors below the door that leads to the Jesus Room. Do not try to open the door to the Jesus Room because you will die trying. Then, contact the helicopter and run for the room you selected and stay there, MedKit out. Your teammates should follow you inside and will keep you covered. Don't worry about the Tank; your teammates will go out to fight it. When the helicopter arrives, you will be at 1 health. Moe to the stairs that lead to the helipad; not the ramp or you will die. You should be incapacitated when you reach the top. Keep the Infected off you and run for the helicopter. Do not worry about getting hit; if you do not stop, you will make it. Since you did not use your MedKit, did not allow your teammates to heal you, and relied only on pain pills (which do not count as healing), you will unlock the "Unbreakable" achievement.

Rating 2

Open the door after completing a level glitch

At the end of the level where the safe room is located, when closing the door, repeatedly tap [Action]. When the door closes, it will open and the level will be finished. The door will be closed the next day.

Rating 2

Extra health with pain pills on "Death Toll"

Note: This only works with pain pills (or if someone gives them to you). Find the water located near the location you get rescued (last stage). Before you summon the horde, duck underneath the water until you are incapacitated. Make sure there are teammates close by to save you. Let them help you up or give you pills if you need them, then use the pills under the water. Stand up after you use the pills and your health will go to up to 124. Note: This was done under the Easy difficulty setting.

Rating 2

"Zombicidal Maniac" and "What Are You Trying To Prove" achievements hint

It is possible for a friend to invite you into the last chapter of any episode (as long as it is from the Dashboard). Completing it from that chapter will make the game flag that you have gone through the entire campaign and not just that last chapter. This also works for all other achievements related to doing a "whole campaign", such as "Safety First" and "Upset Stomach". Note: Only people invited in from the Dashboard will receive the achievements, and not the person inviting.

Rating 2

Easy win on "Blood Harvest: Farmhouse Raid"

During the farmhouse part at the end, an easy way to win is fill up with ammo. Get the health kit and find the barn, then climb up the ladder. You can occasionally find an ammo supply. You can easily cover the window and the bottom of the barn, Be careful when you need to get a rescue.

Rating 2

Big explosion on "No Mercy The Sewer"

At the start of the sewers, if any gas tank catches fire or is shot, the entire station explodes into flames.

Rating 2

Orange Box easter egg

Near one of the escalators in the subway, there is an ad for "Orange Box" Juice, a reference to Valve's Orange Box game compilation.

Rating 2

Killing two zombies with one bullet

Use a sniper rifle and zoom in on a group of zombies. When you see a zombie lined up while standing behind another one, shoot at the one in the front. The zombie in back will also get shot.

Rating 1

Item Codes

Input tthe following values into the "give [item name]" code to spawn that item:


Rating 1

Invincibility while reloading

While reloading, hold [Melee] to knock back attacking zombies. You will be invicible while reloading.

Rating 1

Skipping Horde on "Death Toll"

Note: This trick must be done online. When you are at the crane that triggers a car alarm, do not turn it on. Instead, stand behind it and become idle to be teleported to an alley beyond the crane. Note: If you do this, you cannot get back. Make sure you are prepared for a possible Tank.

Rating 1

Tanks strategy

  • To kill Tanks faster, throw a Molotov cocktail or a gas tank and shoot it. When the Tank is on fire, unload on him with an assault rifle.

  • To defeat Tanks under the Expert difficulty setting, follow these rules. Do not shoot it when you see it. Run away as you stand no chance against it in the open. Leave your teammates. If you are moving slowly due to injury, take pain pills. Do not heal; that is a guaranteed death. Shoot at it while running if you wish, but you will not be able to see where you are going and will probably end up being pinned against a wall. You should be running back the way you came. Do not worry about leaving teammates; if you are playing alone with three bots they will die anyway. Return to the safe room since not even the Tank can break the steel door. However, for some odd reason, he can still hit you -- be careful. From there, you can use any weapon desired.

Rating 1

Expert difficulty hints

Be careful not to shoot your allies--it is not worth killing two zombies if you have to down an ally to do it. Do not bother searching for items as the longer you linger, the more zombies will spawn. However, if you see something along the way, feel free to pick it up. If someone gets pinned or grabbed by a Smoker, sometimes it is easier to free them by just going up to them and pressing LT. Most people think you need to run from the Tank, but even under the Easy and Normal difficulties you must to kill two Tanks before the rescue vehicle arrives. Therefore, it is not possible to run all the way back to the safe room. The easiest way to kill the Tank is to have everyone fire at it while the person it is after tries to dodge and fire at the same time. Even under the Expert difficulty setting it should not live more than a minute if everyone calmly shoots at it. There is no way to pass the Tank without shooting it.

Rating 1

Dead Rising easter egg

The number of zombies you have to kill for the "Zombie Genocidist" achievement (53,595), is the exact same zombie kill count and achievement in Dead Rising.

Rating 1

Left 4 Dead easter eggs

  • In the hospital levels of "No Mercy", there are X-rays with only four fingers-- a reference to the game's cover art.

  • When the elevator in "No Mercy" is activated and moving down and you are an Infected, the number of what floor it is on will not change from "04", which is a reference to the "4" in the game's title.

  • In the hospital starting safe room of "No Mercy", there is graffiti on the wall reading "I killed..." and then lists various variables, including 53,594. This is the number of Infected you must kill to receive the "Zombie Genocide" achievement.

Rating 1

Team Fortress 2 easter egg

  • Before the finale in "Dead Air", while still in the safe room, you can occasionally see a box advertising Team Fortress 2.

  • John Slater, the voice actor for the person who drives the boat in "Death Toll", is also voice of the sniper in Team Fortress 2.

Rating 1

Easy way through on "No Mercy: The Sewer"

Note: An unpatched version of the game is required. Over by the trucks is a door that you can open later. Howeverm if you have a few people meleeing it, it will eventually break.

Rating 1

Get revived by Infected glitch

A Tank and Hunter can revive you if you become incapacitated. If you are Infected, hold [Action] when you are near an incapacitated person

Rating 1

Minigun launcher glitch

Note: An unpatched version of the game is required. Go to any mounted minigun on any level, then stay behind it and start to melee it. You can do this by yourself or get other people to do this. Every time your gun hits the minigun, its launching strength increases. Once you hit it enough, jump on top of it. One of two thing will happen: it will either make you bounce very high or launch you across the map to your death. Bouncing straight up on it allows you to get to unreachable places such as buildings, airplanes, barriers. etc.

Rating 1

Play as infected

Activate the "ent_fire !self setteam 3" code. After spawning and dying, press JUMP until the camera changes into Free Roam mode. Then, activate one of the following "z_spawn" codes to play as that type of infected:

z_spawn smoker
z_spawn tank
z_spawn boomer
z_spawn hunte

Rating 1

Weapon damage points

The following are the damages for all firearms based on bodyshots to tank:

Uzi-25 (single bullet)
Pump Shotgun- 240 (Close Range)*
160 (Mid Range)*
103 (Long Range)*
10 (Maximum Visual Range)*
Hunting Rifle- 90
Assault Rifle- 32
Auto Shotgun- 270 (Close Range)*
160 (Mid Range)*
125 (Long Range)*
20 (Maximum Visual Range)*

*Ranges for Shotguns based on general distance. May vary slightly for you.

Rating 1

"Zombie Genocidest" achievement hint

This can be done anywhere except Versus mode. You must kill 53,595 zombies. When playing in Campaign mode, get a couple friends (Louis, Bill, Zoey, and Francis) to help you. The bots can sometimes kill the zombies and special Infected more than you can. In order to kill more zombies than the bots, find a sniper rifle, get to a high area, and snipe each zombie. You can also go lower, but turn off the flashlight or your snipe may be ruined by the attack of a zombie. The best levels to do this are any until the finale in "Blood Harvest"; "The Greenhouse" and "Crane" levels in "Dead Air"; "The Church" and "The Town" in "Death Toll"; and the first three levels in "No Mercy".

Rating 1

Half-Life easter egg

Dr. Breen from Half Life can be seen in some of the newspapers seen throughout the game.

Rating 1

Shortcut on "Dead Air: The Construction Site"

Note: An unpatched version of the game is required. In "The Construction Site", there is a metal door and a raised fence by the barricade that you burn. Jump on the fence and follow it until it starts to go downward. At this point, jump on the metal siding "door". Note: Practice may be required.

Rating 1

Leave level boundary on "No Mercy The Apartments"

  • Note: This was done on Versus mode online. Start the campaign and jump on the wall that is away from the alley. When looking towards the street, go to the right. When looking down, you will see a white "board". Jump for the board and heal yourself, then jump down to the ground. On the other side of the street is a desk-like object in front of an alley. Jump over the desk. Only common infected can get over that desk. Stay away from the Hummer or you will randomly get killed.

  • This is only possible on Versus mode, and you must be a Hunter. First, get on the rooftop that is basically the building in the center of the map. Face the other end of the street; not where the gas trucker is found, but the other one. Aim for the light post, then jump and land on top of it. Jump up to the ledge on the building in front of you, then jump to the fire escape stairs. Run up to the top of the stairs and jump on the roof. Go all the way to the back and turn left. Start walking. You will pass over an alley, and a second one you must jump over. From there, continue beyond the buildings. Refer to this map. You will eventually fall down to a street. There is here nothing of importance, but you are outside of the map.

Rating 1

Punch twice as fast

Rapidly alternate tapping the melee button and the weapon switch button to double your melee speed. This can be useful for beating off zombies on Expert difficulty. Note: This may be banned in Versus mode.

Rating 1

Speed hint

As the director's commentary says, the Tank can be outrun by any survivor with green (51% or more) health, but the Tank can overtake any survivor with 50% of less life. This is because the more injured a survivor is, the slower s/he moves. However, pain pills will boost the speed of an injured survivor, although the color of the life bar will reflect his/her original health status.

Rating 1

"Stand Tall" and "Unbreakable" achievements hint

Play offline on the Easy difficulty and let the bots clean up the enemies on the map. If you get healed, you can restart the map after dying and not have it count against you.

Rating 1

Hot swap hint

To 'reset' your primary weapon to its original (cherry) state, pick up a weapon different from yours, then re-select the weapon you want. This is faster than reloading (plus the time used from replenishing from the ammo pile), and can help in close-call rescue finales.

Rating 1

Cheat Codes

To activate the following cheats, go to "Main Menu" > "Options" > "Keyboard/Mouse". Enable the "Allow Developers Console" option. While playing the game, press ~ to bring up the console window. Type "Sv_Cheats 1" and press to enable cheat mode for everyone on your hosted server. Then, activate the following cheats by entering the corresponding codes and pressing ENTER:

Toggle invincibility god [0 or 1]
Full health for your character give health
Receive damage, but will cannot die    buddha
All weapons and ammunition impulse 10
Toggle infinite ammunition sv_infinite_ammo [0 or 1]
Toggle no clipping mode noclip
Spawn indicated item    give [item name]
Spawn indicated item for NPCs ent_create weapon_[item name]
Spawn indicated NPC type z_spawn [NPC name]
Spawn active pipebomb under you boom
Spawn lit Molotov cocktail under you fire
Remove a teammate; repeat for more ent_remove
Infected cannot see you nb_blind 1
Teleports all survivors to your position warp_all_survivors_here
Teleports all survivors to the nearest checkpoint warp_all_survivors_to_checkpoint
Teleports all survivors to the finale warp_all_survivors_to_finale
Teleport yourself to the next chapter warp_to_start_area
Quick change map    changelevel [map name]
Be spectator ent_fire !self setteam 1
Be survivor ent_fire !self setteam 2
Be infected ent_fire !self setteam 3
Set number of normal zombies z_common_limit [number]
Set number of panic zombies z_mega_mob_size [number]
Set zombie health z_health [number]
Set zombie speed z_speed [number]
Set maximum range of Smoker's tongue attack; default is 750 tongue_range [number]
Set time before a burning Witch dies from fire z_witch_burn_time
Set amount of damage Witch's attack does z_witch_damage [number]
Toggle allowing witch to change targets instead z_witch_allow_change_victim [0 or 1]
Set maximum health of Tank z_tank_health [number]
Set number of seconds until the player loses control of Tank from not attacking survivors z_frustration_lifetime [number]
Toggle if bots can do friendly fire damage sb_friendlyfire [0 or 1]
Disable all wanderers, mobs, specials, and Bosses director_stop
Force a panic director_force_panic_infinite 1
Force a panic event director_force_panic
Toggle never ending panics director_panic_forever [0 or 1]
Toggle mob rushes director_no_mobs [0 or 1]
Toggle controllable Boss Infected director_no_human_zombies [0 or 1]
Set camera behind the shoulder in third person view thirdpersonshoulder
Toggle set fixed camera in third person or third person shoulder view thirdperson_mayamode
Third person view thirdperson
Return to first person view firstperson
Enable Internet LAN; enable while in "Campaign Lobby" screen sv_lan 0
Start LAN server; enable while in "Campaign Lobby" screen map [map name]
Display available servers openserverbrowser
Restart game with cheats active; allows achievements to be earned with cheats retry
Commit suicide kill
Quit game quit

Rating 1

Map Codes

Input the following values into the "changelevel " or "map " code to play on that map:

No Mercy: The Apartments changelevel l4d_hospital01_apartment
No Mercy: The Subway changelevel l4d_hospital02_subway
No Mercy: The Sewer changelevel l4d_hospital03_sewers
No Mercy: The Hospital changelevel l4d_hospital04_interior
No Mercy: Rooftop Finale changelevel l4d_hospital05_rooftop
Death Toll: The Turnpike changelevel l4d_smalltown01_caves
Death Toll: The Drains changelevel l4d_smalltown02_drainage
Death Toll: The Church changelevel l4d_smalltown03_ranchhouse
Death Toll: The Town changelevel l4d_smalltown04_mainstreet
Death Toll: Boathouse Finale changelevel l4d_smalltown05_houseboat
Dead Air: The Greenhouse changelevel l4d_airport01_greenhouse
Dead Air: The Crane changelevel l4d_airport02_offices
Dead Air: The Construction Site changelevel l4d_airport03_garage
Dead Air: The Terminal changelevel l4d_airport04_terminal
Dead Air: Runway Finale changelevel l4d_airport05_runway
Blood Harvest: The Woods changelevel l4d_farm01_hilltop
Blood Harvest: The Tunnel changelevel l4d_farm02_traintunnel
Blood Harvest: The Bridge changelevel l4d_farm03_bridge
Blood Harvest: The Train Station changelevel l4d_farm04_barn
Blood Harvest: Farmhouse Finale changelevel l4d_farm05_cornfield

No Mercy: The Apartments changelevel l4d_vs_hospital01_apartment
No Mercy: The Subway changelevel l4d_vs_hospital02_subway
No Mercy: The Sewer changelevel l4d_vs_hospital03_sewers
No Mercy: The Hospital changelevel l4d_vs_hospital04_interior
No Mercy: Rooftop Finale changelevel l4d_vs_hospital05_rooftop
Blood Harvest: The Woods changelevel l4d_vs_farm01_hilltop
Blood Harvest: The Tunnel changelevel l4d_vs_farm02_traintunnel
Blood Harvest: The Bridge changelevel l4d_vs_farm03_bridge
Blood Harvest: The Train Station changelevel l4d_vs_farm04_barn
Blood Harvest: Farmhouse Finale changelevel l4d_vs_farm05_cornfield

Rating 0

Use fire on the infected

The infected cannot extinguish fires. Use a molotov or ignite a gas can to easily take out tanks and witches.

Rating 0

Survival hints

  • When hordes of Infected appear, find a room with a door and no windows. Go inside and close the door. The Infected might break the door, but when you see a hole in it, shoot the Infected breaking it down. Your teammates can handle most of the Infected.

  • When low on health and alone, allow the CPU controlled players to attack Witches and Tanks. This will keep you from dying and also weaken enemies. The CPU characters will later appear behind a closed door with 50 health.

Rating 0

Unbreakable door hint

When low on health and need somewhere to hide, find a bathroom stall. Go inside the stall and close the door. The door never breaks down. This works well when trying to heal yourself.

Rating 0

Drop through elevator on "No Mercy: The Hospital"

In Versus mode, when going through the hospital trying to get the elevator, find an oxygen tank and carry it with you until you get into the elevator. Once inside the elevator, choose one of your teammates and throw the oxygen tank at them. They will fall through the elevator floor and die.

Rating 0

Lock people out of elevator on "No Mercy: The Hospital"

Note: This is a very tough trick to do. Once everyone is in the elevator, order one person to get outside of it. To do this correctly, the person that is going outside must be slightly in front of the blood spot of the elevator. That way, the game thinks that it is safe to close the doors. Immediately start the elevator the moment the person starts walking out. If the timing is perfect, it should work. Note: This was done while everyone on the server had a two bar connection, resulting in no lag but causing events in the game to slow down at parts.

Rating 0

Respawn for max health in VS

To "refill" your health as a zombie, run away from the survivors until you see a message claiming you are too far away. You can then end your current life and then respawn back in the fray. Hopefully they won't make it to the safe room before you're back!

Rating 0

Easy win as Infected on "No Mercy: The Hospital"

Before spawning, go all the way up to floor 28 where the elevator lets out. Just outside of the elevator is a generator. Move it in front of the elevator door. If the Survivors know what you are doing, they can move it. Three survivors are required to move an object. However, if you have someone else on the Infected side, they can go a little bit further and move the forklift that is there in front of the doorway.

Rating 0

Safe room door kill

Closing a safe room door on a zombie will kill it.

Rating 0

"Cr0wnd" achievement hint

  • Under the Easy difficulty setting, get an auto-shotgun and find a Witch. Quickly approach the Witch with lights off and force her to rise, then rapdily shoot her head as she stands.

  • Get an assault rifle and charge a power shot (start with pistols, then hold LT + Y + RT at the same time). If done correctly, your character will hold out his/her hand as if to grab an object. If you hit a Witch under the Easy difficulty with the charged power shot, she will die. You will get the "Cr0wned" achievement regardless of whether or not you hit her head.

Rating 0

"Dead Stop" achievement hint

Use a shotgun and run at a Hunter while hitting [Melee] repeatedly to unlock this achievement.

Rating 0

Kick-Ass easter egg

The "Red Mist" achievement is the name of the superhero that is the son of the antagonist, has the awesome red car, and is the fourth superhero you see in the movie.

Rating 0

Free roam camera glitches

  • Note: This has only been tested on No Mercy. Enable the "Play against NPCs only on Versus Live" glitch and kill all of the survivors. Go back to the respawn point and have all of the infected up on the rooftop. Jump down on the Hummer to have it kill all of the infected. Wait a couple seconds and you will now have a free roam camera, like on the PC version of the game. There are no secrets, but there is a mini-city of No Mercy underground that is very interesting.

  • To get a free roam camera without all NPC characters, Have a rigged team where four of your friends are on the NPC team and three of your friends are on Infected. Then, have all eight people jump off. They will all die and you (The Infected) should have a free roam camera. Note: This was tested on No Mercy: The Hospital. Note: This only lasts for a very short time.

Rating 0

See Newburg burning on "Death Toll"

At the end of "Death Toll", you can see the city of Newburg from the "Dead Air" episode burning.

Rating 0

Shortcut on "No Mercy: The Apartments"

To access a shortcut in No Mercy: The Apartments, at the beginning of Part 1, look over the edge of the building down to the street. There is an air conditioner hanging out of a window. Drop down off of the building and land on it. Your life will be reduced to 41%, but you can drop to the ground from it to skip the apartments.

Rating 0

Easy win as Infected on "No Mercy: The Sewer"

  • Being a Hunter is recommended. Before spawning in No Mercy level 3, go all the way to the very end, at the hospital. Once up the ladder, turn to your right to find a dumpster. Move it all the way over to the manhole and one of two things will happen: tt will either fall all the way down, which is bad because the Survivors can move it; or it will partially fall in. The survivors cannot move this at all. If you are a Tank, you can move a car over it, which is better than any dumpster. From here, do not puke on them as a Boomer as it will attract the Horde. The Horde will try to move the object away from the manhole. Then, as Hunters and Smokers, you can just attack them. They may shoot you, but every so often, you can hurt them until finally they die.

  • In the warehouse near the end of the level, right after the area with the gas station and the lift, there is a forklift which you can use to block the door the survivors must go through. When the level starts, do not spawn. Instead, immediately go to the warehouse. When you get there, spawn and start pushing the forklift to the door. To push the forklift, repeatedly attack it. It will move slowly but you will have time to push it before the Survivors reach it. The only way the Survivors can move it is by throwing pipe bombs at it repeatedly.

Rating 0

"Akimbo Assassin" achievement hint

Begin a mission and shoot a couple zombies by using only your pistol. Then, choose the "Take a Break" option and allow the NPCs to complete the level.

Rating 0

Shortcut on "Dead Air: The Crane"

Note: An unpatched version of the game is required. In "The Crane", jump on the fence after climbing on the vent cover. Go across the fence and jump to the other side of the horizontal fence, then turn left and go to the end. Jump up and to the right to an air conditioning unit box on the corner of the next building. Once on the next building, go to the left corner and jump to the top branch of the tree below you. You will lose plenty of health after landing. However, you will be at the next safe room.

Rating 0

Fly on "Dead Air: Runway"

In Campaign Live or Versus mode, hit the machine a few times and jump on top of it in a certain direction to be sent flying across the screen.

Rating 0

Play against NPCs only on Versus Live

This trick is possible with two to four players. While in the lobby, have someone change to any character except for random or infected. Then, have the others 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 but 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.

Rating 0

Zoey has three hands glitch

On the movie poster for "No Mercy", look carefly to notice that Zoey has three hands holding her gun.