Left 4 Dead 2 PC cheats

PC Cheat by: Cheat Masters
Description: From main menu, go to Options and toggle the developer console on. Now you will be able to open your the console by pressing ~ (or the key above Tab).
Type sv_cheats 1 in the console. This will enable the cheats. When you get the message "sv_cvar_cheats_changed_to 1," type in the following codes for the desired effect. *** these cheats are mainly from Left for Dead, and may not work in the sequel.

tongue_range X	(Default 750) Sets the maximum range of the smoker's tongue attack
z_pounce_damage X	X is amount of damage you want to do to survivors
z_witch_burn_time	X is amount of time before a burning Witch dies from fire (does not affect damage caused by fire)
z_health	Change Zombie Health
z_speed	Change Zombie Speed
director_no_human_zombies 0/1	Toggles controllable Boss Infected on any map
director_panic_forever 0/1	Toggles never ending panics
director_force_panic	Forces a panic event
give ammo	Full Ammunition
give pistol	Get Pistol
impulse 101	Spawn Ammo To Your Primary Weapon
give autoshotgun	Spawn auto shotgun
give health	Spawn full health
give gascan	Spawn gascan
give hunting_rifle	Spawn hunting rifle
give molotov	Spawn molotov
give oxygentank	Spawn oxygen tank
give pain_pills	Spawn pain pills
give pipe_bomb	Spawn pipebomb
give propanetank	Spawn propanetank
give rifle	Spawn an Mk 47 (machine gun)
give first_aid_kit	Spawn first aid kit
z_spawn weapon_SMG	Spawn the SMG
god	Invincibility
buddha 1	just like god but you receive damage(sometimes if you are the only survivor left you can't receive damage from infected)
sb_openfire or open_fire (console will tell)	makes your bot teammates shoot nonstop
director_no_mobs <1/0>	No mob rushes
firstperson	Play in first person (default); this cheat is only necessary if thirdperson mode is enabled
Ent_Remove	Removes All Bots
z_witch_damage X	Sets the amount of damage a Witch's attack does
thirdperson_mayamode	Sets the camera to be fixed in place while in either 3rd person or 3rd person shoulder mode Enter once to turn on and enter again to turn off
thirdperson	Sets the camera to be in 3rd person mode
thirdpersonshoulder	Sets the camera to over-the-shoulder 3rd person mode
z_common_limit	Sets the maximum amount of regular zombies
z_tank_health X	Sets the maximum health of the Tank
z_frustration_lifetime X	Sets the number of seconds until the player loses control of the Tank from not attacking survivors
sb_friendlyfire <1/0>	Toggles bot friendly fire damage
director_stop	Shuts off all wanderers, mobs, specials, and bosses
z_spawn zombie	Spawns 1 Zombie
boom	Spawns a active pipebomb under you
fire	Spawns a lighted molotov right on the floor under you
z_spawn	spawns a special infected (infected names: hunter, boomer, smoker, witch,tank, spitter, charger, jockey)
z_spawn mob	spawns a zombie horde
z_spawn boomer	Spawns boomer at location of crosshair
z_spawn hunter	Spawns hunter at location of crosshair
z_spawn smoker	Spawns smoker at location of crosshair
z_spawn tank	Spawns tank at location of crosshair
noclip	Toggles No Clipping Mode
z_witch_allow_change_victim <1/0>	True/False setting that allows the witch to change targets instead or focus on the one survivor that alerted her first
sv_infinite_ammo 1	Unlimited Ammunition
Vocalize	Vocalizes/makes the player say anything like vocalize playereatpills
tongue_fly_speed X	x= amount of speed that you want for the smoker's tongue
z_pounce_door_damage X	x= desired amount of damage to pounce through doors
sb_give XXXX	x= desired entity to give to your bot teammates (the console should give you a list)
retry	You can unlock achievements while using cheats (after entering sv_cheats 1, enter retry)

PC Cheat by: RacialDialTone
Console Commands for the demo of Left 4 Dead 2. Some of them work in the demo, and the ones that do not work will probably work in the full game. There are many more console commands than this and can be discovered by typing a letter and scrolling through the different commands.

[*** You must add -console to the launch options by right clicking on Left 4 Dead 2 Demo, select Properties, and Set Launch options. Or go into the options once the game is started, then the keyboard/mouse options, and check the box to enable the developer console]

Press ~ to bring up the console. To enable cheats you must start a game by going to the developer console and entering in map c5m1_waterfront . Once the level is loaded, enter sv_cheats 1 .

You can also bind any code to a key by typing: bind (key) "(code)"
For example: bind t "z_spawn witch" will spawn a witch every time you press t.

Cheat / Effect
(Cheats with * after the effect are ones that I have tried in the demo and work)
god [0 or 1] / God mode *
give health / Get health *
give adrenaline / Get adrenaline *
give defibrilator / Get defibrilator *
give pain_pills / Get pain pills *
give ammo / Refill ammo *
sv_infinite_ammo [0 or 1] / Toggle infinite ammo *
kill / Kill yourself *
noclip / Toggle noclipping *
upgrade_add incendiary_ammo / Toggle Incendiary Ammo
upgrade_add explosive_ammo / Toggle Explosive Ammo
upgrade_add laser_sight / Toggle Laser Sight
give weapon_grenade_launcher / Get Grenade launcher
give melee / Get hunter claws
give pistol_magnum / Get magnum *
give rifle_desert / Get combat rifle *
give rifle_ak47 / Get AK-47 *
give shotgun_spas / Get SPAS Shotgun *
give shotgun_chrome / Get chrome shotgun *
give smg_silenced / Get silenced SMG *
give electric_guitar / Get electric guitar *
give tonfa / Get nightstick *
give vomitjar / Get a jar of Boomer bile *
give machete / Get machete *
give pistol / Get pistol *
give frying_pan / Get frying pan *
give pumpshotgun / Get pump shotgun *
give autoshotgun / get automatic shotgun *
give rifle / Get M16 *
give smg / Get SMG *
give hunting_rifle / Get hunting rifle *
give pipe_bomb / Get pipe bomb *
give molotov / Get molotov *
give propanetank / Get propane tank
give gascan / Get gascan
give oxygentank / Get oxygen tank
z_spawn spitter / Spawn a spitter *
z_spawn charger / Spawn a charger *
z_spawn jockey / Spawn a jockey *
z_spawn zombie / Spawn a common zombie *
z_spawn mob / Spawn a mob of zombies *
z_spawn witch / Spawn a witch *
z_spawn hunter / Spawn a hunter *
z_spawn smoker / Spawn a smoker *
z_spawn tank / Spawn a tank *
z_spawn boomer / Spawn a boomer *