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1[[quoteright:333:]]˛[[caption-width-right:333:[[BadassBiker Fran]][[StrawNihilist cis]], [[AFatherToHisMen Bi]][[BadassGrandpa ll]], [[ActionGirl Zo]][[NerdsAreSexy ey]] and [[ActionSurvivor Lou]][[NiceGuy is.]]]]˛˛->'''Louis:''' We made it... I can't believe we made it!\˛'''Bill:''' Son, [[YourPrincessIsInAnotherCastle we just crossed the street]]. Let's not throw a party 'til we're out of the city.˛˛''[[DescribeTopicHere Describe Left 4 Dead here. Be ready to fight the horde...]]''˛˛A CoOpMultiplayer FirstPersonShooter developed by Creator/{{Valve|Software}} and proclaimed by its advertising as "the ZombieApocalypse you can play with your friends." ''Left 4 Dead'' reduces the zombie genre to its absolute basics: You are one of a [[RagtagBunchOfMisfits Ragtag Quartet of Misfits]] caught in the middle of the outbreak of a deadly [[TheVirus virus]] that's turning people into bloodthirsty mutants. Your objective is to make your way from safe house to safe house through an area infested with these murderous creatures, and finally reach a pickup point from which to summon the cavalry to spirit you to safety.˛˛Of course, this won't be easy. You have your three pals, and due to the DropInDropOutMultiplayer nature of the game, there are fairly-competent [[VideoGameAI AI bots]] standing by for when you don't have allied players. And don't worry about them hogging the kills: there are plenty of infected to go around. There could be a herd of thirty zombies, or just one extremely powerful mutant zombie, waiting around the next corner. The game's "AI Director" is watching your progress and planning your next sudden encounter; play the same campaign five times and each time will be a different experience. The director drops health packs less often than you need it and spawns a horde of zombies [[WebAnimation/ZeroPunctuation whenever he's bored. Which is all the time.]]˛˛Almost as addictive as the Campaign mode is Versus mode, in which eight players, trading off between rounds, control either the Survivors or the dangerous [[SuperpoweredMooks Special infected]]: the long-tongued Smoker, the lightning-quick Hunter, the nauseous (and explosive) Boomer, and [[SmashMook the Tank]] (there's another type of Special infected -- the Witch, who doesn't react well to flashlights and loud noise -- but like the Horde she's not actually a playable character). The goal of Versus is nominally to make it to the next safe room, but nine times out of ten, you won't. The goal is to ''make it farther than the other team.''˛˛The expansion pack takes it further with the ironically-titled [[EndlessGame Survival Mode]]: "survival" is pretty much [[FailureIsTheOnlyOption the last thing you'll be doing]]. The question is how long you and your friends can hold out against an all-out Infected onslaught before you all die.˛˛The game also received massive critical acclaim for both its Myth Arc style narrative - the parts of the story they don't tell you, as well as the interactions between the survivors - and for its EmergentNarrative, in which different aspects of gameplay combined with elements of randomness mean that every single time you play a new, funny story emerges.˛˛The game would be followed by ''VideoGame/Left4Dead2'' a year after release. Leaks regarding a third installment in the franchise (along with the long-waited ''Half-Life 3'') have been around for years, but an official confirmation of its existence remains to be seen.˛˛Please take a look at the [[Characters/Left4Dead character sheet]] to learn more about the characters and the ShoutOut page for countless [[ShoutOut/Left4Dead pop culture references]].˛˛Due to the number of examples, they have been divided into categories.˛˛Not to be confused with the trope of LeftForDead. See also ''VideoGame/ResidentEvilOutbreak''.˛˛----˛!!Left 4 Dead provides examples of:˛˛[[foldercontrol]]˛˛[[folder:General Media Tropes]]˛* FiveFiveFive: Parodied on a poster in ''No Mercy''. The poster lists the phone number for the emergency hotline, but only the first three digits, 555, are visible. The rest of the number is torn off, [[ making the fake 555 redundant.]]˛* AbandonedHospital: Mercy Hospital in the ''No Mercy'' campaign.˛* AbandonedWarehouse: Nearly every campaign features one.˛* AbsurdlySpaciousSewer: At least four of the campaigns feature sewers that are big enough to accommodate whole mobs of zombies for the players to fight off.˛* {{Acrofatic}}: Boomers, despite their size and tendency to explode, can jump off objects from moderate heights and suffer no injuries before ambushing the survivors.˛* TheAloner: Any Survivor can become this if all but one die. The sequel even adds a mode that invokes this.˛* {{Apocalypse How}}: Class 1. In-game posters published by the government indicate that the entire United States has fallen, with only a few surviving cities and towns occupied by the Military which are still standing. By the end of Left 4 Dead 2, the entire US has been abandoned by the government who now operates on a group of cruise ships controlled by the US Navy.˛* {{Apocalypse Wow}}: In Death Toll's finale at the Boathouse, you can see the city of Newburg across the River engulfed in flames and a few explosions lighting up. In Dead Air, you visit the city, and see that this is the result of bombing by the US Military. You can see distant collapsed buildings, torn skyscrapers and roads which have been ripped apart. In Dead Center, you can see the distant skyline of Savannah in chaos and fire, whilst The Parish shows the New Orlean's skylines in flames.˛* AsTheGoodBookSays: You can find a reference to Exodus 9:15 ("For by now I could have stretched out my hand and struck you and your people with a plague that would have wiped you off the Earth.") in a saferoom in Death Toll.˛* BackgroundHalo: In the poster for ''The Sacrifice''.˛* BackToBackBadasses: A common occurrence when a horde spawns while the team's in a wide-open area.˛* BadassBeard: Bill.˛* BadassCrew: The Original and New Survivors. '''"Curing the infection one bullet at a time."'''˛** The Angels of Death, an apparently successful gang of survivalists mentioned on several saferoom walls.˛* BadassGrandpa: Again, Bill. Coach may count.˛* BadCopIncompetentCop: The military and CEDA respectively. In the comics, the military is merely useless instead.˛* BalconyEscape: Used a couple of times in apartment complexes. Notably, the survivors escape a Tank in the intro by having a balcony collapse on it.˛* BareFistedMonk: Deconstructed in Survivor graffiti, believe it or not.˛--> "October 2nd Johnny killed 12 Infected with his bare hands"˛--> "October 4th Johnny was killed by friendly fire"˛* BilingualBonus: A piece of safe room graffiti in The Sacrifice is in Japanese - Louis gives the translation, but only the English half. Fluent speakers alone would be able to read aloud the characters he translates.˛* BittersweetEnding: The final part of the comic shows [[spoiler: Bill jumping off the bridge to restart the generator so the bridge can be fully raised. He gets ambushed by three Tanks and gets killed, but the survivors were able to outlast the horde and take the boat to the Florida Keys to spend the rest of their lives in, thanks to Bill's HeroicSacrifice.]]˛* ByTheLightsOfTheirEyes: The Witch. See PowerGlows below.˛* ClimacticElevatorRide: In the No Mercy campaign, the end of the penultimate stage involves traveling twenty-five floors up an elevator where some conversation takes place.˛* ClownCarBase: Occasionally, you may see an entire horde (thirty or so Infected) emerge from a closet or bathroom.˛* ClusterFBomb: Downplayed - the survivors say "shit" a ''lot''.˛-->'''Louis:''' Shit!..Shit!...Shit!....SHIT!˛* CoolCar: The armored van at the end of ''Crash Course'', which quickly catches the survivors' attention as a means of escape.˛* CosyCatastrophe: Francis has little difficulty adjusting to the ZombieApocalypse.˛** [[spoiler:They eventually travel to Florida to hold out the apocalypse there.]]˛* CrazySurvivalist: The survivors, with off-screen {{NPC}}s and graffiti taking it to extremes.˛-->[[MemeticMutation NO ZOMBIE IS SAFE FROM CHICAGO TED]]˛* CreditsGag: The end of each campaign has a credits roll which actually consist of statistics for the players (most infected killed, most headshots, etc.), ending with a disclaimer reading, "[X number of] zombies were harmed in the making of this film."˛* CrypticBackgroundReference: The only parts of the story that are completely laid out for you are from the single 4-chapter comic ("The Sacrifice"), and the short character bios that each of the Survivors get ([[AllThereInTheManual neither of which are found in-game]]). The rest of the plot that's given to you will only be through random (often campaign-specific) character dialogue, about 99% of which isn't even guaranteed to trigger (usually requiring [[RewatchBonus multiple play-throughs]] if you want to catch everything), or occasionally from significant pieces of the map, but most of all from the writings on the walls of different saferooms (and occasionally elsewhere) of other people who have passed through that area, describing bits of their experiences as messages to others, agreement or disagreement with what the military is/was doing, just how bad CEDA failed, how fast somebody changes into a zombie after being infected, and so forth, but not even those people are in 100% consensus about whatever's been going on, and [[RiddleForTheAges nobody really has any idea what even]] ''[[RiddleForTheAges started]]'' [[RiddleForTheAges the whole thing.]]˛* DeadHandShot: The box art.˛* DeathWorld: Umm, zombie apocalypse. Par for the course.˛* {{Dedication}}: If you die during the finale you don't get to respawn, but as long as at least one character escapes, the credits will start with "In memory of [Player Name]".˛* DidYouJustFlipOffCthulhu: The only way to distract a Tank from pummeling a downed survivor to death is to melee him, which otherwise serves absolutely no purpose at all. ˛** Lampshaded with Francis in The Sacrifice comic˛-->Francis: Hold on. I gotta give this Zombie the finger.˛* DroughtLevelOfDoom: ''Left 4 Dead'' practically runs on this trope.˛* DungeonBypass: Guarding the doors and windows is all well and good, but more often than not the horde just crashes through a wall.˛* DVDCommentary: Like all Valve games, both Left 4 Dead games have a commentary mode, where you can play a campaign that contain commentary nodes which will play commentary audio from the developers. You're locked in Easy difficulty and zombies will ignore you. Naturally, you can't earn achievements this way.˛* ElevatorActionSequence: The fourth level of No Mercy requires holding off the horde while waiting for the elevator. Subverted on the elevator ride itself; any first time player will constantly give the missing elevator panel nervous glances.˛** The panel is intact in the sequel's port, to counter Spitters getting a cheap shot.˛* EliteZombie: The special infected.˛* EscapeConvenientBoat: Quite a few. One of them actually kicks them out, though it's only referenced in dialog.˛* EverybodysDeadDave: The only non-zombies you hear from in the game are the playable survivors, the (sometimes) unseen pilots and drivers who rescue you at the end of each campaign, the occasional psycho/weirdo, and occasional gunfire off in the distance.˛* ExcusePlot: It's basically "You wake up one day, everybody except you and 3 other misfits with eccentric personality quirks are zombies. Try not to get killed".˛* FakeUltimateHero: '''CHICAGO TED''' is regarded as the biggest badass in the history of badasses by plenty of players; however, it never has been stated or hinted as to exactly ''what'' he did to earn this fame.˛* FilmPosters: One for each campaign.˛* FireForgedFriends: The Survivors again.˛* FlyAtTheCameraEnding: The helicopter in ''No Mercy''.˛* ForegoneConclusion: The poster for the [[KobayashiMario Survival Mode]]-only level, The Last Stand.˛** Both the campaign and the comic for The Sacrifice, given that they came out after The Passing.˛* FourPhilosophyEnsemble: Francis as Cynic (hates everything), Louis as Optimist (hopeful), Bill as Realist (experienced) and Zoey as Apathetic (zombie fan).˛* GameMod: Countless ones, this being a Source Engine game and all.˛* HeroicSacrifice: The chopper pilot in ''No Mercy'' was making repeat trips into the infection zone, [[spoiler: getting infected for their trouble. They still kept the rotors spinning right up until the bitter end]].˛** The entire purpose of The Sacrifice DLC.˛* HideYourChildren: The Infected are invariably adults. The accepted [[HandWave justification]] for this is that the virus that turns people into infected is lethal to children.˛* HollywoodDarkness: Valve uses a fog effect in some areas to mimic the Hollywood technique of "smoking the set", which conventionally uses a fog machine to help create atmosphere in "dark" areas. The fog catches the little light available, which makes everything slightly brighter, and allows viewers and players to see the silhouettes in the distance when they would otherwise be indistinguishable against the dark background.˛* HopelessWar: ''"We're fightin' a war of attrition against a horde of brainless killing machines... I ain't exactly optimistic about our chances!"''˛* HumansAreTheRealMonsters: Though a common trope in zombie media, it's totally subverted here. Not even the United States Military can hold off the infected, let alone individual bad guys.˛* IdleAnimation: The infected alternate between leaning on the wall, sitting in despair, barfing up their guts (literally) and killing one another. The survivors alternate between stretching, wiping their faces, or rubbing their noses.˛* ImColdSoCold: The game has a music track for being close to dying while incapacitated explicitly called '''I Am So Cold'''˛** In some unused dialogue in the first game [[WhatCouldHaveBeen would have been used]] in a cutscene immediately after completing the "No Mercy" campaign implies that the helicopter pilot had been infected before he picked them up, and was about to make the transformation mid-flight. The pilot then uses the "I'm cold" line.˛** It was cut it from the game because the developers felt that it would be like punishing the players for completing the campaign.˛*** In the DLC campaign "Crash Course", it's revealed that the chopper they were in ended up crashing, anyway. They still all survived. Unscathed, too.˛* IncendiaryExponent: Every Special Infected can attack you whilst on fire. Hunters will actually do more damage while aflame, and tanks become faster.˛* IncrediblyLamePun: The characters and achievements are quite fond of these.˛* InMemoriam:[[invoked]] Played with to humorous effect: players who do not live through a campaign's finale have the "credits" dedicated to them.˛* TheImmune: [[spoiler:The main reason why they survived all the shit hurled at them is that they're immune. (At the end of Left 4 Dead 2 the military forces they have contacted by radio refer to them as 'carriers' which implied that while they themselves are immune, they may infect normal humans.)]]˛* IntercontinuityCrossover: With ''VideoGame/PAYDAYTheHeist'', [[ no less.]]˛* ItsQuietTooQuiet: An area is usually only clear of zombies after something big has happened... Or ''about'' to happen.˛** Louis explains this well in the comic:˛--> Zombies are like... piranhas. They ain't too choosy about who they attack, you know? [...] Point bein', you jump into a lake fulla piranhas and you ain't gettin' attacked? Means there's a shark around.˛* {{Jerkass}}: ˛** Francis is often belligerent towards Louis and Bill, who insult him back. [[VitriolicBestBuds It's really just friendly ribbing among friends]].˛** The Survivors think of Crazy Church Guy as one, and for good reason considering the fact that [[spoiler:he ''purposely'' rang the church bell and summoned a horde of zombies to attack the survivors]]˛* LastStand: Survival mode.˛* LeaningOnTheFourthWall: Done in the ''Sacrifice'' comic with Zoey and [[spoiler:her dad.]]˛-->'''Wade''': Remember those zombie movies [[spoiler: I used to sneak you into when you were a kid]], Zoey? ... [[ThisIsThePartWhere Remember the part in all of 'em where]] [[spoiler: they had to shoot the one guy before he turned]]?˛-->'''Zoey''': Heh. [[spoiler: *sniff*]] Yeah. We always made fun of that part ...[[spoiler: [[TearJerker '''BANG''']]]]˛** The campaign itself has a bit of this, too - Bill's plan for escaping the infection is to boat to a secluded island, as he says "As far as we know, zombies can't swim." [[SuperDrowningSkills They really can't.]]˛* {{Leitmotif}}: Every Special Infected gets two of their own tunes, one that plays when they spawn, and another that plays while they're attacking a Survivor.˛* LeftForDead: A regular occurrence in the rush for the rescue vehicle. With an incoming Tank that must not enter the rescue vehicle, this choice must be made often.˛* LighthousePoint: The setting of the "Last Stand" campaign of Survival mode. Notably, it's the only map not properly reintroduced to ''[=L4D2=]''.˛* MadeOfIncendium: The Infected can be lit up from somewhat understandable sources, such as Molotov cocktails and to a stretch, incendiary ammo. However it's most obvious when the zombies toast themselves doing relatively ''not-deadly'' things such as vaulting over burn barrels or stepping on smoldering coals. Said things at their WORST would inflict minor burning and welting. The playable "Special Infected" can be set ablaze by small sources as well, and will actively burn for up to an entire minute (depending on HP) before suddenly dropping dead; rendered to a charred heap. Strangely, incendiary ammo will only last for a few seconds before being put out.˛* MadeOfPlasticine: It's not uncommon for the basic infected to be graphically dismembered by a shotgun blast, a few stray bullets, or ''being bashed with a rifle butt.''˛* MadnessMantra: The Church guy; "''Better safe than sorry''."˛* MagicPants: The Tank's grown too big for a shirt, but his pants are practically undamaged.˛* MessageBoard: Safe room graffiti really acts like this, although people who leave the safe room usually don't return. Ever.˛** Referenced in one of the safe room graffiti, wherein [[{{GIFT}} a ton of "posters" mock]] an [[PurpleProse over-the-top, saccharine love epitaph]]. [[MemeticMutation Cool story bro!]]˛* MilitariesAreUseless: In the comic ''The Sacrifice'', the soldiers are quite bad at fighting zombies. If [[RagtagBunchOfMisfits three civilians and a Vietnam veteran]] can kill hundreds of infected with hand-made weapons in the worst possible places (airport, hospital, church), do you think that trained soldiers in a base with twenty feet high walls, barbed wires, artillery, choke points and choppers can do the same? Of course they can't, they're soldiers. Partially justified in that the soldiers were under a communications blackout and located in an extremely remote location where it is unlikely they would have any opportunities to gain knowledge about the infection.˛** Justified in that they aren't immune, and so probably wouldn't have as much first-hand, close-up experience dealing with the infected as four people who fought through what was apparently the most populated infected zones there was.˛* MonsterCloset: While the closets are not hidden, several contain absolutely nothing except respawned [[PlayerCharacter survivors]]. However, sometimes a Horde may spawn in it.˛** Also, some walls are fragile and allow zombies to burst through them.˛** Since the AI Director chooses which closets are used, exploring players will find empty dead ends that could have been monster closets.˛** Hordes of 30 zombies spawning out of a closet is pretty much one of the main game mechanics.˛** At least in the spirit of this trope, though, as you play ''Left 4 Dead'' or ''VideoGame/Left4Dead2'', you will encounter plenty of zombie configurations that will make you stop and ask, "How the hell did this happen? How did these guys get here? Why did they stay?"˛** It can also lead to unintentional hilarity when a witch spawns in a closet. Open door, toss in molotov, close door, wait for the screaming to stop. Repeat as needed.˛** As the Versus game mode is PlayerVersusPlayer, it isn't unheard-of for particularly sneaky or particularly evil [[EliteZombie Special Infected]] players to take advantage of small, ignored closets by sitting and waiting until Survivors pass by...or coming up behind them from what they thought was a safe zone.˛* MultipleReferencePun: The "[=Cr0wned=]" achievement, earned by headshotting a Witch, makes three references at once -- the crown, or the top of your head (and the injuring thereof); "[[LeetLingo 0wning]]" an opponent; and crones, or ''witches''.˛* MusicalSpoiler: Musical warning is given for when a horde appears, a tank appears, or when a witch is nearby. It also plays softly whenever any special infected are nearby, making those who know each one's theme music able to know one's nearby even without hearing them or seeing them.˛* NearVictoryFanfare: "Skin of our Teeth", a fast-paced, intense tune that plays when the rescue vehicle arrives.˛* TheNicknamer: Francis has a tendency to call his team by pet names on occasion, such as calling Louis "Louie." He'll also call the Hunter cowardly names like "little wussy" and "sweatshirt-wearing sissy."˛* NightOfTheLivingMooks: The game pretty much shuffles the Horde's character models at random. The sequel give so much variety of appearances for individual parts of the zombie that the chances of seeing the exact same zombie twice is maybe 1:1000.˛* NoAnimalsWereHarmed: Parodied, "X zombies were harmed in the making of this film."˛* NoBikesInTheApocalypse: Usable vehicles are ''always'' fuel-powered, no exceptions. And they never have any fuel in them, either.˛* NonFatalExplosions: [[ZigZaggingTrope Zigzagged]]; while explosions from grenade launchers, pipe bombs, propane/oxygen tanks and [[ExplodingBarrels barrels]] will deal lethal damage to any infected within range, they'll hurt survivors for maybe 5-10 damage at most on [[HarderThanHard Expert]].˛* NotUsingTheZWord: Played straight ''and'' averted. The survivors call them zombies, but subtitles consistently refer to them as "infected" regardless of the dialogue. The military is fine using the term "walking dead", which would be abbreviated as "WD" and then transliterated as "Whiskey Deltas".˛* OhCrap: The usual reaction the player characters have when a Tank appears.˛* OffscreenMomentOfAwesome[=/=]TheLastDance: [[spoiler:Bill's death, fighting three tanks.]] Only seen in the comic, though it can be played out to some extent in the Sacrifice campaign.˛* ThePowerOfFriendship: Literally. ''Nothing'' will get you killed faster than leaving your fellow survivors behind and trying to Rambo your way through the next level alone.˛* RealIsBrown: Used for how a zombie would see the world. Players taking the role of the zombies in VS mode will see the world completely brown.˛* RoomFullOfCrazy: Church Guy's safe room.˛--> [[MadnessMantra better safe than sorry better safe than sorry better safe than sorry]]˛** A couple of safe houses are covered in bizarre ramblings, which other survivors mock or show horror at.˛* RunningGag: ˛** Francis' berating of Zoey for shooting a zombified pilot, which continues when the survivors in ''2'' berate Nick for doing the same.˛** Francis' cover story and mistaking zombies for vampires.˛---> ''Don't worry, we're cops!''˛** Francis hates everything. Seriously. Current count: Vans, Trainyards, Hospitals, the woods, Lawyers, Doctors, Ayn Rand, tunnels, stairs, elevators, planes, mazes, barns, helicopters, turnpikes, cops, water, Canada, Canadians, Zombies, Infected, His Traveling companions, islands, etc.˛* SchmuckBait: Go ahead, play some Midnight Riders at the wedding. You know you want to. [[TemptingFate We're sure the bride won't mind.]]˛* ScreamsLikeALittleGirl: Francis, when he is attacked by a Hunter or when downed.˛* SeanConneryIsAboutToShootYou: Several of the campaign posters.˛* ShakyPOVCam: A touch in the opening cutscene for the first game. [[JustifiedTrope Makes sense]], considering Versus Mode.˛** The screen will also shake if a [[SmashMook Tank]] is closing in on you.˛* ShamelessSelfPromoter: Oh, Valve, you sly dog:˛--> '''Zoey:''' I love Steam.˛--> '''Francis:''' Oh yeah. I love steam. [[SelfDeprecation I just hate the pipes.]]˛* ShipMates: In-universe example--Ellis makes a suggestion to Rochelle that her and Francis should double date with him and Zoey.˛* ShipperOnDeck: Rochelle and Coach don't mind pushing Ellis towards Zoey. [[{{Jerkass}} Nick... not so much.]] Though even he will sometimes go along with it too.˛* SinisterSubway: The second level of "No Mercy" goes through a subway. It is filled with zombies, caved-in tunnels, crashed train cars, dead bodies and signs that it was being used by refugees.˛* StandAloneEpisode: All of the campaigns in the first game start with the discovery of an evacuation point and end with the survivors successfully escaping. The developers originally planned to have the campaigns lead in to one another, after the survivors escape but have their escape method fail somehow, but then found that it was too depressing to succeed only to learn how that you'd ultimately failed. Averted in the second game, where the campaigns lead directly into each other. In addition, Crash Course ties together No Mercy and Death Toll, and The Sacrifice comic confirms that all the campaigns from the first game are tied to one another (and, of course, tie into... well, The Sacrifice and The Passing.)˛* StupidityIsTheOnlyOption: In Death Toll, you ''must'' lower the sewer bridge to get across, causing an alarm and a horde, and you ''must'' lower the forklift, causing it to noisily smash some glass and attract a horde. And in the ported version of Dead Air, you ''must'' walk through the metal detector in the penultimate stage, setting it off and triggering, you guessed it, a horde.˛* SuspiciouslySpecificDenial: PlayedForLaughs in one of Rochelle's random speeches when you come across a medkit. She'll claim there's no medkits here.˛* TechnicallyLivingZombie: The Green Flu doesn't kill its victims, so this applies to all the Infected.˛* TerrifiedOfGerms: Averted, the survivors don't mind being covered in zombie guts. Or fishing pills out of urinals.˛* {{TheEndOfTheWorldAsWeKnowIt}}: The entire continental US has been overrun with infected hordes, the US Military survives with only a fraction of its intact forces and no long-term plans for rebuilding society, let alone restoring order on the mainland.˛* TheSmurfettePrinciple: Due to the genetic nature of immunity, men have a 3:1 chance of being immune compared to women, which is why there is only one girl in both sets of survivors. Assuming humanity survives this Infection, expect GenderRarityValue to come into play.˛** Averted in the Arcade Port. There are two guys (Yusuke and Blake) and two girls (Hirose and Sara).˛* TheTetrisEffect: Play the game for a good hour or so. Close your eyes. See the zombie horde rushing towards you?˛* ThisIsGonnaSuck: Bill's reaction in the intro movie after a car alarm goes off.˛--> This is gonna get bad.˛* TokenMinority: Louis in the first game. Averted in the second game with Coach and Rochelle.˛** The second game takes place in the American South (starting in Georgia and ending in Louisiana) where there are a larger number of Black Americans. ˛* TyphoidMary: All of the playable survivors are asymptomatic carriers for the virus.˛* TheUnintelligible: The Charger is clearly saying ''something'', but no one can really agree on what it is.˛* UnderestimatingBadassery: Implied. The military takes Bill and Zoey -- an old man and a young woman -- out of the cell (rather than Louis and Francis) to be examined by the doctor. The doctor's bodyguard pokes them with his gun one too many times. ˛* WellIntentionedExtremist: The military and government in general is full of them. They imprison survivors (actually carriers) without providing information to them about what happened, execute crowds of panicked civilians and bomb entire cities regardless of whether or not there are still survivors in them.˛* WhatHappenedToTheMouse: The loose ends of the people that rescued the [=L4D1=] survivors are tied up in the Sacrifice comic,[[spoiler: they all turn or can't stand the survivors]], [=L4D2=] shows or explains what happens to all in the next campaign.˛* WhereAreTheyNowEpilogue: Although not in the game itself, WordOfGod has stated that ''Left 4 Dead'''s survivors [[spoiler: do make it to the Florida Keys via boat as they planned]] after the end of The Sacrifice. [[VaporWare Thanks to Valve's track record on making third installments,]] they probably won't be giving us any further explanation on what happens to any of the survivors for a very, very long time. Left 4 Dead 2's survivors are transported to a fleet of cruise ships by the US Navy at the end of the Parish.˛* WhoWillBellTheCat: At one point in "The Sacrifice", the survivors' path is blocked by a boxcar with a Tank in it, and someone has to open it up. Needless to say, no one's particularly thrilled at the prospect.˛* XtremeKoolLetterz: Left. 4. Dead. No explanation should be necessary.˛* ZombieApocalypse: Duh.˛* ZombieGait: How individual zombies walk until they see you.˛* ZombiePukeAttack: Boomers. And their puke attracts ''more'' zombies!˛[[/folder]]˛˛[[folder:Meta (Community/Developer/Supplemental Material) Tropes]]˛* AllThereInTheManual: The opening movie does a superb job explaining how to not die.˛* ArtisticLicenseEngineering: Specifically Architectural Engineering; some of the maps feature buildings with impractical or outright impossible layouts for normal use. The offices in Death Toll's Riverside (the ones immediately before the street crescendo event) have no interior doors in them. The players enter and exit through a balcony on either side, so how would the office workers normally enter?˛* ArtisticLicenseLaw: The obligatory scoped weapon is named the "Hunting Rifle". In Pennsylvania, where the game takes place, hunting with a semi-auto is illegal.˛* BagOfSpilling: The intro cinematic shows all the survivors using guns that they don't start with. But during that intro, they either drop them, run out of ammo, or are disarmed, and so when the game opens they're just toting pistols. Additionally, this happens at the opening of each campaign as well.˛* BaitAndSwitchBoss: In the Sacrifice comic, one of the soldiers who loses his mask is immediately abandoned by his group, and begins to turn, but when the survivors encounter him, he's still capable of using his gun. He appears when no zombies are attacking, just after Louis made his analogy about "If the piranhas aren't biting, it means there's a shark around". However, this sergeant is not the "shark" - Bill knocks him to the ground easily. The "shark" is the tank that knocks the guy's head off as it runs after the survivors.˛* CharacterFilibuster: The ''Crash Course'' campaign features a safe room with a wall covered in a '''''massive''''' PurpleProse poem... and equally-''classy'' replies to it such as "QQ" and "Cool story, bro!"˛* DarkerAndEdgier: The Sacrifice comic zigzags between this and more snarks per mile than the games.˛* DeliberatelyMonochrome: After being downed and revived twice, you see the entire world in black and white, complete with blurry peripheral vision and red item highlights. If you're not healed, you ''will'' die if you're downed a third time. The developers included this because playtesters were frustrated when inexperienced players were repeatedly going down and delaying the group.˛* DirtyBusiness: In order to halt the spread of the infection and save what ever non-infected people they can, the military in TheBigEasy made it their policy to gun down carriers (people who don't turn but can spread TheVirus) by the hundreds, maybe thousands. Whether this makes them AntiHero or [[KnightTemplar Knights Templar]] is open to debate.˛* DownerEnding: ''The [[ExactlyWhatItSaysOnTheTin Sacrifice]]''.˛* EasterEgg: Found among the apartments in ''No Mercy'' is [[VideoGame/{{Portal}} "The]] [[VideoGame/TeamFortress2 Orange]] [[VideoGame/HalfLife2 Box"]] cereal.˛** In the same campaign, the train station has ads for "Orange Box Juice".˛* EdgeGravity: If your character steps off a ledge, he or she will automatically dangle off the ledge, holding on with their hands for dear life for as long as they can until a teammate helps them.˛* ExplodingBarrels: In ''The Sacrifice'' campaign.˛* FollowTheLeader: ˛** High Voltage Software's ''The Grinder'' looked to several people like "''Left 4 Dead'' Wii" upon its first announcement. It's still an FPS on the Wii, but the Xbox 360 and [=PS3=] versions have changed formats to a top-down shooter, making it more like a SpiritualSuccessor for High Voltage's own ''VideoGame/HunterTheReckoning''.˛** ''VideoGame/PAYDAYTheHeist'' is basically "''Left 4 Dead'' as a crime simulator" - which Valve and Overkill have run with, going so far as to make a mission for ''PAYDAY'' actually set in Mercy Hospital.˛** ''VideoGame/TheEndTimesVermintide'' is just as blatantly influenced as ''Payday'', with the special enemies, inventory slots and health mechanics practically copy-pasted from ''Left 4 Dead''. Again, critics mostly agree that this isn't a bad thing.˛** Tired of waiting for ''Left 4 Dead 3''? Then try ''VideoGame/WorldWarZ2019'', which is also a co-op squad shooter in a ZombieApocalypse. ˛* GameMod: Being a Source-engine game, there was the obligatory deluge of custom campaigns and replacements for models and sounds.˛** Left 4 Dead in fact originated as a special game setup for ''VideoGame/CounterStrike'' (bots with knives only), which itself originated as a mod for VideoGame/HalfLife1.˛* {{Griefer}}: Being a team-based game, it is extremely easy to grief other players. Even if the griefer gets kicked, they can just join a new game and do it again to others. This also results in HeelFaceTurn because you never know who will be the first to shoot you dead when it is time to escape.˛** The mutation, Room for One, is all about griefing your team when the rescue arrives since only one survivor is allowed to escape instead of the whole team.˛** The griefing problem has been eased somewhat by [[ the 2011 holiday patch]] that allows players to block a griefer from joining any of their games.˛* LeeroyJenkins: Mostly applies to newbies who keep making common mistakes, such as running ahead of everyone (which usually gets them killed and are too far away to be saved in time), angering a Witch without having the right gun for it (only shotguns can kill her instantly with a well placed shot connecting all pellets, and even then, only a headshot will work on higher difficulty levels), or flinging Molotovs like a hot potato and setting other players on fire from it.˛** Oh, there's more. See the trope page itself for the huge list.˛* LetsPlay: Both games have one on the Website/SomethingAwful forums; the one for the first game is [[ here]].˛* Letters2Numbers: The title.˛* LighterAndFluffier: Alexandria Neonakis' adorable cartoony designs for the Special Infected, which appear on the licensed Christmas cards, previous Valve Store site headers, and even spawned a series of [[EverythingsBetterWithPlushies plushies]] that make the various Infected's signature noises when squeezed. So far, they've released Boomer, Hunter, and Tank, although a prototype of a Jockey hat is floating around online somewhere.˛* TheMillstone: They show up a lot more than in most online games (or maybe the focus on teamwork just makes them a lot more obvious).˛* MythologyGag: Bill, during early development, shared his last name with ''VideoGame/HalfLife'''s Barney Calhoun.˛* OnlySixFaces: Played straight.˛* OurZombiesAreDifferent: Of the infected, easily-enraged sort much like in ''Film/TwentyEightDaysLater'' and various types of {{Elite Zombie}}s.˛* PoorCommunicationKills: This will literally be your game ender online if you or the rest of your team fail to talk or at least call for help if being pinned by the infected, especially in Realism and Realism Versus modes where you can't spot each other with glows anymore. Lots of games have been lost due to people simply not speaking up.˛* PunBasedTitle: You play as ''four'' survivors, who are left for dead.˛* RageQuit: Consult the ''Webcomic/VGCats'' [[ guide]].˛* SeriousBusiness: Handfuls of people take the game very seriously and will scream at you or call a vote to get you booted if you do anything they don't like (not the TooDumbToLive type player mind you). More noticeable in VS mode where people will yell at you for not saving them from the infected quick enough and/or yell at you if you don't do enough damage to survivors or just plain outright miss your attacks. [[note]]In fact, in most Versus games, when someone becomes the Tank, all the infected players put all their hopes on the Tank player and expect him or her to to kill the Survivors in one go. What most people don't realize that the Tank alone cannot kill the Survivors unless the players are extremely stupid and the Tank needs support from the other infected. If you're the Tank and get caught on fire or die without killing at least one player, expect most people to call you a fail Tank.[[/note]]˛* ShaggyDogStory: As it turns out, the Survivors [[spoiler: are Carriers of the infection, not directly affected by the disease as they fight to safety, [[ZombieInfectee only to infect those around them]], rendering it {{All For Nothing}}. ]]˛* SlidingScaleOfContinuity: The game is level 0 (Non-Linear Installments) without DLC. Each level is completely stand alone as far as the game leads you to believe. With the release of the DLC, it jumps to level 3 (Subtle Continuity) as we find out that the survivors ended up transitioning from one area to the next. ˛* SuperPowerLottery: As far as zombies go, the Tank and Witch have won this.˛* TheVirus: If you're... unlucky enough, you turn into a constantly crying, always-guilty Witch, an exploding fatass, get Gene Simmons' tongue, become a flying Parkour expert, or turn into the [[Comicbook/IncredibleHulk Hulk]].˛* VisualPun: The boxart is a zombie's ''left'' hand holding up ''four'' fingers, with the thumb ripped off. Same thing in the game's intro.˛** In the trailer for The Sacrifice, a common infected who gets hit by a car falls to the ground and only its hand is visible on the camera. Its thumb is missing, and its hand twitches so to appear to be holding up the number two briefly; making reference to the box art for the second game.˛* WhamLine: For many an Infected team, seeing "You will become the Tank - Get ready to attack the survivors"[[note]]or "Someone is about to become the Tank" if you aren't chosen[[/note]] means that [[ThisIsGonnaSuck shit is about to get real]], as a Tank's actions (and the Survivors' response to it) can singlehandedly make or break a Versus round.˛* WrongGenreSavvy: Zoey's dad in the supplemental comic. [[spoiler: He and Zoey loved watching zombie movies, so when he gets bitten, he's well aware of the ZombieInfectee trope and has her kill him before he turns. Turns out Zoey carried a genetic immunity to the disease, and her mom didn't, so he very likely would have been immune as well.]]˛[[/folder]]˛˛[[folder:Gameplay Tropes]]˛* AntiFrustrationFeatures: ˛** If you don't aim wisely, you'll find yourself running out of ammo ''very'' fast even on the lower difficulties. Luckily for you, the ammunition dumps are infinite if somewhat rare, and you get up to two trusty pistols with infinite ammo that work nicely against pretty much everything except witches and tanks. Furthermore, on sub-Expert difficulties, the Director designs the drops so that you always get what you need to take down whatever he's about to throw at you, giving GenreSavvy players an advance warning for the horde that's about to come.˛** During Versus mode, it is impossible for all four players on the Infected team to get 'pinning' Special Infected (Smokers, Hunters, and in ''2'' Jockeys and Chargers). This is so that a well-coordinated team can't instantly incapacitate every survivor at once.˛** FriendlyFire will not apply if your shot also hit an Infected. This means you don't need to worry about being too precise when it comes to killing Special Infected that have a Survivor pinned, for example.˛* ArtificialBrilliance: The Special Infected are quite smart and are very wary of the presence of the players. Hunters and Boomers will always try to hide around corners or behind thick shrubs so that they can ambush the players. The two may also tag team players if a player is caught by a Smoker. Smokers will attempt to run away if their attack fails and Hunters will escape by repeatedly jumping away if they are shot at from a distance. Tanks can try to avoid fire the player makes, assuming the player sets the fire off too early. While they can be quite stupid at times, it doesn't happen too often.˛** Hunter and Smokers will occasionally retreat if spotted, and try to get to places that the survivors can't reach easily before attacking.˛* ArtificialStupidity: Although not too horrible, the Survivor AI has many infamous quirks. This is a great reason to play the game with actual people.˛** Boomers sometimes hide behind street lights & most zombies sometimes swerve away from their target at the last second to try to break through a door that isn't in the way. They'll also run through fire to get to you.˛* AuraVision: Used to find teammates as Survivors and used by Infected to find Survivors health and location.˛* BackStab: Shoving an idle common from behind is a OneHitKill.˛* BadBoss: The Director in Versus mode. Between showering the survivors with first aid kits and often not bothering to send a horde after a boomer attack, it clearly hates the Infected players even more than the Survivors.˛* BoomHeadshot: Played straight, to YourHeadAsplode levels with common infected.˛** Mercilessly averted with the Tank, which receives the same damage from headshots as being shot anywhere else.˛* BottomlessMagazines: The players must reload them, but they have endless ammunition for their sidearms and supply caches provide infinite replenishment for your main weapons.˛* CallingYourAttacks: Played straight by survivors throwing grenades, invoked with the special infected's vocalizations giving them away.˛* ChandlersLaw: The Director AI pulls this quite frequently: stay in one place too long instead of advancing and you'll get a bunch of Special Infected coming at you. ˛** It's also more likely to send a Zombie Horde at the Survivors at any given moment the slower they're progressing through the level. This can be something of a vicious cycle when playing on Expert.˛* CherryTapping: It's possible to kill even the Special Infected, except tanks and witches, just with the secondary melee attack. Just [[TooDumbToLive don't try it on the Boomer]] - knock him back once to get him away, then shoot from a safe distance.˛* {{Chiaroscuro}}: Actively exploited by the developers to guide the players, after they noticed playtesters' [[DarknessEqualsDeath tendency to move toward the brightly lit areas]]. As stated on the page, custom maps that ''don't'' follow this idea are known for being extremely hard and it's not just because it's hard to see; by removing a core game play aspect players (who are accustomed to having light guiding where to go) are forced to try to find out what the devs intended the hard way. ˛* CombatResuscitation: Players who run out of health are incapacitated, becoming immobile but still able to use a pistol to help clear away infected while their friends help them up. However, a player can only be incapacitated twice, after which their screen will [[InterfaceScrew turn black and white]], a HeartbeatSoundtrack will be heard, and if a first-aid kit is not used on them, their next incapacitation will result in their death. Dead players can later be revived by finding them trapped in a closet later on.˛* TheComputerIsACheatingBastard: Unusual, in that the Director is supposed to be continuously tweaking the challenge of the game up and down based on how well the players are doing. However, on Expert, its moments of mercy are '''''extremely''''' brief.˛** This goes for the survivor bots too, as they have aimbot[[strike:-like]] accuracy, and cannot directly cause friendly fire(being able to literally shoot through others). [[JustifiedTrope It works]], as a half-decent human player is still more efficient overall (due to other factors like bots not being able to use grenades or any particular strategy beyond shooting things), yet a team isn't completely screwed if a player leaves mid-game.˛** Under certain conditions, survivor bots will grab items ''through walls''. Players can't, though in "Death Toll" there is at least one stairway you can revive downed teammates through.˛** Any special infected (other than witches or tanks) can slash you with their claws if you manage to shove them. No "attacking while staggering" animation or anything, blood literally just pulls itself out of your chest.˛** In co-op and other modes where the special infected are AI-controlled, the specials can spawn inside the safe room at the end of the level, leading to [[{{GameOver}} fun times]]. In versus, where the specials are human-controlled, you cannot spawn in the ending safe room, but you ''can'' spawn outside of the safe room and go inside, if the door is open. Playing as a Boomer or a Spitter, you can buy the rest of your teammates time to respawn and make one last attempt at the Survivors.˛* CreepyCemetery: The cemetery leading up to the busted-up church at the end of the third level on Death Toll.˛* CriticalExistenceFailure:˛** Averted with the survivors. When seriously injured, you run slower and jump lower. After taking pain pills, or having just been revived by a teammate, your health is constantly dropping, and at 1 [=HP=] you slow to a crawl. If your health gets taken all the way out and you're not on your "last down", you drop to the ground, only able to use pistols, and slowly bleed out until you die or are revived by an ally.˛** Justified by the Infected, who obviously no longer have a self-preservation instinct and are extremely aggressive, causing them to come at you with all they've got no matter what happens to them, until one of you is dead.˛* DamageSpongeBoss: They're called Tanks for a reason. Four Survivors starting a level have a group total of 400 HP. On Normal difficulty, the Tank has ''4,000''.˛* DeathIsASlapOnTheWrist: Dying does not mean you are forever gone from the game. You will just respawn in a closet or come back in the next map. Versus mode prevents you from coming back until the next map and dying during a finale on any mode gets you KilledOffForReal.˛* DeathIsCheap: You can be rescued from a closet in campaign mode or just simply respawn in the saferoom in the next chapter.˛* DeathOrGloryAttack: [=Cr0wning=] the Witch, which generally consists of going up to the Witch and [[NoRangeLikePointBlankRange shooting her at point-blank range with a shotgun]]. Succeed, and it's a OneHitKill, removing a major threat from your path; fail, and you've put yourself [[InstantDeathRadius at point-blank range of a pissed-off Witch]].˛* DifficultySpike: The jump from Advanced difficulty to Expert is huge. On Advanced, a common infected will deal 5 points of damage if they hit you in the front whereas they do 2 damage on Normal and 1 on Easy. On Expert, [[OhCrap common infected can cause 20 points of damage in the front]]. Hunters can slice you for up to ''40 points of damage'', dealing the most damage out of all of the infected on Expert except for the Tank, who can instantly bring you to incapacitation in a single strike. Not to mention that Witches, which previously incapacitated you in one hit as well, now just [[OneHitKill flat out kill you]].˛** ''The Sacrifice'' was a huge bump up from all the other campaigns, mostly due to its finale. Unlike the other finales, the hordes AND the Tanks ''attack at the same time''. And there are ''three'' sets rather than two now. And one achievement involves '''setting off all three at once'''. And then just when you think you've made your escape, [[spoiler:the lift engines stall and you have to [[TitleDrop sacrifice]] a survivor to go re-activate the lift. '''''With 3 more tanks and another horde all gunning for him.''''']]˛* EquipmentUpgrade: The pistol, which everyone starts with, can be "upgraded" to GunsAkimbo by picking up a second one.˛* EveryoneChasingYou: The horde.˛* ExplodingBarrels: Gas cans, propane tanks, oxygen tanks, and actual barrels in ''the Sacrifice'' campaign.˛* FallingIntoTheCockpit: Versus mode, infected team. While a player can run through the campaign mode to build up their survivor skills before going in, infected players have to learn it all on the fly for their randomly assigned characters.˛* FetchQuest: Going through waves of infected for some gas.˛* FriendlyFireProof: ˛** Downplayed with the survivors on the easier difficulties. They ''can'' get shot, how ever it barely hurts them. You can fire a sub-machine gun at them and still have to reload a few times before they're incapacitated. ˛** Played straight as an AntiFrustrationFeature when a survivor has been grabbed by a special infected, meaning that the zombies can't use you as a human shield.˛** In Versus Mode, the special infected can hurt each other, and can instantly kill the common infected. The Tank can do enough damage to kill even the special infected in one hit, so his habit of accidentally killing teammates can be quite frustrating.˛** Very much averted on [[HarderThanHard Expert]] mode, where one shotgun blast can [[OneHitKill down a survivor in one hit]], and the other weapons aren't much safer to be around. The [[StuffBlowingUp grenade launcher]], in particular, can cause an instant [[TotalPartyKill team wipe]] in the hands of an inexperienced player or {{Griefer}}.˛* GameLobby: The game has lobbies players can set up. While the Quick Match option lets players join in at any game, lobbies give people more controlled settings such as what campaign to play in, difficulty, and server type. However, despite the game's popularity, most people will leave a lobby if they see only one or two people inside, because only the lobby leader can start the game and if they are away from the keyboard, it can't start. A patch in the sequel allows people to vote to get the game going right away if the leader is not starting. Despite the patch, many people still prefer the Quick Match option for its lack of waiting.˛* GangUpOnTheHuman: When playing solo, the special infected seem to favor targeting you over the other survivors.˛* GenreSavvy: Zoey spent her time in college watching zombie horror movies, so she knew how to survive.˛** Ironically, ties into Zoey's background: [[spoiler:she watched zombie movies with her dad a lot. When he was bit, he had her kill him, as per zombie movie tropes. Turns out... he was immune.]]˛** Zigzagged with the military in the Comic. The guards outside Louis and Francis do not fall for Francis' attempt at making them come to the cell and get overpowered. They ''do'' however make the mistake of thinking one man with a gun is capable of controlling [[ActionGirl Zoey]] and [[BadassGrandpa Bill]].˛* TheGuardsMustBeCrazy: Averted:˛-->'''Guard''': You're trying to get me angry so we'll come in there, and you can over power us and escape, aren't you?\˛'''Francis''': What? ''No.'' Okay, fine, ''yes''.˛* GoombaStomp: Jumping on a common infected's head is instantly fatal. Doesn't apply to special infected.˛** Physically being on top of a zombie counts as a stomp, thus an instant kill, which leads to a hilarious moment where you can literally walk over a zombie lying on the ground and kill it from just stepping on it.˛** If you're on a raised position and zombies are climbing up to you, you can drop down and string two or three Goomba Stomps in a row.˛** Standing on top of a ladder which zombies are trying to get up will cause them to get stuck at the top. Jumping will then instantly kill all of them.˛* GravityBarrier: keeps you away from a zombie breeding ground and to keep you moving along to your safe house.˛* {{Griefer}}: Per {{GIFT}}, you're guaranteed to come across them in public matches.˛** Playing as the infected is basically griefing the survivors ''[[RuleOfFun as the goal of the game.]]'' The griefers are getting their kicks from the game itself most of the time!˛* GuideDangIt: Medkits restore 80% of the damage you've taken--if you're at 90 HitPoints it will give you 8, and if you're at 1 it will give you 80. As such, there are times when using them is seriously inefficient. The place this is spelled out in the game is nowhere.˛* HarderThanHard: Expert mode is ExactlyWhatItSaysOnTheTin. Only experts can expect to survive.˛* HandsFreeHandlamp: Zig-zagged. The guns have flashlights attached to them, but that doesn't stop you from still having a light, perfectly centered on the screen at that, when wielding non-gun items like medkits and grenades.˛* HellIsThatNoise: Every single type of Infected has their own distinct sound/musical cues to warn you of their arrival, including a few who will switch from low growls to all-out screams or roars as soon as it has one of the Survivors in its line of sight.˛* HesJustHiding: Literally. Whenever one of the guys die, they're found later trapped in locked closets (or respawn in the next saferoom). It was meant to reflect how survivors get rescued in zombie films. [[invoked]]˛** Averted in the final chapter of each campaign after the rescue vehicle has been summoned. Dying means you get KilledOffForReal.˛* HitAndRunTactics: This is usually the best way to deal with the Tank, by [[KillItWithFire setting it on fire with a molotov]] and/or pumping it full of lead while evading it. Just make sure that you're healthy enough that you can run fast, and that there's room to run.˛* HitboxDissonance: Hitboxes for hunters move in front of them when they pounce, which makes them extraordinarily difficult to knock out of the air with even the slightest bit of lag.˛* HoldTheLine: Occurs in all crescendos and finales(except a couple in the Parish) as well as survival mode.˛* HyperAwareness: Meta example. The best ''players'' exhibit this, being aware of all the directions from which infected could attack and keeping their eyes (and ears) open for incoming specials. Players that turn on subtitles can get alerts for specials before they actually see or hear them. In comparison, the AI bots (as mentioned above) are LazyBackup with a horrific case of SelectiveObliviousness.˛* InterfaceScrew: Your vision becomes [[DeliberatelyMonochrome monochrome]] with red outlines for items if you're incapped twice without using a medkit.˛** Getting hit with Boomer bile turns your screen green and blurry. Not a good thing when that same bile acts as zombie bait.˛* InvisibleWall: Only the Infected in Versus mode will run into them, and if you get close enough they stop being invisible... instead they become labeled "wrong way!"˛* ItCanThink: The Director is actually a rather well working AI system. Depending on the difficulty, it will decide when to place more zombies to hinder your efforts. On Expert difficulty, it just wants you dead and doesn't pull any punches.˛* KaizoTrap: The end of "The Church" in ''Death Toll.'' However, this is rarely ever a problem since [[SequenceBreaking you can fire before the infected can hope to attack.]]˛** Contrary to extraordinarily persistent rumors, it is not possible for Church Guy to become a Tank or Witch. [[ As demonstrated and explained in this video.]]˛*** It is, however, ''entirely'' possible for a Tank or Witch to spawn in the safe room on ''any'' map. This is disastrous with AI Survivors, as being near a safe room triggers a behavior override that has them hustle into the safe room door. [[TooDumbToLive They have no problem at all with bumping into the Witch in the process.]]˛* KillerGameMaster: The AI director. Particularly on Expert mode, when he stops even ''pretending'' he doesn't hate your guts.˛* LimitedLoadout: You can carry one primary weapon from a selection of five, either a single or [[GunsAkimbo pair of duel]] handgun(s) with unlimited ammo, one thrown explosive (either a pipe bomb or a Molotov,) one bottle of pills, and one medkit at a time. ˛* LuckBasedMission: Depending on where enemies spawn and what types they are, along with what items you find, you can either have a smooth sailing game or a nightmare of just trying to survive.˛* MetronomicManMashing: The Tank does this to some zombies in the intro movie.˛* MusclesAreMeaningless: The Witch is a small girl with relatively thin limbs (apart from the vicious claws)... limbs with which she can knock you down/kill you outright faster than any other Infected. Including the muscle-mountain Tank. [[JustifiedTrope Justified]], at least in part, by those claws and perhaps by what could be argued as an overactive metabolism - she's clawed most of her own clothes off, can't stand the light of day, and is drawn to the smell of sugar. The Tank's bulk is more weight that his muscles have to overcome (though you don't want to get in the way of his fist once it's moving, and even less in the path of a car he's just flung at you - that can incap the ''entire team'' in one swipe), whereas the Witch's constant supercharge and lack of excess weight means she can swing those claws with deceptive range and ''vicious'' speed.˛* MyRulesAreNotYourRules: AI-controlled Survivors occasionally get stuck in the environment, so they simply ''teleport'' to the nearest survivors position. AI-controlled infected can spawn anywhere, melee while stumbling, climb things player-controlled infected cannot, and AI-controlled hunters even have a lunge move players cannot perform.˛* NeverSplitTheParty: The game is '''built''' on this trope. Get separated or lose track of your teammates and YouAreAlreadyDead.˛** Occasionally averted in Expert and Versus matches when one survivor staying in the safe room with the door closed can be the difference between success or failure.˛** There are also a few jarring situations in which you have passed a PointOfNoReturn and ''cannot'' go back and help your teammates. This just reinforces the original lesson, since you are forced to soldier on short-handed.˛* {{Nerf}}: The shove motion has been nerfed in a patch with the addition of fatigue: do it too many times and there starts being a delay before you can do it again. This punishes the fact that you can get completely surrounded and need to shove your way out. ˛** The reason for the nerf was that Players used to pick a corner or doorway, have a couple teammates in front who would spam the shove, and two behind them that would open fire. If a Smoker tried to pull a Survivor out of the formation, the Survivor would be quickly shoved, keeping them from getting too far. A Hunter would have no way of attacking without quickly getting shoved and shot. A Boomer would have the best chance of causing some damage, but if the Survivors picked the right spot, the Boomer wouldn't be able to get close. This type of tactic motivated Valve to both nerf the shove and create Special Infected that would break up highly coordinated Survivors in the sequel, namely, the Spitter and the Charger. ˛* NietzscheWannabe: A lot of the graffiti is this. It gets [[DeadpanSnarker shot down]] by both the cast and other graffiti.˛* NoFEMAResponse: [[NoCelebritiesWereHarmed CEDA]] tries to respond to the "Green Flu", but gets overwhelmed. Inevitably, every time the Survivors try to get to a CEDA evacuation point, it'll be destroyed with nothing but corpses to show for it, and they'll end up having to escape another way.˛* NothingIsScarier: Hearing a sobbing Witch, knowing she's close and you have to be careful, or you'll startle her. She'll screech and try to rip you apart - and sometimes you just don't find her...˛** Forget Witches, sometimes you hear a special infected or its musical cue long before you see it or you know it's around the corner but don't want to be the guinea pig. The worse still, is when the Tank music starts playing but takes its time finding you so players are left frantically trying to spot it whilst trying to stick together or rethink their plans.˛* NoticeThis: Witches inexplicably cast a red light in darker areas where you would otherwise have a hard time noticing them.˛* PressXToDie: The developers left in a suicide command for players who had gotten themselves stuck. The problem was, when players were Boomers, that command caused them to explode instantly, preventing the Survivors from stun-locking them with the melee shove. This was quickly patched out.˛** You can intentionally trip car alarms to call a swarm of Infected upon yourself.˛** It is still possible to trigger suicide as an Infected. However, now this is only possible if the Survivors are really, really far away. It's mainly done so you can catch up.˛* PrettyLittleHeadshots: Headshots on witches remain effective but lack the gruesome aftermath, even if you OneHitKill her with a shotgun. Same goes for every Special Infected, and Commons if you're using the pistols or the Uzi.˛* ProceduralGeneration: The Director determines on the fly spawns for zombies and items, as well as changing the [[VariableMix changing the music to fit the situation and mood]].˛* RegeneratingHealth: Inverted. Pills and getting picked up from incapacitation add a temporary buffer of XX health to your HP (differs from action to action), which disappears as time goes on.˛* RespawningEnemies: You can surely expect to see all infected more than once.˛* ScriptedEvent: Generally subverted, but there are a few played straight such as an airliner crash.˛* SelfImposedChallenge: Several have achievements for them. No examples, please.˛* SequelDifficultySpike: ''The Sacrifice'' is '''much''' harder than other campaigns in spite of being shorter.˛* SocializationBonus: The AI bots don't have the necessary perception to leave a partner untreated when temporary health is a better option, they can't use any kind of grenades, and they frequently interrupt your shooting by giving you pills or adrenaline at the most inopportune times, and in [[VideoGame/Left4Dead2 the second game]], they don't collect special ammo or use melee weapons either. They aren't ''completely'' [[ArtificialStupidity incompetent]], being able to shoot very accurately and very rarely getting lost, but they're vastly inferior even to somewhat inexperienced human players. Some [[GameMod custom maps]] aren't even designed to be bot friendly, meaning you ''need'' to have a friend or two to have a shot at completing them.˛* SoundCodedForYourConvenience: Major gameplay-changing events(horde attacks and tanks or witches being startled) change the music. Special infected spawning are accompanied by their unique theme (except in Versus) and their vocalizations give them away.˛* SpeedRun: How some players play Versus mode as survivors. Whether this is good or bad obviously depends on opinions and situations.˛* StandardFPSGuns: [[BottomlessMagazines Pistols]], shotguns, assault rifles, mounted machine guns, sniper rifles, and some improvised "grenades."˛* TakeUpMySword: If a survivor dies, another can take their weapons and items.˛* ThingsThatGoBumpInTheNight: The Special Infected warning sounds.˛* TotalPartyKill: ˛** Tanks can cause this singlehandedly, especially if the Survivors are clumped together and he swats a car at them. Also can happen when a good ambush is pulled off in Versus.˛** Averted with the Witch, who is programmed specifically to only be aggressive towards one Survivor. She was originally intended to be a threat to all survivors, running after every one of them and incapping all, but the developers figured out she was too hard to deal with like this. Not that things don't go off the rails every now and then...˛* VideoGameCaringPotential: Given that you're trying to survive as a team in a zombie apocalypse, you can either always have your team's back, even making sacrifices to save all of their lives...˛* VideoGameCrueltyPotential: ...or you can completely ditch them and leave them at the mercy of all the ruthless zombies, taking all the weapons and health for yourself.˛* VideoGameCrueltyPunishment: Of course, the Director gets pissed at uncooperative play, so he'll often spawn less items and more zombies to target the cruelty-inflicting players.˛* VideogameSetpiece: Most prominently in the last stage of Dead Air, when the survivors leave the saferoom to see a plane on approach go out of control, impact the ground, and slide in on fire before ''exploding''.˛* ViolationOfCommonSense: Downing a whole pack of pain pills at once would be fatal in real life, but somehow is a good idea if you're low on health.˛** In the zombie apocalypse, you don't need to remove the cap to swallow a ''whole bottle'' of pills.˛** First-aid kits, which visibly just have bandages in them. Got shot? Use bandages. Got torn apart by zombies? Use bandages. Fell off a building? Use bandages. Got hit by ''a car'' sent flying at you by a Tank? Use bandages. Infections, blood loss, rest, fractures? Just slap some bandages on and you're good as new!˛** If you get mobbed by common infected, setting yourself on fire with molotovs or blowing yourself up with a grenade launcher will usually clear your space a lot faster than to keep shoving them away or trying to hack at them all with melee weapons. You'll suffer self inflicted friendly fire damage, but that will be small compared to trying to clear out zombies invading your space without said methods.˛** There are some cases where team killing is actually justified. If someone is about to die and there's nothing to heal with, players will usually kill the wounded survivor and then let them respawn in a closet or revive them with a defibrillator: both methods bring the Survivor back with 50 points of health. If no one speaks of this and do the deed, they could be mistaken for a {{Griefer}}.˛* WeCannotGoOnWithoutYou: If there are any bots on the team, you'll have to start the level over again if all the human players are dead, regardless of if there is a bot player alive. It becomes mind-boggling when playing against a team of bot Survivors in versus mode and they are capable of moving through the level on their own without the guidance of a human player.˛** It gets even better when you jump off the roof of No Mercy before starting the finale with only bot allies. Game over starts playing, bots start the finale, you respawn in the closet due to finale starting, bots free you, then the game restarts the chapter anyway.˛* WhatTheHellPlayer: Shoot one of your fellow survivors, and they'll call you out for it with scripted response.˛* YouHaveOutlivedYourUsefulness: Special Infected which are stuck or otherwise unable to catch up to the Survivors will occasionally be killed off by the Director, with the death noise often being faintly audible to human players, particularly in the case of Boomers and Smokers.˛** Tanks will fall victim to this unless they can attack the players within a given amount of time. It's rare but it does happen occasionally. ˛** Infected players can manually trigger this when they are at a certain distance behind the survivors, allowing them to skip the respawn time that would happen if they jumped off a cliff instead.˛* YourHeadAsplode: Shots to the head of regular zombies with more powerful weapons leave only their neck and a PinkMist.˛* YourPrincessIsInAnotherCastle: During the finale to ''The Sacrifice'', it seems the survivors are about to escape to the keys, when the generator cuts out and needs to be restarted. Someone has to get down to the generator and start it back up...[[HeroicSacrifice and it's gonna be a one-way trip for them.]]˛* YouALLLookFamiliar: The basic infected actually have [[OnlySixFaces a small number of basic models]] but are made to look different with various filters, like clothing and blood spatter. The Unique infected all look exactly the same since they wear uniforms, aside from the CEDA zombies with different colored suits.˛* ZergRush: The AI director will send these at you when a boomer vomits on you, in pre-programmed Crescendo Events where you're forced to make a ton of noise to continue moving, or if you accidentally set off a car alarm, [[WebAnimation/ZeroPunctuation or whenever he's bored, which is]] ''[[WebAnimation/ZeroPunctuation all the time]]''. The normal infected also like to rush pipe bombs because of the smoke detector alarms rigged to them.˛[[/folder]]˛˛[[folder:Weapons Tropes]]˛* AKA47: Done subtly: although most of the guns are not named, zooming in on the gun models reveal they are made by fictional companies (example, the pistols in this game are made by "Finleyville Armory").˛* AwesomeButImpractical: The minigun, which can shred oncoming hordes like no other, is never positioned so it can effectively cover more than two of the generally five or so directions that zombies can come from.˛* BottomlessMagazines: Pistols have infinite ammunition. This is for gameplay reasons; they don't do as much damage as regular guns, and they're the only weapons you can use while incapacitated. The creators also didn't want to ever leave you TOTALLY defenseless if you run out of ammo, either.˛* CigarFuseLighting: Bill can be seen doing this with a molotov cocktail in the trailer for "The Sacrifice".˛* GatlingGood: You get the odd mounted minigun here and there. It's set up so that the gunner will have to be covered by the other Survivors, though.˛* GunsAkimbo: All characters can find and dual wield a second pistol for extra ammunition in the magazines.˛* IncrediblyObviousBomb: The pipe bomb is one, [[JustifiedTrope but with good reason]] - its red light and high-pitched beeping [[SchmuckBait make the standard infected flock to it]], making it less a question of where to throw them and more a question of ''when''.˛* KillItWithFire: Molotov cocktails and gas cans. Very effective against all kinds of Infected; Common Infected die instantly when set on fire, while Special Infected - including Tanks and Witches - will eventually burn to death. Note, however, that being on fire doesn't stop Specials from attacking, and the Hunter [[InfernalRetaliation will in fact deal more damage while on fire]].˛* MolotovCocktail: Lovely, lovely, molotov cocktails...˛* OneBulletClips: Applies to every weapon. Around release, however, there was a common misconception that this was averted by mag-fed weapons (read: everything but the shotguns) losing any ammo left in the current magazine when they were reloaded.[[note]]The gist of it is that, when you begin reloading a magazine-fed weapon, the ammo count in that mag is immediately dropped to zero, so then once a player starts reloading they ''have'' to take the time to let the animation play out before they can start shooting again. What players initially failed to notice is that the remaining ammo was re-added to their reserves.[[/note]]˛* PinkMist: Pipe bombs produce this effect in the original game, rather than gibs. This was due to the performance issues of having 20 or so commons turn to gibs at once. In the sequel, pipe bombs now turn infected into gibs.˛* RangedEmergencyWeapon: Pistols.˛* ShortRangeShotgun: Averted. The shotguns are a viable weapon choice, even in open areas.˛* SticksToTheBack: Every primary weapon, melee weapon and medkit slot item, but not pistols (they get holsters), pill slot items, and grenades. If you examine the models in the sequel, some characters have a small rope belt that the smaller items are attached to.˛[[/folder]]˛----˛--> ''The survivors have escaped!''˛--> ''53,595 [[TVTropesWillRuinYourLife lives were ruined]] in the making of this page.''


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