''Thief'' is a three-game series of first-person [[StealthBasedGame sneak-em-ups]] starring an [[AntiHero anti-hero]] named [[DeadpanSnarker Garrett]] as he goes about [[PhantomThief stealing stuff]] in an unnamed fantasy/{{steampunk}} city. Each game consists of a series of missions that begin with little or no connection to each other but eventually become part of an over-arching plot-line concerning Garrett saving the world from a great evil.

The series is especially notable for the relatively free exploration allowed within the boundaries of each scenario and the many ways the player can approach the given objectives. {{Self Imposed Challenge}}s, such as [[SpeedRun completing objectives in as short time as possible]] or [[StealthRun completely avoiding detection]], are popular among the more devoted fans. The games are loved for the convincing and engrossing atmosphere they create by taking usually Victorian SteamPunk and giving it a dash of medieval flavour, making for a truly unique and interesting setting. The ''Thief'' series has a strong following and many elaborate fan-made scenarios have been created, some even surpassing the quality of the original ones.

''Eidos Montréal [[http://www.psu.com/Thief-4-officially-confirmed,-platforms-TBA-News--a007164-p0.php confirmed in May the development]] of [[strike:Thief 4]] [[Letters2Numbers [=THI4F=]]], the next installment in the massively popular stealth action series.''
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!!These games provide examples of:
* AbandonedHospital: [[spoiler:The ''{{Thief}}: Deadly Shadows'' level "The Cradle".]]
* AbsurdlySpaciousSewer: the Downwind Thieves' Guild is headquartered in the sewers beneath the casino under the Overlord's Fancy.
* AdvancingWallOfDoom: A Keeper outpost in the first game has one as a booby trap.
* AdventurerArchaeologist: The elder civilizations aren't going to need those shiny things anymore, are they?
* AllInARow: A few groups of police and guards act this way in the second game, e.g. Cavador's bodyguards follow Cavador.
* AllMythsAreTrue: Well, the ones that the Keepers have on record, anyway.
** Those aren't myths, those are prophecies.
* AlternativeCharacterInterpretation : Does Garrett keep helping others and saving the world because he's a KnightInSourArmour, or is he just a pragmatic egoist?
* AncientTomb: "Down in the Bonehoard" and "The Lost City".
* AntiHero: Garrett claims to be simply looking out for himself, but it is always up to him to save the day. Granted, revenge also has something to do with it.
* {{Atlantis}}: Two visits to a long-lost underground city that used to be inhabited by {{Precursors}}.
* ArtifactOfDoom: [[spoiler:The Eye.]]
* ArtificialBrilliance : The series is well known and highly respected for the impressive AI of it's [[{{NPC}} NPCs]].
* AwesomeYetPractical : Sneaking past various threats undected and non-lethally dispatching enemies with a single blow to the head from your trusty blackjack.
* BackStab. Mooks tend to react negatively to corpses they find, though. It should be pointed out that this game series does not encourage backstabbing, sometimes to the point of initiating a NonstandardGameOver for killing of any kind, unlike pretty much any other StealthBasedGame. ''Usually'' that's only if you're playing on the highest difficulty setting -- although there are some levels where you auto-fail the mission if you're detected even once, or leave behind ''any'' trace of your having been there. And dead bodies count as traces.
* BadassNormal : Garrett
* BadassBookworm / CrouchingScholarHiddenBadass : The Keepers certainly qualify...
* BagOfSpilling: In the first two games, Garrett loses whatever consumable resources he has when finishing a level, and any gold he fails to spend when starting one.
* BeastMan : [[spoiler:Quite literally - the animal-descended fantasy humanoids in the game's universe are referred to as "beastmen". Most of them are in allegiance with the Pagans and often even live amongst them and serve in the Trickster's army.]]
* BedlamHouse: the Shalebridge Cradle.
* {{Bizarrchitecture}}. Constantine's mansion in the first game. Some examples:
** In the ''Gold'' version, the Brobdignag section. (There is a Lilliputian section as well.)
** Large sections of the upper floors are rotated so that, e.g. the ceiling looks like a floor and vice versa, including having upside-down or sideways furniture.
** In the greenhouses, search the ceilings until you find the section that is actually water; you can climb up through it into a tub of water in the room above.
* BittersweetEnding : These seem to be the standard. But then again, Garrett apparently [[{{EarnYourHappyEnding}} earns his happy ending]] at the end of the third installment... [[{{OrIsIt}} sort of]]...
* BookEnds: The beginning of the first game and the end of Deadly Shadows.
* BookcasePassage: Lots of these.
* BondVillainStupidity: In the first game, Garrett is left injured and trapped just before the mission "Escape". The villain in question had reason to leave him alive though, something about his "sacrifice is not yet complete". Also, the villain in question had Garrett tied up, and Garret was rescued from the approach of monsters only by the fortuitous appearance of two Keepers.
* CanisLatinicus : The Hammers have their "ye olde" style of speech, the Pagans talk in a childish pidgin and the Keepers (during the events of the third game) revel in some sort of Faux Latin while reading the ancient scrolls and textbooks from their library.
* TheCaper: Some levels (or groups of levels) are definitely full-fledged capers. Others are simple "pick the lock and loot what you find inside" missions.
* CityOfAdventure : Hoo boy. Lots of interesting and varied areas to visit, including the region surrounding the city. The third game even had a sandbox game feel to it - you could walk around a few select streets in the core quarters of the City, loot various establishments and bypassers, or sell your loot and purchase new equipment in hidden thievery shops.
*CityWithNoName : The aptly named "The City". Possibly justified, since it's maybe the largest and most advanced urban area in the world of the series.
*ClingyMacguffin : [[spoiler:Once again, The Eye (especially after it reappears in the third game). Are you seeing a pattern here ?]]
* CompleteMonster: [[spoiler: The Hag, the BigBad of the third game, and the only major villain without an AlternateCharacterInterpretation that could make her more sympathetic. There's really no way to make a skin-stealing serial killer that kills people for immortality and whose victims included a little girl sympathetic. Before she became a shapeshifting half-human, half-monster, she was an ordinary Keeper acolyte named Gammall, who had an unpleasant propensity for greed. Was a member of a small scientific expedition to find some ancient magical artifacts of great power. Similar to Gollum from LOTR, she couldn't resist the lure of the ancient gems, went mad and killed her colleagues. Centuries past and she kept spying on the Keepers in their very own compound, searching for clues about the few remaining artifacts, that would grant her unspeakable powers and the opportunity to rule all. In the meantime, occasional sightings of her by the townsfolk gave rise to legends, bedtime stories and nursery rhymes about an evil Hag - abducting children on foggy nights and robbing people of their skin.]]
** Don't forget [[spoiler:Father Karras]], the BigBad of the second game. [[spoiler:He abducts homeless people and turns them into mindless automatons as his master plan is to use these automatons to slaughter the entire organic life in the City. It really says a lot about the man when his Mechanist slaves ''thank'' Garret for killing them. At least the Hag wasn't this omnicidal.]]
* CoolButInefficient: The grenade-launching robots seen in the second game can be tricked into destroying themselves by firing their grenades into the wall they are pressed against. Also, they can be disabled by water arrows in the ''open boiler on their back''.
** And this weakness is fully mentioned within the game as a real weakness of current design.
** What's more strange is that those big ugly death machines can be broken easily by StuffBlowingUp (if you have enough), but the annoying "steel cherubs" cannot.
* ConspicuouslySelectivePerception: The entire game mechanic is built around {{NPCs}} failing to notice the player character if he is in shadow, while being extraordinarily sensitive to noises he makes himself and oblivious to noises made by machines set in motion by the protagonist.
** Justified in that the protagonist has quasi-mystical ninja powers. Remember that the intro of the first game has a Keeper walking down the street in broad daylight ''with no one but Garrett noticing he is there''. Apparently part of the Keeper training is the ability to [[JediMindTrick blank other peoples' minds to the awareness that you're there]], but since Garrett never finished his training he can only do it if he's standing motionless in shadow.
*** Garrett is supposed to be significantly ''better'' than the Keepers at stealth, regularly [[StealthHiBye getting the drop on them]], breezing through their secret libraries and easily spotting their supposedly stealthy agents. The first game manual describes his ability to hide in the shadows as 'preternatural'.
* CorridorCubbyholeRun: When faced with corridors in indoor environments, Garrett has to hide from patrolling guards/monsters/zombies/etc. by dodging in and out of rooms, into alcoves, and so on.
* CrapsackWorld : This game series truely defines the term "noir fantasy". Though not everything is as dark and humdrum as it seems at first glance...
* CreepyChild / EmotionlessGirl : Keeper Translator Gamall, a cca 10 year old, from the second and third game. [[spoiler:She gets a pretty shocking {{Reveal}} during the course of the third game.]]
*CrowningMomentofAwesome: For Looking Glass, more like Crowning Level. Just mention the Thief 2 level ''Life of the Party'' to any Thief fan and they'll grin and remember the first time they played that huge, very open ended and incredibly well designed mission that combines burglary via rooftops of noble mansions, banks, a necromancer's spire, and dingy tenements with Garrett's gatecrashing of ''that'' party. [[spoiler: And Karras knew you were coming ALL ALONG!]] Let's not forgot what happens after you read the Karras' New Scripture... arguably the biggest scare of the entire series, though you weren't in any danger!
** Another CMOA would be the way Garrett defeats the BigBad in all three games : He uses nothing more than his expert knowledge of stealth and subterfuge.
* CrystalDragonJesus : The Hammerites are esentially your typical medieval Christian church [[{{Expy}} expys]], but with a few [[{{SubvertedTrope}} interesting and believable twists on their mythology]] : The belief that the Builder (the one god) led humanity out of savagery by the gift of the first hammer, fire and more advanced tools slightly mirrors the ancient Greek myth of Prometheus. It's also the reason why Hammerite rituals and worship are centered around human work, handicrafts and industry... [[{{JustifiedTrope}} and a possible explanation for the whole steampunk feel of the world]].
* {{Cult}}: The Mechanists in the second game. Essentially a much darker and even more self-righteous version of the Hammers (of whom they are an offshoot). Their [[{{AveMachina}} worship of technology]] and the leader figure of the church (Karras) borders the fanatical, and gradually goes off the rails... On the other hand, they seem to be progressive in things like gender equality (owing to their quasi-Protestant nature) and help out the city by giving away new technology.
** Not to mention, you know, the actual Pagans in the game who worship the Trickster.
* DarkIsNotEvil
* {{Deadpan Snarker}}: Garrett, who is known for his cynical, sarcastic view on life among over-serious and righteous people.
* DoubleCaper
* DynamicDifficulty: Higher difficulty levels not only increase the amount of loot that must the gained but also restrict the use of deadly force.
* EasterEgg : [[spoiler:The basketball court hidden in the training level of the first game. This was a common easter egg in games developed by Looking Glass Studios. For instance - it also appeared in SystemShock]].
* ElaborateUndergroundBase: The Markham's Isle complex in "Precious Cargo" (which is also an IslandBase).
* EnemyChatter: Particularly memorable: the [[http://bearpits.ytmnd.com/ bear pits]] conversation in "Lord Bafford's Manor"; and a GenreSavvy guard asking a Mechanist how the cameras know to sound the alarm when they see a thief, but not when they see a guard. (His response? The Mechanists' version of the MST3KMantra, of course.)
* EnemyMine : [[spoiler:Garrett teams up briefly with the Hammerites and Pagans in the first and second game respectively (and has the option to do so in the third game). He does it more out of necessisity than sympathies.]]
* TheEndOfTheWorldAsWeKnowIt: The {{Big Bad}}s of the series love to wipe out civilization. Go figure.
* EyeScream : [[spoiler:In the first game. You'll know it when you see it.]]
* FakeDifficulty: On higher difficulty levels, Garrett arbitrarily decides to limit his kill count, and demands that he finds a specific percentage of all the treasure in any given level. No reason is given for this aside 'that makes it harder'. Some Handwave it away as Garrett being too professional, but that doesn't explain why he's perfectly fine with leaving no survivors on the lower difficulties.
* FakingTheDead : [[spoiler:Garrett does this in the third game in order to escape Shalebridge Cradle.]]
* FantasyGunControl: The world of ''Thief'' has scientific advances such as electricity, steam engines, clockwork robots, surveillance devices and even stun grenades (flashbombs and gas grenades), but there are no gunpowder firearms to be seen (which amusingly contrasts the otherwise accurate Late Medieval-like setting). Even the City Watch and Mechanists are armed with swords, maces, bows, and crossbows at best.
* FilmNoir / CityNoir: And how !
* FirstPersonSmartass: Garrett revels in this trope...
* FishPeople: [[spoiler:The Kurshoks from the third game. Not in allegiance with the Pagans like most of the non-human races...]]
* FiveFingerDiscount: As a [[StreetUrchin child]], Garrett came to the attention of the Keepers when he tried to pickpocket one on the street, and "it's not easy to see a Keeper, especially one who doesn't want to be seen." In the game, there are frequent opportunities to filch bags of gold, keys, potions, and arrows from the unsuspecting, with a "pockets picked" counter on the score page after the mission.
* FridgeLogic: Electricity and electric lighting exist in this world, but homes still use torches and gas lamps, which Garrett can easily douse with water arrows. Perhaps explainable if electricity is expensive, but Garrett robs the houses of the wealthy...
**It seems like the Hammerites and Mechanists are very selective as to who gets what of their mechanical wonders.
***There's an explanation for the Mechanists. [[spoiler:Karras's master plan is to rid the City (if not the world) of all life by using "Servants" that emit a gas that turns living matter into rust. However the reaction can only propagate itself where there is an abundance of living matter. All the trees and plants left are the property of the super wealthy so Karras gifted the Servants to the upper crust of society under the guise of good PR. ]]
* GameMod: Several. Most notable is ''Shadows of the Metal Age'' for ''Thief 2,'' a full-length, fan-made expansion with a new main character, weapons and items, and a story of {{Revenge}} and manipulation.
* GentlemanSnarker : First Keeper Orland and some of the other Keepers to a degree...
* GiantSpider. These appear occasionally in the first game.
** And more rarely and with less variety in the second one.
* GrapplingHookPistol: The (slightly magical) rope arrows in the first and second game are essentially a medieval version of this. They can stick into any wooden or earthy materials and provide new routes to otherwise inaccessible areas. The vine arrows from the second game are a full-blown magic version of the ordinary ones and can also stick into surfaces with metal grating [[spoiler:(Garrett obtains them after teaming up with the Pagans).]]
* [[{{GreenSkinnedSpaceBabe}} GreenSkinnedWoodNymph]]:[[spoiler: Viktoria,]] a Pagan and [[NatureSpirit dryad]]. [[spoiler:But more like InNameOnly, since she's a much more sofisticated and serious character than at first glance. Her role tends to overlap with ActionGirl and FemmeFatale. Had a troubled and uneasy relationship with Garrett (former enemies), but became a DefrostingIceQueen over time. She and Garrett eventually became FireForgedFriends, but it didn't last long, since Viki was KilledOffForReal by her own HeroicSacrifice just before the GrandFinale of the second game. She's also quite a frequent victim of {{Shipping}} or ShipToShipCombat by some of the fans (due to an occassional FriendshipMoment and possible {{UST}} between her and the protagonist).]]
* GreyAndGreyMorality : ''Everyone'' in the setting, including the forever-locked-in-conflict Hammerites and Pagans. Each faction and character have their moments of nobility and humanity, as well as ShootTheDog ones... The only apparent exception to this trope would be the villains [[spoiler: - but then there's the AlternateCharacterInterpretation for each of them.]]
* TheGuardsMustBeCrazy:
--> "''It was probably just the wind...''".
** Also, one thing is to go after Noisemaker; another is to pretend the freaky arrow lying on the floor under a lamp is invisible.
* HeroesPreferSwords: Played straight in the first two games. Averted in ''Deadly Shadows'', however, as there Garrett trades his longsword for a more concealable dagger.
*HighlyVisibleNinja : [[spoiler: The Keeper Assasins from the third game were criticized for their unstealthiness while dealing with other random NPCs. And they're supposed to rival both Garrett and any other normal Keeper in terms of stealth.]]
* TheInfiltration: the Dark Project mission "Undercover"
* IslandBase: The Markham's Isle complex in "Precious Cargo" (which is also an ElaborateUndergroundBase).
* KnightTemplar: The Mechanists in the second game, and the Hammerites in the first to a degree.
** A degree? The Hammerites hit this trope full force. Read some of their scriptures in ''Deadly Shadows'', particularly the one involving a man beheaded because even though they weren't sure he committed a crime, ''they figured he was probably a heretic anyway.''
*** The writing for the Hammerites in the third game is far worse than the (extremely good) writing in the first.
* LostTechnology: The cultivators in the second game.
* LowFantasy
* LightIsNotGood : Of the literal variety - brightly lit spaces and loud floors are Garrett's greatest enemies (as far as thieving goes).
* LimitedSoundEffects : Averted big time. Nearly every type of surface imaginable has an expansive and context-sensitive set of sound effects. Listening to your surroundings is even part of the gameplay (you can guess the distance between you and any NPC and also the direction from which the sound is coming). Thief was probably the first game to use the concept of sound FX being more than just a background decoration to it's full degree.
* {{Magitech}} : Some of the technology in the game's universe seems to be of this variety. Sometimes, it's clearly related to the Lost Technology trope above.
* MeaningfulName: The word "Gamall" is Scandinavian (and Tolkien-talk) for "old".
* MeleeATrois: The climax of the third and final game, ''Thief: Deadly Shadows'', [[spoiler:is a massive melee throughout the city streets between the City Watch, Hammerites, Pagans, and the BigBad's animated statues]]. The more factions that are friendly or at least neutral towards Garrett, the easier it is to make it through alive.
** The first game has the potential for this in any level where multiple types of [[{{AI}} AIs]] are around, e.g. "The Haunted Cathedral", "The Lost City". Zombies will attack anything alive, for example, not just the player; fire elementals will attack at least some types of living [[{{AI}} AIs]]; and so on.
* NiceJobBreakingItHero. Unsealing SealedEvilInACan is bad. Who knew?
* NightmareFuel: Many players found the whispering Haunts from the first game extraordinarily creepy. The mission called "The Cradle" found in the third game is considered to be among the scariest game levels of all time. A detailed writeup can be found [[http://gillen.cream.org/wordpress_html/?page_id=618 here]].
** In the first game, "Return to the Cathedral", and the cutscene after that. Most effective at night and despite the fact that the Hammer Haunts [[spoiler: ''can'' be harmed]].
**The mechanist robots in ''Thief II'' are very intimidating to the inexperienced player. Also, the invincible but harmless Mechanist 'Cherub' that appears ''out of thin air'' and follows you around everywhere in one level making weird noises seriously scared a lot of players who weren't unhinged by the scarier elements of the first game.
*** The mechanist servants, when you realise that [[spoiler: they are free willed humans with their actions controlled by robotic implants. They often have conversations with themselves in which the human bemoans their fate or the robot tells the human off. A specific few are known to utter 'thank you' with their final breath if you kill them.]]
** The Haunts are cute fuzzy bunny rabbits by comparison to the "Puppets" and their environment in the Cradle.
*** The [[http://www.youtube.com/watch?v=tYOeHevFUKI "Give Mr. Garrett his... compensation..." scene]] from the first ''Thief'' is the [[EyeScream scariest]] cutscene of the series. Brrrrrr.
****Arguably HighOctaneNightmareFuel... There are a few more spread throughout the entire trilogy.
* NoArcInArchery : Mostly averted. Nearly all arrows arc. The broadhead, rope, water and moss arrows follow the laws of physics, while the elemental arrows of Air (sleeping gas) and Fire (rocket launcher stand-in) fly straight and fast.
** Of course, elemental air would probably be considered to have its own personal updraft...and hot air rises.
* OmnicidalManiac: [[spoiler:Karras, the BigBad of ''Thief 2: The Metal Age'', was planning to wipe out ''all life on Earth'' in order to create the Builder's perfect, orderly world. In contrast, the BigBad of the first game merely wanted to wipe out human civilization (sparing the forest-dwelling Pagan tribes), while the BigBad of the third game was a serial killer who stole people's life force (and skins) to live forever (the threat being that she was planning to share her knowledge with other Keepers, thus creating more like her).]]
* OrderVersusChaos: The struggle between the orderly Hammerites and chaotic Pagans are a major plot point in all 3 games.
* OrphanageOfFear : Shalebridge Cradle used to be an insane asylum and an orphanage [[spoiler:- but at the same time !!!]]
* OurDragonsAreDifferent : Burricks - wingless reptiles with the size of a pony and the outward appearance of a chuby theropod dinosaur - are apparently the closest thing to a dragon in the Thiefverse. Expectable in such a down-to-earth LowFantasy setting. Burricks aren't actually ferocious (being herbivores), but they can still be dangerous. No, they don't breath fire... Instead, they burp cloud after cloud of some sort of highly concentrated fumes created in their digestive system ! The fumes are not poisonous, but you'll suffocate in them almost immediately. It's implied they have slightly explosive properties - Garrett makes a snappy remark in the second game about ''"infiltrating Sholesgate is like looking down a burrick's throat with a lit match"''. Burricks appear up-close-and-personal in several levels of the first game and in the form of hunting trophies and occasional references in the second and third game.
* PardonMyKlingon / UnusualEuphemism : Taffer, to taff, taffing taff... The most standard curseword in the series' universe. The various guards are it's most prominent users : "Taffin' cripes, I knew I smelt trouble ! Where are you, you taffer ? Aah, you're taffing me... Who's gonna clean up all this taff ?" The word "taffer" seems to be a general term for a criminal, low-life or annoying person. Other cursewords uttered by various characters are fairly standard or slightlty archaic.
* PhantomThief: Garrett, of course. While he steals for a living, he mostly turned to it to get out from under the self-imposed (and self-righteous) restrictions of the nigh-invisible Keepers. Many of his capers are clearly done as ''ars gratia artis'', and one in the first game is explicitly done to show a local crime lord who the ''real'' criminal mastermind is.
** One mission in the first game, likewise -- Garrett thinks that the best revenge against a crimelord's assassination attempt is, instead of killing him, to sneak in and remove every valuable object from said crimelord's house. Granted, you also have the option of doing that ''and'' (depending on difficulty level) killing him.
** Also subverted in that Garrett's single most frequent recurring complaint is 'I have to do this job because the rent is due'.
* PlotCoupons: The first game has Garrett find the four keys to a locked cathedral.
* {{Precursors}}: the, uh, Precursors.
* SealedEvilInACan: [[spoiler:the Eye in the first game]].
* ShoutOut : Quite a couple of easter eggs and well-hidden pop-cultural references.
** Garrett in the first game : "Time to... raid some tombs..." (Eidos published both ''Thief'' and ''TombRaider''.)
* SinisterMinister: [[spoiler:Father Karras - in the last level he even has a FreudianSlip that indicates that he no longer believes in the Builder.]]
* SpiderDrone: The second game has some.
* StalkingMission : Unsurprising in a stealth game like this. They're actually pretty entertaining. [[spoiler:Some examples : The "Assasins" mission in the first game, the "Track the Courier" mission in the second one and (partly) the Forbidden Library of the Keepers in the third one (after Garrett teams up with them once again).]]
* StealthBasedGame: Games in the series are effectively impossible to complete without either stealth or cheating. The main character simply isn't formidable enough to actually fight all the guards one at a time, let alone in groups, and in ''Thief 2'' there was at least one mission where remaining undetected was a required victory condition. Although lone guards are remarkably easy to dispatch if you could get a clear shot at their back while they were unaware of your presence. And even then, some missions stipulate that you cannot disable any guards or civilians.
** It should be noted that circle-strafing and having lots of room to back up can help take out several guards at once. Most die after 2 or 3 overhead swings. The trick is just making sure they don't hit you.
* StealthHiBye : Garrett loves these... He does this to half the people he meets in the third game of the trilogy, including the Big Bad. His mentor manages to pull the same trope over on him once, however, in a hilarious and brilliant inversion.
* StealthPun: In ''Deadly Shadows'', you have to break into a clocktower operated by the Hammerites and sabotage the mechanism, causing the clock to stop. In other words, you have to Stop Hammer Time.
* {{Steampunk}}: Or maybe Steam Gothic. Styles of dress and architecture are mostly late medieval, but there are electric lights on the street, Garrett gains a mechanical eye, and gauges with no discernible purpose are everywhere. In the second game, there are even clockwork surveillance cameras and steam-powered robots. And those... ''servants''.
* StraightArrow : The bow is one of the most useful and important pieces of equipment in the game. It's often more of a tool than a weapon, especially while using the more special, stealth-related [[{{TrickArrow}} trick arrows]]. If a player's good at estimating distance and arrow arcs, he can even achieve a clean OneHitKill by shooting guards in the head or upper part of their body.
* StrangeBedfellows: The second game has Garrett team up with the survivors of the group he defeated in the first.
** Late in the first game, he teams up with the Hammerites against a common enemy, an 'eye for an eye', if you will. Fittingly enough, the level in which the event takes place is called Strange Bedfellows.
** In ''Deadly Shadows'', Garrett can team-up with these groups despite his history in targeting both their groups and [[spoiler: killing the high shaman guy for the pagans when he was attempting summon their god into being]]. Hell, it happens right after he's robbed both of them of some pretty valuable loot...
* StupidityIsTheOnlyOption: The entire plot of the first game is driven by this. What ''idiot'' would possibly think that unsealing the ancient Hammerite Cathedral and freeing the Eye from its confinement would be a good idea, after the Eye ''talks to him in his head'' and visibly manifests its obvious evil on several occasions? For that matter, what idiot would think that Constantine had any intention of actually paying him that ridiculously oversized a fee for delivering the Eye, when he could simply mug Garrett and take it from him? Garrett didn't even get half the money up front. Apparently his streetwise instincts and common sense ''completely'' evaporate if you wave a bag of gold under his nose... which is in character for Garrett, at least.
** It should be mentioned that it was supposed to be a really big pile of gold. And Garrett didn't make that mistake twice.
** All things said, it's also worth mentioning that the only reason Garrett made such a rash choice was because Constantine had earned his trust by hiring him to steal his own sword in a 'test' to see if Garrett was as capable as reputed. Common sense dictates that if Constantine wanted Garrett dead, he would have killed him then and there. Pity common sense has its flaws too.
** It should also be pointed out that the mission called 'The Sword' (the one just before you are hired to steal the Eye) has Garrett finding (if you play it on the highest difficulty) evidence that Constantine is both capable ''and willing'' to pay those who do jobs for him, even obscure, out of the way people. Garrett didn't have any reason not to believe he would receive his ... [[FalseReassurance compensation]].
** Garrett should still have stopped to think that if Constantine set up the entire 'Sword' mission as a test, then anything he found lying around during the course of that mission can potentially be disinformation. But more importantly, Garrett continued with his quests to undo the bindings around the Cathedral so he could steal the Eye even ''after'' he found out what extreme lengths the Keepers historically went to to set up those bindings. Bear in mind that Garrett ''knows'' that the Keepers won't openly interfere in anything less important than an impending apocalypse, and in the case of the Eye the Keepers of the past went well beyond 'interfering' to 'the single largest concerted effort Garrett's ever even heard of them attempting'. And yet it never even occurs to Garrett to go ask the Keepers "So, exactly what ''is'' the deal with you and sealing up the Eye, anyway?"
* SuperDrowningSkills: In the first two games Garrett can swim, but in the third one he drowns instantly upon contact with water.
* TalkingToHimself: You'd never know it from just playing, but Garrett and Karras are voiced by the same guy. This happens a lot for many other characters, too.
** [[http://www.youtube.com/watch?v=wn3mg3lYx1o Here's a vid that demostrates it quite hilariously.]]
* TapOnTheHead: With a blackjack.
* ThankTheMaker : The Mechanist robots ''reeeally love this trope'' : "Praise Karras.", "All should fear the word of Karras, the word of Karras...", etc. Needless to say, it can get annoying... A full list of the phrases can be seen [[http://thief.wikia.com/wiki/T2_Sound_Folder:_Robots here]]. This trope is [[{{PlayingWithATrope}} slightly played with]] though - [[{{TalkingToHimself}} every robot uses a voice track recorded by Karras himself !]]
* TheAlcoholic : A [[{{ComplainingAboutComplaining}} grumpy]], [[{{TooDumbToLive}} naive]] and [[{{PluckyComicRelief}} overall hilarious]] guard [[{{FanNickname}} nicknamed]] Benny (a.k.a. "Dumb guard") in practically ''all'' his incarnations. [[{{CrowningMomentOfFunny}} Played for laughs.]]
* TheObiWan / CoolOldGuy : Artemus[[spoiler:, the Keeper Elder who brought Garrett into the order and served the role of his teacher and father-like figure. Apparently the only Keeper who can still top Garrett in stealth. Overlaps a little with Mr.Exposition in nearly every cutscene or location he appears in.]]
* TheWatcher : [[spoiler:The entire faction of the Keepers is this trope incarnate. But even though they try their best, they're not always as neutral as they would wish to be...]]
* ThievesGuild: Garrett's not interested in sharing his profits. The local guild bosses are less than pleased. The one baron who tries to give him trouble? You get to rob him dry.
* ThoseTwoBadGuys: See VitriolicBestBuds below. There are two guards who change employer very often, and for some reason anyone who hires them soon gets a visit from Garrett. And they ''still'' haven't learned not to talk loudly about where the keys are hidden and the secret doors are...
* TrickArrow: Gas arrows, moss arrows, distraction arrows and the ever-popular water arrows...
* UndergroundLevel: The Dark Project: "Escape from Cragscleft Prison", "Down in the Bonehoard", "Thieves' Guild", "The Lost City", part of "Song of the Caverns", "Strange Bedfellows", "The Maw of Chaos". The Metal Age: part of "Trail of Blood", part of "Precious Cargo", "Kidnap". Deadly Shadows: part of "Into the Pagan Sanctuary", "The Sunken Citadel".
* UnnecessarilyLargeInterior: The Halls of Echoing Repose, from the first game's "Down in the Bonehoard", as well as the Brobdignagian area in Constantine's Mansion in the ''Gold'' version.
* UselessUsefulStealth : Nicely averted (unsurprisingly, since proper stealth is the meat and potatoes of the whole series). Sure, you can still cut or blast your way through most enemies if needed, but it's not as fun... And also not as effective against larger groups of adversaries...
* VitriolicBestBuds : [[{{TheFool}} "Dumb Guard"]] (a.k.a. Benny) and [[{{SmartGuy}} "Smart Guard"]] (a.k.a. Nick or Jored). [[{{OddCouple}} As different as night and day]], but [[{{BuddyCopShow}} good pals]] and [[{{TheyFightCrime}} co-workers]]. A lot of their conversations turn into pure CrowningMomentOfFunny.
* WhatMeasureIsANonHuman: On Expert difficulty, killing human civilians and guards is an automatic mission failure. This doesn't apply to animals, monsters, machines, undead or humanoid beasts. One exception is the Servants, [[spoiler: who are people who've been kidnapped, killed and turned into cyborgs/living weapons]]. Killing them on Expert difficulty also grants you a mission failure. A notable exception occurs in the [[spoiler:last mission of ''The Metal Age'']].
* WeakButSkilled: Garrett, despite being far from a physical powerhouse, is able to regularly outwit and outmanuever burly guards and superhuman monsters through a combination of smarts and stealth.
* VideogameCaringPotential: Adorable drunk guards and any other innocents you can't being yourself to kill. And for some, in the first game, burricks.
* YeOldeButcheredeEnglishe: The Hammerites speak like this to a hilarious degree.
* YouNoTakeCandle: Pagans, on the other hand, have a very unique tribal-ish dialect to their speech, using "bes" for "is" and other "to be" permutations and frequently attaching -sy to the end of words.

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