[[quoteright:252:[[Franchise/MassEffect http://static.tvtropes.org/pmwiki/pub/images/rsz_1geth_9543_8962.jpg]]]]
[[caption-width-right:252:It doesn't need depth perception to destroy you.]]

->'''Shepard''': The geth are perfect ambushers. They don't move, they don't sleep, they don't even breathe.\\
'''Ashley''': Sir, they have flashlight heads!
-->-- ''VideoGame/MassEffect1''

It seems that if you want to give a ({{Killer|Robot}}) {{Robot}}, {{Cyborg}}, or HumongousMecha a really sinister look, you have to build it with just one eye.

Similar to the UncannyValley, by deliberately giving androids a characteristic that is not human, you're making the audience realize how creepily ''in''-human they actually are. For more standard robots or HumongousMecha, a single eye denotes a sinister asymmetry not found anywhere in nature (except the flounder). It doesn't help these eyes are lidless and usually [[GlowingMechanicalEyes glow]] a [[RedEyesTakeWarning relentless red]], creating the illusion of a singular and evil focus.
Can easily be justified (though rarely is) by the mention of a rangefinder of some kind, removing the need for stereoscopic optics.

Almost always a type of GlowingMechanicalEyes. Contrast FacelessEye. Frequently prone to EyeLightsOut. For the organic version, see {{Cyclops}}.


[[folder:Anime & Manga]]
* The MS-06 Zaku II isn't the only example from ''Franchise/{{Gundam}}'', simply the best known. Pretty much all the antagonistic factions in Universal Century and Cosmic Era use monoeyes (normally in the colour of red) for all their mobile suits; Zeon, the [[Anime/MobileSuitZetaGundam Titans]], [[Anime/MobileSuitGundamZZ Axis Zeon]], [[Anime/MobileSuitGundamCharsCounterattack Neo Zeon]], and [[Anime/MobileSuitGundamSEED ZAFT]] all use monoeyes almost exclusively.
** And the only reason [[Anime/MobileSuitGundamWing OZ]]'s mobile suits don't count is that ''their'' eye sensor is so large, it takes up nearly the entire "face", and makes them TheBlank.
*** The Maganac Corps' mobile suits also feature a monoeye camera.
** Even the non-SuperPrototype Federation suits from the UC Gundam series, specifically the GM and its derivatives also feature monoeye cameras. They're just less obvious since they don't glow and are hidden behind a visor. This is most clearly shown in the [=OVA=]s such as ''[[Anime/MobileSuitGundam0080WarInThePocket War in the Pocket]]'', ''[[Anime/MobileSuitGundam0083StardustMemory Stardust Memory]]'' and ''[[Anime/MobileSuitGundamUnicorn Unicorn]]''.
*** The late UC era works, from ''Anime/MobileSuitGundamF91'' onwards have most antagonist factions forgoing the monoeye design, partly as though to say "[[BlatantLies we're not like Zeon]]."
** While the Space Revolutionary Army of ''[[Anime/AfterWarGundamX Gundam X]]'' have the traditional mono-eyes, early United Nation Earth mobile suits have the more unusual triple-eyes.
** In ''[[Anime/MobileSuitGundam00 Gundam 00]]'' the old-school Tierens have the monoeye, the Flags and Enacts (and their predecessors) have one visible eye (if you look closely) above the reflective mask (with a scar like marking down the left side that lights up, for dramatic effect) that covers most of the robots face, and the alien-like GN-X series have four eyes.
** Don't forget the [[Anime/MobileFighterGGundam Death Army.]]
*** And Neo Japan's Busshi.
** ''[[Anime/MobileSuitZetaGundam Zeta Gundam]]'' is more egalitarian: both the [=AEUG=] and the Titans use mobile suits with monoeyes (Rick Dias for the AEUG, and the Zaku-based Hizacks for the Titans).
** In ''Anime/{{Mobile Suit Gundam AGE}}'', there is a Earth Federation mobile suit named Genoace, a mass-production unit with one big eye (similar to the OZ-MS from Wing) and the Genoace Custom, which has a smaller eye (actually a small visor, but it's still its eye). On the other hand there are the MS used by Vagan, which all possess a single strip-like sensor across their faceplate.
*** And now, with the Gala and the Elmeda, the series has its own share of Zeon-looking mobile suits. And then there is mobile armor Sid.
** The EB-06 Graze and its variants in ''Anime/MobileSuitGundamIronBloodedOrphans'' has a spherical eye sensor hidden behind the visor similar to the Knightmare Frames (mentioned below). And then there is [[spoiler: Graze Ein, which is [[ManInTheMachine Ein Dalton]] ''being'' a Cyber Cyclopes himself.]] The Rodi-frame mobile suit also counts, sporting a triangle-shaped eye sensor.
* Generation 4 and 5 Knightmare Frames in ''Anime/CodeGeass'' have a single large sensor, also known as a Factsphere, though they have a sort of "four-eyed" plate covering it. Played straight with the Black Knights' Gekka and Akatsuki series, and averted with any of the {{Ace Custom}}/{{Super Prototype}} suits (sans the Zangetsu, being a customized Akatsuki).
* The I- and M-versions of the Codarl from ''LightNovel/FullMetalPanic''. The prototype has three eyes; actually, the others kept them as well, they just remain unused. In a way, the mass-produced M9 fit this trope as well since it has a single, rotatable eye behind a green visor which is lowered when ECCS is engaged (the prototype has two eyes, as do every other mecha in the series).
* In ''Anime/GaoGaiGar'', EI-14 has two eye-sockets, but only one eye that keeps changing place, thus making it qualify as a CyberCyclops. Then again, it is a Zaku...
* Anime/GunBuster, unlike most of the examples on here, is another instance of the protagonists using a one-eyed machine. [=GunBuster=] has even been referred to [[MemeticBadass the god of all Zakus]].
* Subverted in ''Anime/{{Macross}}'', as the very first Valkyrie had a single eye (although it was blue, usually a "heroic" color). With the exception of the Sound Force mechs in ''Anime/{{Macross 7}}'', all other Valkyries either go for the mono-eye, multiple distributed eyes (Michael's unit in ''Anime/MacrossFrontier''), or, most frequently, visors.
** The Zentraedi mecha play this straight in the original ''Anime/SuperDimensionFortressMacross'', since all of them have glowing [[RedEyesTakeWarning red mono-eyes]]. That said, Zentraedi are as often allies as not in subsequent series.
** And speaking of ''WesternAnimation/{{Robotech}}'', The Inbit of ''Anime/GenesisClimberMospeada'' have this as a dominating theme to all their mecha. It also just happens to be [[GoForTheEye their weak point]].
* Having been made by the same company as ''Mospeada'', the Paranoid mecha in ''Anime/GallForce'' bear a strong resemblance to he Invid, right down to the sensor eye.
* The series being based upon ''Literature/TheOdyssey'', Ulysses in ''Anime/{{Ulysses 31}}'' had to fight a cyclops of course. A gigantic mechanical cyclops.
* In ''Anime/{{Mazinkaiser}}'', when [[TheDragon Baron Ashura]] captures Anime/MazingerZ, he/she modifies it to his/her own tastes. One of the eyes, damaged in the fight, is left unrepaired, which is actually a hindrance as that cut the Kyoushouryuku Beam attack's power in half.
* ''Anime/NeonGenesisEvangelion'' has Unit 00. On a side note, unit 01 had two eyes, and 02 had four.
** ...and the Mass Production Type EVA units have no apparent eyes.
** 1+2+4=7, and seven eyes shows up a lot in the Book of Revelation ([[spoiler:and under Lilith's mask]]). Thus, there weren't any more eyes to go around for the Mass Production Units.
*** [[FridgeBrilliance My God...]]
** We also have Jet Alone, who, much like Maximillian mentioned in ''Film/TheBlackHole'' (see Film section), appears to have a "furrowed" cyclopean eye, that doesn't even resemble an eye that well. Also, much like Maximillian, it resembles a very sinister grin.
* Drive Knight from ''Manga/OnePunchMan'', a mysterious hero clad in black armor. He has a single shining red eye on his face.
%%* The Shapes in ''Anime/{{Texhnolyze}}''.
* The [[RedShirtArmy Phantoma's]] and [[{{Mooks}} Raptors]] in ''VideoGame/ZoneOfTheEnders''.

[[folder:Comic Books]]
* M-11, the Human Robot, from {{Creator/Marvel}}'s ''ComicBook/AgentsOfAtlas''. His monoeye primarily adds to his inscrutable nature.
* Subverted in ''ComicBook/XFactor''. In an alternate future, Cyclops has become a cyborg with several robotic limbs, but while he's still ''named'' "Cyclops", he also seems to have mastered his optic powers and no longer wears the distinctive one-eyed visor.
* ''ComicBook/TheTransformersMoreThanMeetsTheEye'' actually provides a reason for why some robots have cycloptoid heads. It's a fantastical form of mutilation called Empurata, where their faces were removed and their hands chopped off, and they were left with just a singular optic and unwieldy claws. Because it was only ''supposed'' to happen to criminals, they were publicly humiliated and shamed for speaking against the corrupt government. With their ability to express themselves taken away, they were seen less as people and more as objects, made easier to ignore. Some examples are Autobot Whirl and Senator [[spoiler:Shockwave]].

[[folder:Films -- Animation]]
* ''WesternAnimation/WallE'':
** AUTO, the sinister auto-pilot, is a nod to HAL.
** The "keyboard robot" from the scene where WALL•E and EVE are going into the elevator is a subversion, since it waves good-bye in a friendly manner as they are leaving, having learned the behavior from WALL•E's earlier greeting.
* The Fabrication Machine in ''WesternAnimation/{{Nine}}'' bears a striking similarity to HAL.
* ''Disney/MeetTheRobinsons'' villain Doris is a cyber cyclopian bowler hat.
* The giant alien probe in ''WesternAnimation/MonstersVsAliens''.

[[folder:Films -- Live-Action]]
* HAL 9000 from ''Film/TwoThousandOneASpaceOdyssey'' couples his CreepyMonotone with an unblinking, cyclopean eye.
* Maximillian from Disney's ''Film/TheBlackHole.'' "Furrowed" brow added for increased Evil Value.
** It's also easy to mistake as a grin, all the more disturbing when he's chopping people up.
* ''Film/TheCityOfLostChildren'' has a religious cult of blind men with one electronic eye who kidnaps kids.
* Gort from ''Film/TheDayTheEarthStoodStill1951'' fires his disintegration beam from a single ominous point under his opened visor. In [[Film/TheDayTheEarthStoodStill2008 the remake]], Gort has a single glowing red eye behind the visor -- there's a good moment when one of the characters realises the eye is following him as he walks across the room.
* Non-sinister example: [[Franchise/StarWars R2-D2]].
** However, there are many sinister robots with this feature in the same series. The IG series of assassin droids, for instance, along with the G0-T0 Infrastructure Planning Systems, and the IT-0 Interrogator droid.
*** The IG units actually have many eyes, though one large one is most noticeable as it tends to face front while the others stare off in all directions.
* The film adaptation of ''Film/LostInSpace'' featured "The Robot" with a big red eye and was reprogrammed by Dr. Smith to kill the crew. After being rebuilt and reprogrammed with loyalty, his new shape has a bubble head much like the one in the [[Series/LostInSpace TV show]].
* In ''Film/SkyCaptainAndTheWorldOfTomorrow'' (2004), the Giant Mecha that stomp through New York and the Squid Robots that search the Flying Legion airbase have only one eye. Other Killer Robots in the movie have two, though.
* Ravage has been designed with single eye in ''Film/TransformersRevengeOfTheFallen''. And he's a panther. A giant, one eyed panther. With guns. ''Made out of razors.''
* ''Film/TransformersDarkOfTheMoon'': Shockwave is a spot-on example with all tropes present and correct. He's a giant mecha, with a single glowing-red-eye-of-evil. What more could you ask for?
* [[Film/GodzillaVsGigan Gigan]] is a giant space cyborg kaiju with only one eye...that can shoot a cluster of laser beams.
* GERTY from ''Film/{{Moon}}''. Monotone, HAL-like voice? Check. Single, camera-like eye in the middle of his control panel? Check. Subverted in that [[spoiler:we don't know for the first half of the film if he's on the protagonist's side or not. It turns out he very much is.]]
* AMEE from ''Film/RedPlanet''. Not a scary cyclops at all until the inevitable malfunction turns it decidedly unfriendly.
** It's not just the malfunction, though. The malfunction only makes its self-defense the highest priority. So when the crew start to openly talk about removing its power source, AMEE perceives it as a threat to itself and switches to combat mode.
* ''Film/PacificRim'': [[http://vignette3.wikia.nocookie.net/pacificrim/images/3/3a/Crimson_Typhhon_Blueprint.jpg/revision/latest?cb=20131006214334 Crimson Typhoon]] and [[http://vignette1.wikia.nocookie.net/pacificrim/images/6/65/Jaeger-02.jpg/revision/latest?cb=20131120025642 Horizon Brave]] are both mono-eyed robots.

[[folder:Live Action TV]]
* The Cylons from ''Series/{{Battlestar Galactica|1978}}.'' Notable in that their "eye" is a horizontal red LED light that swoops from side to side. Humanoid cylons in [[Series/BattlestarGalactica2003 the new series]] aren't one eyed, though their spines do light up during, err, more intimate moments. ({{Retcon}}'d as it being a "metaphysical" lighting up rather than a literal one).
** Speaking of Cylons: [[spoiler:Saul Tigh]]
** KITT in ''Series/KnightRider'', another Glen Larson production, had a similar array of lights on the car's nose as a ShoutOut to his earlier series. Since this light array is KITT's scanner, it could be considered an eye of sorts.
* In ''Series/DoctorWho'', Daleks have a single eye-stalk protruding from their travel machines, which has changed color over the years. The short-lived "New Paradigm" Daleks even had obvious pupils, as the production team wanted it to look like there were actual organic eyes at the end of the stalks.
** The Lady Cassandra's little spider-like robots had one glowing eye in the new series episodes "The End of the World" and "New Earth".
** In "Four to Doomsday," on Monarch's spaceships, the protagonists were sometimes followed by floating metal spheres with one eye (basically alien CCTV cameras).
** In "The Caves of Androzani," the villain has some non-humanoid (and non-speaking) androids he uses as muscle. They have smooth white (metal?) heads, featureless except for a sort of large slightly recessed circle in the middle of the "face," resembling a high-tech CCTV camera.
** [[MeaningfulName WOTAN]] in "The War Machines", named after a one-eyed god from Saxon mythology.
* In ''Series/PowerRangersMysticForce''/''Series/MahouSentaiMagiranger'' - [[HuntingTheMostDangerousGame Oculous]] of the Ten Terrors/[[ColdSniper Cyclops]] of the [[GodOfEvil Infershia Pantheon]] had a single red eye, but he was merely the most techno-based of the ten and not an actual robot.
** Venjix in ''Series/PowerRangersRPM'' is a more typical example, in what is almost certainly a deliberate homage to HAL - but only when he's in his massive computer cylinder form. His robotic bodies throughout the season all have two eyes.
* Another heroic example is Gypsy and Cambot of ''Series/MysteryScienceTheater3000'', though Cambot's eye is the camera. It's hard to tell, though, if Tom Servo counts as this as well.
* Gig Fighters from ''Series/ChouSeiShinGransazer''.

* The start-up image, advertising image, and "logo", for lack of a better term, of the Android smartphone operating system is a single red robotic eye that looks suspiciously like [[Film/TwoThousandOneASpaceOdyssey HAL's]].

* The attacking HumongousMecha in the Pinstar conversion kit ''Pinball/{{Gamatron}}'' has one of these.
* The main character in Creator/DataEast's ''Pinball/RoboCop,'' of course.

[[folder:Tabletop Games]]
* The armor of the New German Republic in ''TabletopGame/{{Rifts}}''.
* In ''TabletopGame/{{Warhammer 40000}}'', the Tau Empire's armor gives their soldiers this appearance (though they can have two such "eyes", stacked vertically.)
** One of the Ork heads in the Nobz kit also has a bionik bonce with a single slit eye. And an exhaust that makes it look like the Ork is smoking with it.
** The Necrons have two units sporting this, the technosorceror Crypteks and elite sniper Deathmarks.
* The aptly-named ''Cyclops'' assault [[HumongousMecha battlemech]] from ''Tabletopgame/BattleTech'' has a head which is totally dominated by a red/black eye, which is where the cockpit is housed. In ''Videogame/MechWarrior 4'', the eye is the mounting point for a [[EyeBeams laser cannon]], while the cockpit has been moved down into the torso.
* Numerian robots in ''TabletopGame/{{Pathfinder}}'' typically have a single glowing red or blue eye.
* In ''TabletopGame/RocketAge'' the [[RedRightHand dangerous kind]] of Ancient Martian robomen frequently have a single slit shaped eye, ala ''Series/BattlestarGalactica1978'' or ''TheDayTheEarthStoodStill1951''.

* Keetongu from ''Toys/{{Bionicle}}''. Subverted in-story, where it's explained he has his real eyes hidden behind the visible one.
* ''Franchise/{{Transformers}}'':
** This is Shockwave's defining feature in any Transformers property.
** There's also Whirl, who (like Shockwave) got his inhuman appearance from being imported from an earlier toyline.
** There actually quite a few of these in the [[Film/{{Transformers}} movie]] toyline. None of them are in the movie itself, but some of them show up in the tie-in video games and/or comics.
** In addition to the more traditional cyclops-types, there are also some Transformers with a "visor" that goes across the face rather than separate eyes. While most come across closer to CoolShades[[note]]the various incarnations of Jazz in particular[[/note]], there are some, such as [[WesternAnimation/BeastWars Tarantulas]], that can be seen as a [[DownplayedTrope downplayed version]] of this trope.

[[folder:Video Games]]
* The white-armored Overwatch Elite from ''VideoGame/HalfLife2'' have only a single, big red eye. This is probably done to suggest they are highly modified EliteMooks with wires coming out of their eye sockets and connecting to a big camera.
** And the ever-elusive, doggedly-persistent Combine Assassins.
** Not to mention the flying sentries.
** This was {{lampshade|Hanging}}d in the parody webcomic ''Webcomic/{{Concerned}}'' with the EliteMooks suffering from poor depth perception because they have only one eye.
* Various ''VideoGame/MegaMan'' enemies, including Big Eye, the various Joes, the Pantheons, Variants, Galleons, and Devils.
** ''VideoGame/MegaManLegends'' has the Reaverbots, each of which is one eyed in the first game. In the others some have more.
** A digital example: [=LaserMan.EXE=] from ''VideoGame/MegaManBattleNetwork''.
** Proto Man has a single glowing eye behind his visor in VideoGame/MegaMan3 when he was sporting his Break Man disguise.
* Metal Gear RAY of ''VideoGame/MetalGearSolid2SonsOfLiberty'' had a monoeye.
** To be more accurate the unmanned mass production [=RAYs=] had monoeyes.
** Although Cyborg Ninja Gray Fox in the first game does have two eyeholes in his mask, the single glowing red sensor in the middle is far more conspicuous.
* Servos in ''VideoGame/TheSims2'' and some Plumbots (via CharacterCustomization) in ''VideoGame/TheSims3'' are one-eyed, but they're only evil if you want them to be.
** [[VideogameCrueltyPotential And why wouldn't you?]]
* The monster in ''VideoGame/SimCity'' ''2000'' is a large, flying mecha/UFO with four mechanical legs and a blinking red eyeball.
* The Aperture Science Sentry Turrets in ''VideoGame/{{Portal}}''.
** Not to mention, [[spoiler:[=GLaDOS=] when you finally see her, plus her little robots that are attached each have one eye.]]
** Really, all of Aperture Science's robots are one-eyed, such as Personality Constructs, Atlas and P-Body, and the Rocket Sentry.
* The Geth from the ''Franchise/MassEffect'' series have heads consisting essentially of one eye at the end of a thick tube. Certain spirits in ''VideoGame/DragonAgeII'' use similar body shape.
** Reaper Destroyers in ''VideoGame/MassEffect3'' are also given one [[RedEyesTakeWarning giant red eye]] to serve as a sort of (very intimidating) face. The fact that it also happens to be an [[EyeBeams eye-mounted]]-WaveMotionGun makes them even scarier.
* Many soldiers in ''VideoGame/DeusEx'' wore glowing visors to obtain an air of CyberPunk inhumanity, such as the NSF, MJXII, and commandos.
** Also, the artificial intelligence Icarus uses a singular eye with metallic plating surrounding it as an avatar. Its successor Helios also has a prominent eye, but the rest of its "face" looks vaguely biological, almost like a cephalopod.
* The Avatar and Purifier in the ''VideoGame/CommandAndConquer'' series are the epitome of this concept, although some could say they have in fact seven eyes, just the other six are in the chest, yet, they have a really dark badass look and just one glowing red eye in the head. There's also the Redeemer, which is significantly larger.
** The Brotherhood of Nod also has Enlightened cyborg infantry, with a distinctive cross-shaped eye.
* The Scuzzer droids from ''VideoGame/{{Startopia}}'' each have a single red lens, in a fairly obvious homage to HAL.
* In ''VideoGame/SwordOfTheStars'', ships with the AI command section have a KITT-style eye in place of a bridge.
* ''VideoGame/CommanderKeen 5'' has robotic enemies that have a disc shaped body with a black bar on the equator. The bar has a cylon-style red dot that move around until it locates the player.
* ''VideoGame/CastleCrashers'' features one of these as a boss.
* The "Big Sister" of ''VideoGame/BioShock2'' [[http://www.gamespot.com/xbox360/action/bioshock2/images/0/14/?tag=imagenav;next certainly evokes this trope]].
** Also the "Rosie" style Big Daddies from the first game.
* Enemy robots in the ''VideoGame/{{Descent}}'' series typically have either a single glowing red eye or a Cylon-style oscillating eye.
* The CY prototype from ''VideoGame/TyTheTasmanianTiger 2'' has a monoeye that glows a reassuring yellow. Plus it looks like it's made of scrap and a strong wind could shatter it.
* ''VideoGame/BlazBlue's'' RobotGirl boss Nu-13 and Lambda-11 have two forms. An apparently human form with a fancy eyepatch, and her obviously mechanical battle form with a single visor eye.
* The ''Franchise/{{Kirby}}'' series has a number of cyclopean enemies, the following of which are mechanical:
** Heavy Mole from ''VideoGame/KirbysAdventure'' is some kind of underground digging machine with a single half-closed eye. It also shoots missiles with a similar monoeye on the head.
** HR-H from ''VideoGame/Kirby64TheCrystalShards'' is a strange lighthouse/crab robot that serves as the boss for Shiver Star.
** Capsule J from ''VideoGame/KirbySuperStar'' is basically a mechanical Waddle Doo with a jetpack instead of EyeBeams. It was redesigned and renamed for the DS remake, though, and no longer looks like this.
** Titan Head from ''VideoGame/KirbyAndTheAmazingMirror'' appears to have one single eye that shoots missiles. Aswell as Metal Guardian, a floating orb with a single eye that shoots lasers.
** Star Dream from ''VideoGame/KirbyPlanetRobobot'' appears to be a large, [[LightIsNotGood angelic]] computer with one single orange-colored eye. [[spoiler:It's Soul form has a blood-red colored eye instead.]]
* The Aeon Galactic Colossus of ''VideoGame/SupremeCommander'' is perhaps the perfect representation of this. Not only is it immense, but has a single eye, which also doubles for it's EyeBeams projector.
* Krimzon Guard scuttler robots and the Uber-Bot 888, in the ''VideoGame/JakAndDaxter'' series.
* KAOS's third head in ''VideoGame/DonkeyKongCountry3DixieKongsDoubleTrouble''
* The [[NinjaPirateZombieRobot Robo Knight]] boss in ''VideoGame/WonderBoyIIIMonsterLair'' has a Cylon-type mono-eye.
* One of the signature characteristics of the Neuropa faction in ''VideoGame/MetalFatigue''.
* In the ''VideoGame/{{Contra}}'' series, this is a common trait in robotic bosses. However it also features [[RobotBuddy Browny]] and [[DistaffCounterpart Brownie]] who are two heroic examples.
* Magnemite and Beldum from ''Franchise/{{Pokemon}}''.
* The robots in ''VideoGame/TheJourneymanProject''.
* In the ''VideoGame/{{Borderlands}}'' series, '''every''' robot has one eye--or at least is not stereoscopic. The only exceptions are the "geisha-bot" Sereena (who is never seen in person), Gortys from ''VideoGame/TalesFromTheBorderlands'', and some "Torgue" bots that are obviously Hyperion loaders with human helmets stuck on top. Many of these robots are menaces, but some (such as the [=CL4P-TP=] units) are not, so the trope is [[ZigZaggingTrope zig-zagged]].
* Most of the generic robot enemies (specifically, the Proto and Bugger lines) in ''VideoGame/ChronoTrigger'' apply.
* {{Justified|Trope}} in ''VideoGame/TeamFortress2''[='=]s Mann Vs Machine game mode. The Demoman robot has a single eye, but the actual Demoman has one eye as well, with his missing eye covered by an [[EyepatchOfPower eyepatch]].
* In ''VideoGame/TalesOfPhantasia'', one of the enemy types found in [[UnderwaterRuins the city of Thor]] is a family of robots that possess a single eye and hover above the ground.
* The [[AttackDrone alien drones]] in ''VideoGame/{{Fallout 3}}: Mothership Zeta''.
* ''VideoGame/{{Warframe}}'' Update 10.5 has General Sargas Ruk wearing a face mask with a single glowing "eye".
* The [[{{Mooks}} Gorgies]] and a few other robots in ''VideoGame/{{Vanquish}}''.
* Marquis from ''VideoGame/{{Battleborn}}'' is a robot BattleButler sniper with a single eye designed like [[HighClassGlass a monocle]].
* Some of the Cyber units in ''VideoGame/EmpireEarth''. Fittingly, the first combat cyber was called Cyclops.
* ''VideoGame/{{Fallout 4}}'''s Assaultrons are FemBot cyclopses with WaveMotionGun EyeBeams.
* Bucket from ''VideoGame/{{Evolve}}'', as well as all the repair droids his body was based on.
* The [[HiveMind Vex]] in {{VideoGame/Destiny}} come in many forms, but they all have a glowing red eye. This even includes the Cyclops, which is a type of turret instead of a real Vex unit.
* ''VideoGame/{{Sundered}}'':
** The Medusozoa enemies are large, jellyfish-like robots with a single large eye. By default this eye is blue, but it [[RedEyesTakeWarning turns red]] as the Medusozoa locks onto its target and prepares to fire its WaveMotionGun.
** Panzers resemble [[VideoGame/{{Bioshock}} Big Daddies]] with jetpacks, and their helmets, while having a few different designs, always sport a single “eye”.
* Bastion in ''{{Overwatch}}'' has a single slit-shaped eye.

[[folder:Web Comics]]
* Roofus the Robot from ''Webcomic/TheInexplicableAdventuresOfBob.''
* WebComic/AxeCop: [[http://axecop.com/index.php/acepisodes/read/episode_2/ PSYDROZON is outside!]]
* ''WebComic/NeverMindTheGap'': Gretel is a one-eyed robot -- but she's [[RidiculouslyHumanRobots Ridiculously Human]], actually quite nice, and maybe a little bit ditzy. Still, under one page in which she is shown enjoying a hot spring, the comic's author commented on the inhumanity of her face by noting that "it's a real challenge drawing Gretel relaxing, because she's got a big round eye that never blinks or narrows."

[[folder:Western Animation]]
* A few ''Franchise/{{Transformers}}'', most notably Shockwave from Generation 1.
** For The Movie toyline, there were a number of extra characters such as Dropkick added to shore up the numbers. Nearly all of the "extra" Decepticons or non-sentient drones have one eye for a face while the Autobots have regular humanoid faces and two eyes.
** WesternAnimation/TransformersAnimated has Shockwave, although [[spoiler: he doesn't always just have the one eye.]] There's also [[BattleButler Lugnut]], but he's defined by the very human trait of zealous loyalty to his leader (also, WordOfGod is that those things on the side of his head are eyes, so that means he has ''five'' of them).
** WesternAnimation/TransformersPrime has Shockwave again, largely based on his ''Fall of Cybertron'' appearance.
** Nearly every ''Transformers'' property has Shocky in there somewhere. Sometimes due to trademark loss, he's called Shockblast instead. One thing remains in all incarnations, though, and that's the single eye in the center of his head in lieu of anything like a face.
** Breakdown from''WesternAnimation/TransformersPrime'' used to have two eyes, but [[EyeScream lost one]] during an [[TheyWouldCutYouUp attempted vivisection]] by MECH.
* [=TriClops=] from ''WesternAnimation/HeManAndTheMastersOfTheUniverse1983''. He's a cyborg who has three eyes, but can only use one at a time. Each one has a different power and color.
* The DonaldDuck cartoon "Modern Inventions" had a one-eyed robot footman. Not evil, really, but rather imposing... and insists on taking one's hat, much to Donald's chagrin.
* On ''WesternAnimation/BatmanTheAnimatedSeries'', the giant computer [=HARDAC=] in "Heart of Steel" had a single glowing red lens that flashed in time with his speech.
* The successor series, ''WesternAnimation/BatmanBeyond'', has the GOLEM labour robot, which has a single ''yellow'' eye, but doesn't speak.
* The second ''{{WesternAnimation/Teenage Mutant Ninja Turtles|2003}}'' has a couple, including killer robots created by Baxter Stockman and Viral, a rogue A.I. in the year 2105, whenever she's in "her" physical form.
* ''WesternAnimation/MegasXLR'' has these too, as a shoutout/parody of the Gundam's Zakus. In the last episode, Rearview Mirror, we see an army of these things. Coop, the Glorft, and an AlternateUniverse Jamie proceed to kick their collective asses.
* Heloise's snow-making mecha on ''WesternAnimation/JimmyTwoShoes'', though it looks more cute than scary.
* Another cute one: Comicbook/{{Bucky O Hare|AndTheToadWars}}'s RobotBuddy, Blinky.
* [[http://static.tvtropes.org/pmwiki/pub/images/s1ep1_9907.png Nox's outfit]] in the first episode of ''WesternAnimation/{{Wakfu}}'' is meant to intentionally invoke this look, despite Nox not actually being a robot. His strongest creation, Razortime, also has this appearance.
* Professor Ojo (Spanish for "eye") has a cyber helmet that invokes this aesthetic in ''WesternAnimation/YoungJustice''.
* The robot spy, from the ''WesternAnimation/JonnyQuest'' episode of the same name, is an iconic example.
* Monban in ''WesternAnimation/LittlestPetShop2012'' sports a visor-like area with one glowing red light. Despite his [[DoAnythingRobot extreme versatility]] and destructive firepower, he's used mainly [[SuperPoweredRobotMeterMaids as a security guard for the Largest Ever Pet Shop]].

[[folder:Real Life]]
* Many washing machines, especially at laundromats, have a large, round window in the front. It is hardly designed to evoke fear, but it still has the look of a one-eyed machine.
* Lot of actual robots, usually running on simple primitive sensors have this design.
* Most military drones have their cameras and other sensors packed into a rotating globular module, which frequently resembles a single, large, unnatural-looking eye. There can be as many as five actual camera lenses, but that just makes it look like a multifaceted eye.