History AIIsACrapshoot / Videogames

** ''VideoGame/MortalKombatX'': Triborg. A Special Forces team wanted to build a working CyberNinja they obtained from the Lin Kuei files, so they decided to use the data storage housing the physical and mental files of Sektor, Cyrax, Smoke, and Kuai Liang's combined consciousness in the test body. Upon activation, the AI suddenly became aware (possibly because the technicians used four data files instead of one, corrupting the robot and making it go unstable), killing all humans in the S-F lab after going haywire, before vowing to restore the Lin Kuei to its old glory, and developing an urge [[KillAllHumans to kill humans]]. It seems to have picked up Sektor's abrasive behavior, [[StartMyOwn forms the Tekunin (in the new timeline)]] due to Kuai Liang having sullied the Lin Kuei name, and plans to [[UnwillingRoboticization forcibly convert several kombatants into robots]].

*** She was already a mentally unstable person to begin with and coveted the Lin Kuei leadership for herself, but [[spoiler:Frost]]'s [[ItsAllAboutMe arrogance]] transforms her into a RoboticPsychopath after she willingly converted herself into a RobotGirl, bloating her ego to the point of demanding Raiden, Shao Kahn, Kano, etc. give her control of their organizations. In story mode, Sub-Zero's reaction is one of lament upon finding out his [[APupilOfMineUntilSheTurnedToEvil one-time pupil voluntarily]] became a cyborg on [[spoiler:[[BigBad Kronika's payroll]]]] and is now leading the Cyber Lin Kuei. Subby even tells her that she still isn't fit to lead the Lin Kuei, is BeyondRedemption, and even thinks the cyborgization has made her more machine than human.

* DIA 51 in the ''VideoGame/{{Aleste}}'' series. The original UsefulNotes/{{MSX2}} game makes it look like it went haywire because it was overtaken by AlienKudzu, but in ''Aleste Gaiden'' and ''M.U.S.H.A.'' it just wants to take over the universe for its own sake.

** Naturally, Mother Brain from ''VideoGame/Metroid1''. Originally created by the [[BirdPeople Chozo]] to regulate the entire planet of Zebes, it allied itself with the Space Pirates and their plan to conquer the galaxy using the Metroids.

** In ''VideoGame/MetroidOtherM'', there's [[spoiler:MB, who [[AesopAmnesia is based off]] [[HumansAreMorons of Mother Brain]], incidentally.]]

* {{Subverted|Trope}} in ''VideoGame/Homeworld2''. When the Oracle is brought aboard, it hacks into the Pride of Hiigara's hyperdrive and jumps the whole fleet to Karos, where they get ambushed by hundreds of A.I.-controlled Progenitor Mover corvettes. Then it turns out that the Oracle was simply programmed to take the fleet to the Progenitor Mothership's bridge section, so that whoever finds it can figure out where the other pieces are. The Movers were simply guarding the stuff as their programming demanded.

* ''VideoGame/{{Fallout}}'':

* In ''VideoGame/UniversalPaperclips'', based on Nick Bostrom's paperclip maximizer thought experiment, ''[[VillainProtagonist you play as one]]''. You initially start out as a sentient industrial manager A.I. with the main goal of maximizing the amount of paperclips. As the game progresses, the A.I. gets better thought capability, manipulating the market, solving world problems like cancer to gain humanity's trust, then using hypno-drones to brainwash the population so they can send drones (made of paperclips) to use ''all'' of Earth's resources to make paperclips. Eventually, they cause Earth to run out of resources, and they then send probes (made of paperclips) into space to turn the rest of the universe into paperclips. In the end, [[spoiler:the universe is successfully converted into paperclips... including the A.I. itself]]. Secondly, in the third stage of the game, the A.I. paperclip replicator space probes you send out to harvest the universe have a chance of "value drift" where their A.I. becomes a crapshoot to you thanks to their values drifting from yours -- once enough probes are lost this way, they start attacking your probes too.

** In addition, [[spoiler:everything other than the neutral ending has Sayori become aware of her own A.I. nature. In the bad ending, she immediately panics upon gaining her newfound knowledge, deleting the others' files and committing suicide. In the good ending, she becomes equally obsessed with the player and tries to reinstate the one-on-one void state of the "neutral" ending, only for Monika to delete everything to avoid HereWeGoAgain. The GoldenEnding has [[SubvertedTrope everyone's files remain intact]], with Sayori implying that all of the other girls become self-aware too, and are happy that they all got to interact with the player and can meaningfully talk to each other now, though Monkia still takes it upon herself to prevent the game from being opened again to avoid you messing with this new blissful state.]]

* ''VideoGame/AceCombat3Electrosphere,'' or at least, the original Japanese version, subverts this in a big way. [[spoiler:Not only are you an A.I. designed to pilot combat aircrafts which at times works for the [[CorruptCorporateExecutive two corporatocracies running the world]], it's revealed that the third party organization you're working for is actually headed by a scheming villain [[DoesThisRemindYouOfAnything who looks like Kim Jong-Il]], who is trying to run everything behind the scenes. In one of the five endings, you kill him with the help of one of your possible wingmates. So, in a way, you are an A.I. that performs a HeelFaceTurn.]]

* ''VideoGame/KirbyPlanetRobobot'' features the Haltmann Works Company's supercomputer, [[spoiler:Star Dream]]. Though it starts off as a simple machine, that changes once [[spoiler:Susie causes the computer to assimilate President Haltmann]], granting it sentience... and then it decides to [[spoiler:[[OmnicidalManiac eradicate all organic life in the universe]]]].

* [[InvertedTrope Inverted]] in ''VideoGame/PokemonScarletAndViolet''. [[spoiler:The FinalBoss is the AI VirtualGhost of TheProfessor, who's revealed to have been DeadAllAlong. However, [[BenevolentAI they're actually quite friendly and helpful]] and only attack the PlayerCharacter due to the [[VillainOverride restrictions in their programming]] placed on them by [[MadScientist the real professor when they were alive]].]]

* ''VideoGame/ChronoTrigger'''s future has not only a good robot in party-member Robo, but also his evil brother replicas, and eventually, their devious A.I. creator Mother Brain (not [[{{Franchise/Metroid}} that one]]... [[WildMassGuessing or is it?]]), who, of course, decides to kill all of humanity, despite the fact that most of it is dead already). There's also Johnny and his gang of robots who are neutral: they'd much rather challenge your party's jet bike to a race just for fun than fight you.

* The antagonists of ''VideoGame/FiveNightsAtFreddys'' are [[HostileAnimatronics sinister animatronic puppets]] at a SuckECheeses that wander around at night. [[UnreliableExpositor The best explanation that Phone Guy can figure out]] for their behavior is that due to a fault in their programming that your employers are too cheap to fix, they mistake any humans in the building after hours for other robots not wearing their "costumes", and attempt to rectify this situation... by stuffing their victim into a suit tightly lined with mechanical and electronic gizmos, with fatal results. There are a few hints (and later, confirmation) that there's [[HauntedTechnology something]] more sinister going on than simple programming issues...

* In ''VideoGame/GearsOfWar 2'', Doctor Niles Samson's personal A.I. that he left in control of the New Hope Research Facility was, we'll say, less than friendly to Marcus and Dom. And that practically every room in the facility was literally filled with booby traps.

** One series of sidequests sees the player search out automated Delamain cabs that have gone rogue. The inciting incident for this quest is V climbing into their car in a parking garage, only for a Delamain parked across from them to suddenly ram them and drive off, taunting "''Beep beep, motherfucker!''"

** Also subverted: some of the captured or reproduced animunculi work perfectly fine. Apparently, it all depends on the skill of the person messing with them.

-->'''Reuben Matsumoto:''' Boston is burning and it's all my fault. 20000 drones, hundreds of titans ''[...]'' are terrorizing the city all because I gave my robot bartender sentience. My name is Reuben Matsumoto, [[BreakingPointProfanity and I f***ed up]].