[[quoteright:256:http://static.tvtropes.org/pmwiki/pub/images/kq3_8310.jpg]]

''King's Quest III: To Heir is Human'' is the third game in the ''VideoGame/KingsQuest'' series. It is the first game where you play as someone other than King Graham of Daventry. It is famous for its particularly brutal CopyProtection.

In the game, you are Gwydion, the slave of the evil sorcerer Manannan; you cook and clean for him, but long for freedom. One day, Manannan decides to go on a journey, and the race is on-- you now have the ability to explore the land of Llewdor and find a way to escape the evil man. But escape is only part of the adventure-- you also have a burning desire to find out who you are, where you came from, and how you can get home...

At first, this story seems unconnected to the earlier two ''King's Quest'' games and even caused a small bit of controversy when the game first launched, due to Gwydion having no obvious link to the royal family of Daventry. The connection between games is revealed only at the end of the first act, [[LateArrivalSpoiler and if you've played the later games, you know what it is already]].

----
!!This game provides examples of:
* AdultFear: Graham paralyzed by grief. His son was kidnapped from his cradle and enslaved by his enemies ''somewhere,'' his kingdom has been burnt to cinders by a dragon that his best efforts cannot defeat with innocents suffering and dying on his watch...and then his only remaining child offers herself up as a HumanSacrifice. The canonical game shows this towards the end and its explained by Rumplestiltskin and Rosella, and in the ending.
* AllThereInTheManual: All of the spell formulas.
* BigfootSasquatchAndYeti: You have to evade a ravenous one in the icy mountains surrounding Daventry.
* CameraScrew: When walking down the mountain, your view is obscured by rocks and you have to guess where the path is.
* CantGetAwayWithNuthin: The wizard has the nasty habit of punishing you for arbitrary reasons. More importantly, if you happen to carry any magical components, including such innocuous items as a fly's wings or a cat's fur, [[spoiler:or have misplaced the magic wand,]] he will kill you instead. ZAP!
** The innocuous items punishment is justified, however: Manannan might have raised you from childhood, but he's not been nice about it, and he's absolutely ''paranoid'' that you might learn to do something about that before he can find another child to raise (at which point he'll kill you).
* CatsAreMean: The black cat in the wizard's house really hates Gwydion and can even kill him if he's not careful! [[spoiler: Also, you defeat Manannan by turning him into an obviously mean-tempered cat.]]
* CopyProtection: An infamous case--you need the manual to cast the spells, and you have to cast them exactly as they are in the book. The spells are very complex and one typo will have you dying. Oh, and you absolutely have to cast several of the spells to beat the game. As if that wasn't enough, in the original packaging the spells in the manual were written to look like flowy handwriting, which could make them difficult to read. In later collections the spells are printed in a readable font, but at least one of them contains a wrong instruction that makes the game impossible (hint: if your version tells you to "measure a spoon of cactus juice" you've got the one with the mistake).
* CoolAndUnusualPunishment: Manannan's idea of punishing Gwydion is to force him to do the [[Music/VillagePeople Y.M.C.A. dance]].
* DarkerAndEdgier: While maintaining much of the bright and cheery art style of the previous two games, and the often whimsical and cartoony style of deaths/punishments/accidents, etc, and a not-so-serious narrator; ''King's Quest III'' was accused of being a much darker game.
* DidNotThinkThisThrough: If Manannan kidnapped Gwydion as a baby, then he would have to deal with a crying infant and changing diapers for a long time. The manual doesn't even handwave this when it states the wizard "could" summon spirits to do that for him (but doesn't, because he prefers his solitude). He kidnaps the boys in the first place because he doesn't like nor does he summon spirits.
** This is justified, that the manual states the summoned spirits are natural pranksters, which Manannan wants nothing to do with. This is one of the two reasons why he simply doesn't use the spirits as his slaves, instead of a human child. He prefers oppressing children and forcing them into hard work and toil, and possibly he actually [[ForTheEvulz enjoys killing his mortal slaves]].
** Not using spirits is justified. But why kidnap a baby that he'll have to look after for years before it can serve him in any way? It would make more sense to wait until a child was at least old enough to walk!
** Not to mention kidnapping the [[spoiler: crown prince of Daventry was not particularly wise, even for revenge purposes. King Graham has a lot of resources to search for his son, and the boy probably will have a great deal of his father's valor and ingenuity.]]
* DigitalPiracyIsEvil: That so many people remember being frustrated by this game is a sign of how widespread piracy was even back then: the game is ''remarkably'' easy if you have the actual game manual which contains the spell formulae. Gathering the ingredients and casting the spells covers about two-thirds of the game. There is actually a debate on if the manual was intended as copy protection, but rather a feature, as at least two hintbooks reprinted the manual in complete form including page numbers (with one only leaving out a couple of optional counter spell phrases), and ''VideoGame/KingsQuestIIIToHeirIsHuman'' had its own software based copy protection on the disk itself..
* DespairEventHorizon: The Oracle explains that Graham has passed this due to [[spoiler: Rosella being chosen as a HumanSacrifice]], which is why he cannot fight the dragon.
* DistinguishingMark: Gwydion has one that shows [[spoiler:he's Prince Alexander of Daventry]]. That's on his ''backside'', mind. Which [[spoiler:his sister Rosella]] asks he reveal as proof.
* DropInNemesis: Manannan will use any excuse he can to appear out of nowhere, and either torment you for not performing your tasks, or just flat out kill you on the spot for doing something that might be a threat to him. Finally getting rid of him feels ''really'' good.
* EasterEgg: Look behind the tapestry near Alexander's room for a reference to KQ4. Half-dome can be seen in the mountains, as well as Sierra water.
* EscortMission: In one part, Alexander escorts Rosella back into the palace. While she is able to handle the stairs and the crevices, he on the other hand is susceptable to falling to his death.
* EvilSorcerer: Manannan.
* FairyTale: Typical of the franchise
* FanRemake[=/=]VideoGameRemake: Two of them released. Infamous Adventures created one VGA style graphics and stuck mostly to the original plot (some added scenes and puzzles were changed). Creator/AGDInteractive released one with better graphics and some tie-ins to their ''[[VideoGame/KingsQuestIIRomancingTheStones King's Quest II]]'' remake.
* FantasyKitchenSink: The Three Bears, Medusa, pirates and a three-headed dragon.
* ForTheEvulz: Manannan's motivation for kidnapping and punishing you.
** Though the King's Quest Companion, and Sierra's King's Questions state that he was the brother of Hagatha (the BigBad from the [[Videogame/KingsQuestIIRomancingTheThrone previous game]]) and suggests he kidnapped [[spoiler: Alexander]] specifically to get revenge on King Graham.
* {{Gainaxing}}: In the original version, the barmaid's breasts emphatically bounce as she brings the brigands fresh flagons of ale.
* HeroicBSOD: See DespairEventHorizon
* HistoryRepeats: The documentation says this is exactly why Mannanan got into the habit of killing his slaves when they grow up; they almost always got brave enough to start poking around in his stuff and discovering his magic. It's certainly explained by how he can instantly recognize it when you're carrying around spell components and will kill you right away for it.
* HoistByHisOwnPetard: The only way to defeat Manannan is to make him have a taste of his own remedy.
** In the ExpandedUniverse material, the cat he keeps was a rival of his, and he's done this more than once.
* HumanSacrifice: Rosella. It's up to you to get her out.
* InstantSedation: The Sleeping Powder you can make works almost instantly, but can only be used in cold and damp places.
* InUniverseGameClock: You only have about 20 minutes to explore the land before Manannan returns. If he catches you outside (or if you forgot to re-hide the secret chamber), then he punishes you. Fortunately, he leaves after a while and you can explore some more. You also have to time yourself so you reach the pirate ship in time, and once on the ship, you have to wait until they spot land. In the later part of the game, the clock is much less important.
** You also have to complete the wizard's tasks within (entirely reasonable) time limits (the game pauses the clock anytime you are typing or in the spell preparation screens), or he punishes you non-fatally. Events are very specific. When he assigns a task there is always three minutes to complete it. He usually assigns it after five minutes of hanging around the house. He normally only hangs around the house for five minutes, unless he has a task to assign which he adds another three minutes to his time spent in the house.
** When Manannan leaves, he is gone for 25 minutes. He sleeps the same length of time.
* InvoluntaryDance: One of the punishments Manannan can inflict on Gwydion, as listed in CoolAndUnusualPunishment above.
* JumpScare: Depending on how desensitized you are to the format. Manannan will appear the hell out of nowhere. He appears very slowly and his leitmotif plays to announce his arrival.
** The brigands also count, as they randomly appear suddenly with a loud tune.
* LateArrivalSpoiler: [[spoiler:Gwydion is Prince Alexander.]] It is referenced many times in all of the later games. This reveal is very easy to miss in this game itself. In fact, the very first scene of ''VideoGame/KingsQuestIV'' summarizes pretty much the entire plot of this game.
* MagicMap: When Gwydion first finds it, the map is completely blank. As he explores Llewdor, though, the map lights up and he can quick travel to that location. Even more than that, when he is both on the pirate ship and the coast of Daventry, the map updates so that it reflects the new region.
* MagicWand: You need to "[[KleptomaniacHero borrow]]" Mannanan's wand to progress. Just be sure to return it before he comes back, or it's GameOver for you. Interestingly, you don't actually use the wand to cast spells. Instead, you use it to "inject" magic into other objects, which are then used to cast spells.
* MosesInTheBulrushes: Gwydion is actually [[spoiler:Prince Alexander, Graham's son, who was stolen from the family when he was an infant]].
* NintendoHard: Even compared to the other games in the series with the overabundance of {{Moon Logic Puzzle}}s and [[YetAnotherStupidDeath stupid deaths]], the addition of a time limit in the first half of the game forces the player to keep a very strict schedule in gathering everything they need to thwart Manannan, not to mention the CopyProtection puzzle listed above.
* OhCrap: Manannan's reaction when he realize what he just ate.
* PixelHunt: One of the ingredients you have to collect for a spell is a snake skin. It is a brown squiggle in the desert--where, incidentally, there are hundreds of other brown squiggles. Happy hunting!
* PointAndClickMap: Well, move-cursor-with-arrow-keys-and-press-enter map, anyway. Unique in that the map is an (optional) actual item that must be found, rather than just a feature of the interface like most other examples of this trope.
* PointOfNoReturn: Once you're on the ship, that's it. Hope you got everything you needed back in Llewdor.
** And again, once you're off the ship, and at various points in the mountains. These are less crucial, though.
* RealMenWearPink: Or at least sleep in a big fluffy pink canopy bed.
* SaveThePrincess: The oracle has just dropped a few bombshells. Massive three headed dragon attacking the faraway land of Daventry, the princess is being sent as a HumanSacrifice. Even better, kid, [[spoiler: she's your twin sister]]. The ship at the dock is headed that direction. What are you waiting for?!
* ScheduleFanatic: The wizard always does things at specific times and takes the same amount of time to do things, which allows Gwydion to know how long he has to carry out certain necessary tasks.
* ShoutOut: The last part of the game takes place in several areas from ''VideoGame/KingsQuestIQuestForTheCrown''.
** The Jaws theme plays when the shark appears.
** The Gnome theme plays when Rumplestiltskin appears.
* SmoochOfVictory: From your sister. [[BrotherSisterIncest Ew, not like that, you pervert.]]
** It's a kiss on the cheek. Still, the embarrassing "proof of identification" (a birthmark on his bum) more than makes up for it. Yes, you end up mooning your sister...
* SpidersAreScary: There's a very large poisonous spider guarding the entrance to the Oracle's cave, which you have to defeat by turning into an eagle.
* StaircaseTumble: Careful on those stairs leading down to the wizard's secret workshop in the basement. Sometimes the wizard's cat will sit on the steps, causing you to trip over it and go flying.
** To twist the wound further, there is a chance you could trip over the cat, while Manannan appears right in time to watch you die.
* TalkingAnimal: Justified, as one of the spell recipes gives Gwydion the ability to understand the language of the animals. He can't talk to them, however.
* TamperingWithFoodAndDrink: You can hide the cat cookie in a bowl of porridge, turning any unsuspecting person who eats it into a cat. [[spoiler:This is how you dispose of Manannan.]]
* ThreateningShark: A shark appears at the beach. Annoy the pirates, and you're thrown overboard as shark food. Jump overboard at Daventry's coast, and you'll have to dodge one.
* TimedMission: You have to hide your stuff before the wizard returns. You also have to catch the ship before it leaves. There is a timer specifically for this purpose.
* {{Unwinnable}}: Many, this being a Sierra game, but of note is the fact that you will never progress to the second half of the game if you don't have the manual with all the spells in it.
* VideogameCrueltyPotential: You can kick Manannan's cat. Gwydion even gets a chuckle out of it.
* WhatHappenedToTheMouse: Little is said of what happens to Manannan's cat after the events of the game, though The King's Quest Companion suggests that nothing was alive and that there was no evidence of Manannan to be found when Derek Karlavagen moved into the house. Presumably it was dealt with one way or another when Mordack checked in on his brother and found out what happened.
----