* BigLippedAlligatorMoment:
** The clown in the pool room, with his REEEEEEEEEED BALLOOOOOOOOON.
** The woman who occasionally beckons you down a hallway.
** In one part of ''The 11th Hour'', Ed Knox gives you a warning. Then his head randomly explodes.
** Who expected the random appearance of "Let's Make a Real Deal!" at the end of ''The 11th Hour''? Carl is just as confused.
** When you head towards the telescope in ''The 7th Guest'', a rush of wind threatens to blow open the doors leading outside.
* CompleteMonster: [[BigBad Henry Stauf]], a down-on-his-luck-drifter who resorted to thievery and murder, found he had a talent as a toymaker. He also resorted to the dark arts to help along his career: [[DealWithTheDevil a pact with dark forces]] let Stauf use his toys to spread a disease that [[WouldHurtAChild killed multiple children]], then torment their souls to sate the Evil Powers That Be. To lure in his final required victim, Stauf promised to give six guests in his mansion anything they asked for--if they would assist him in capturing the child. A guest who tried to help the boy was turned into a [[AndIMustScream living mannequin]]. When the last living guest delivers the boy--Tad--to Stauf, he [[YouHaveOutlivedYourUsefulness kills her with acidic bile]]. He then reveals the truth to Tad: the boy was doomed to relive his time in the mansion while having his soul tormented by Stauf for all eternity.
* CrowningMusicOfAwesome: Both of the games' soundtracks are excellent, especially "[[http://www.youtube.com/watch?v=aDsoN48HI54 Skeletons in the Closet]]" and "[[http://www.youtube.com/watch?v=4m5SDmVNo-I The Game]]" from ''7th Guest'' and "[[http://www.youtube.com/watch?v=w28PFvKNAWE Mr. Death]]" from ''11th Hour''. You can [[http://www.fatman.com/ordercds.htm order the soundtracks separate from the games]], though they also come bundled with the GOG.com re-releases.
* DesignatedHero: Carl doesn't exactly [[EstablishingCharacterMoment make the best first impression]] in the ''11th Hour'' intro. His response when Robin says their relationship makes it look like she's slept her way into her position is "Well, didn't you?" He follows that up with a crude joke about her "many talents" and the explicit hope that she'll disappear while investigating Stauf's mansion. He does try to help her, but ''damn''.
* EarWorm: "Dolls Of Doom" is used appropriately in the first game for [[spoiler:the reveal of the dolls that hold children's spirits]]. It is ''horribly'' overused in ''11th Hour'': it is the credits theme and the intro, and it also plays whenever you consult the GameBook (which is a matter of "when", not "if").
* HilariousInHindsight: The animated pictures in the introductory book from the first game are positioned in a way that makes it look like [[{{VideoGame/Myst}} a certain other kind of book...]]
* MoralEventHorizon: Brian, Edward, Martine, and Julia all cross this fairly early in ''7th Guest''.
** Stauf jaunted past it [[EvilerThanThou ''at some time before the earliest part of his revealed history'']].
* MostAnnoyingSound: Ego's most spoken phrases are "I'm going to have to start again" and "Which way should I go now?". The latter is only used for a few puzzles, though (and ''The 11th Hour'' replaces it with a pulsating eyeball icon). When you reset any puzzle in the ''7th Guest'', all the spoken dialogue is repeated.
* {{Narm}}[=/=]NarmCharm: The games aren't nearly as terrifying as they could've been--most thanks to the voice-acting.
* NightmareFuel: Everything about (and having to do with) Stauf counts.
* {{Padding}}: ''The 11th Hour'' is practically one FetchQuest after another, only they're split up by puzzles.
* PolishedPort: The [[IOSGames iOS]] port of ''7th Guest'' eliminates the most annoying part of the original game by speeding up the transitions and load times. This is averted by hotspots that are often too small for the tiny iPhone screen. Some puzzles were also ommitted entirely, including the Microscope puzzle (see the Trivia section for the explanation behind that omission).
* PortingDisaster: This is what happened to the UsefulNotes/PhilipsCDi version--and yes, such a thing did exist. The transition scenes are much smoother and the sound quality is excellent. But the joystick interface is clumsy, some scenes are missing their background music, and loading times are both more common and much longer than in the PC version (one puzzle takes almost twenty minutes to solve even with the lowest number of moves). Some of the puzzles are also missing; amongst them is the infamous [[SolveTheSoupCans soup can puzzle]], which might push this port into PortingDistillation territory for some.
* ThatOnePuzzle:
** ''The 7th Guest'' has the Microscope puzzle, which is a game of Ataxx against the AI. The AI's intelligence is based on how fast a computer's processor can figure out the best possible set of moves in a set amount of time. It was far more possible to beat the game back in 1993; nowadays, you need to lock the available processor speed via an emulator if you want to beat it.
*** ''The 11th Hour'' has the Beehive puzzle, which is pretty much the same puzzle played out on a hexagonal board.
*** In 2013, Trilobyte Games remade the Microscope puzzle into a separate iPad game, ''[[http://www.youtube.com/watch?v=4VheoiJdnUM The 7th Guest: Infection]]''.
** ''11th Hour's'' concluding game of Pente counts. In order to see all three endings, you need to beat the game three separate times. The first time you play the final puzzle, the player gets the first move. On the second playthrough, Stauf gets the first move (which is a hefty advantage all on its own). For the third go-round, Stauf gets the first move ''and'' gets to look ''at least five moves ahead.'' As with the Microscope puzzle, processing speeds have made this game much harder to defeat.
* UncannyValley: By today's standards, the low-res full motion video and the blocky CG backgrounds can seem creepier than what they're meant to represent.
* TheWoobie:
** Tad is one, in case that's not obvious.
** Five of the six guests meet a swift death. Poor Elinor isn't so lucky.

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