Call me crazy but when I was a kid I used to play these adventure games obsessively. Each installment in the series has its creepy moments but Parts 1, 3, and 4 are the ones that stick out the most for me. In Part 1, you are subjected to repeated jump scare tactics employed by the game characters at every corner; in particular, the witch in the cave and the troll on the bridge. Part 3 is notable for having an opening that is both oppressive and drenched with creepy atmosphere–namely, an evil wizard's house where you are held prisoner. Part 4 is perhaps the creepiest of them all, with allusions to THE WIZARD OF OZ, SNOW WHITE, and it contains zombies!
I've always found creepy midi music to be extra creepy.
King's Quest games were the bomb when I was in Middle School & early HS. Â I remember playing the re-release of part 1 and parts 2-5. Â Along with the other Sierra "Quest" games, these ate up an amazing quantity of time. Â The gameplay, storytelling, graphics and music were all top notch! Â These games NEED to be on the iPhone!!!
TMC,
You're right!  I don't think I ever noticed it until watching the video link above, but that old MIDI music had a LOT in common with silent movie organ accompaniment.
That ogre's wife whacked me so many times… I can't remember what the puzzle was but I remember nearly going berzerk trying to get past it….