- The dream sequences, in which Irenicus gives you increasingly dark and morbid Breaking Lectures. It becomes even worse when you find out the Irenicus that talks to you in your dreams isn't Irenicus at all. Its Bhaal himself, trying to goad you to The Dark Side.
- Anyone familiar with the dream sequences of the first game will likely find the second ones lukewarm at best. The dreams you have in those are much more symbolic, but backed by the narration of Kevin Michael Richardson and an excellent background theme and can be quite freaky to the unprepared, especially if you haven't already been spoiled as to their nature.
- If you visit the Temple District at night, you'll run into a Shadow Thief. He won't attack, but he will start babbling a deranged "song" when you speak to him. It sounds like the typical ravings of a madman at first...then the song describes how an innocent man was forced to watch his friends and family be butchered because he refused to get involved in the current guild war. The song suddenly becomes much more chilling when you realise who the song is describing."You can't hide! War will find! YOU CAN'T HIDE! WAR WILL FIND! AHAHAHAHAHAHAHAHAHAHAAAAAAAA!!!"
- Your second visit to Candlekeep in the first game when everyone's been replaced by dopplegangers.
- "DIIIIIIIIIIIIIIIIIIIIE MEAT!"
- Even better, even better, when you get to the end of the catacombs, Gorion shows up and tries to convince you that none of the dopplegangers were real, and instead you just murdered all of your old childhood friends in a bout of insanity. Of course, he turns out to be a doppleganger, too, but it can really mess with your head for a brief moment.
- For a mixture of horror and Tear Jerker, find Captain Brage and right click on him to hear a mixture of insane laughter and broken sobbing.
- Take a closer look at that bandit camp. Apparently they decided to decorate their camp with rotting corpses.
- There's nothing in the game that says this, but you might still wonder if one of the flayed bodies ringing the top of Tazok's tent could be Kivan's wife...especially if he's in your party.
- The cries in the Fear Test in hell in Shadows of Amn.
- The Underdark. An enormous sub-terranean world filled to the brim with beings so dangerous and evil that it can compete with the lower planes.
- The illithid cave. You're captured the instant you enter the cavern and are forced to fight in a arena. You escape and have to fight your way out with every room containing some of the worst creatures in the entire game. And the only way to escape the complex is to slay the Elder Brain. Have fun!
- On top of being one of the most dangerous monsters in the game, Beholders are very scary looking. They're huge, flesh coloured heads with several eye stalks, massive mouths with razor sharp teeths and a huge central eye with a constant Death Glare to boot.
- The wraiths in Throne of Bhaal. These...things exist solely to torment anyone they encounter by reading their minds, taking on the forms of their deceased loved ones, and then reciting all their deepest doubts, fears and failures to them, all the while "reminding" them how said loved one's death was their fault. It's borderline Mind Rape, and is enough to drive Jaheira to near-tears.
- The wraith is particularly brutal with Aerie. It will make her think that her mother has been killed while searching for her and she will believe it for the rest of the game. Talk about trauma.
- Irenicus's lab may become tedious in later playthroughs, but it's chillingly terrifying the first time you go through it. You've just recently escaped after weeks of torture and are now wandering around, no weapons, no armor, no spells, no companions except the equally weakened Imoen, Jaheira and Minsc. You have no idea where the rest of your friends are or what befell them. You have no clue what's going on, where the resident Mad Wizard is or when he'll be back. It's eerily quiet. And every door you open reveals horrors worse than the last. Brrr....
- Yoshimo's description of the Geas, and what happens to those who try to break it.
- In Baldurs Gate II Throne Of Bhaal, Anomen asks Keldorn about one of the battles the older knight was in, clearly expecting a story about his legendary heroism. Keldorn instead tells him, dispassionately and in full detail, about how he and his unit were subjected to horrific atrocities.
- To sum up: First, Keldorn's unit was betrayed to the enemy and decimated in battle. Second, the enemy captured them and stripped everyone naked, living or dead. They then tied each living knight to one of their dead fellow soldiers, and left them all on the battlefield. As they they were Forced to Watch their friends' bodies rot, some of them died of exposure or went insane. Keldorn escaped, saved everyone he could, and then sneaked into the enemy camp and killed everyone who had done this to them. It's a testament to his Heroic Willpower that he's still fighting after all of that.
- We all know that there was no novelization of the games. But if there had been, there's a possibility that the depiction of the spider-infested Cloakwood ruins might have been pretty damned horrifying. If such a novel existed, that is.
- All of Durlag's Tower. It's creepy enough on its own, with its trap-filled halls and powerful monsters. But bit by bit, the tower shows you what Durlag went through, why he built hate into the very stones of that place. All Durlag ever wanted was a home, a family, but it went so very, very wrong.
- The teaser to Baldurs Gate III gives us a view of Baldur's Gate under siege, with dead Flaming Fist soldiers littering the streets. One survivor stumbles exhausted through an alley, preparing for a desperate last stand. Then suddenly he vomits blood, his teeth fall out, and a horrible transformation starts, culminating in four tentacles bursting out of his mouth. Seconds later, a newly born illithid rises into the air. And then a flash of lightning illuminates the clouds, and the sky is full of mind flayers. Then another flash reveals what can only be described as something big. Possibly Ilsensine himself. (The logo◊ seems to suggest it).
- Even worse, this transformation we see is something that normally takes a week to complete, yet the poor soldier is turned in under a minute. Just what is going on?
Nightmare Fuel / Baldur's Gate