Oh gods, I remember those demon doors, there was one where you walk down this pretty path with lantens an trees and enter a fairytale cottage at the end, except the moment you walk thrugh th door it turns into a dark disturbed world were the cottage is a burnt out husk and the lanterns and trees are replaced with iron maidens and caes with human remains. Freaked me the fuck out the first time...Witty Name Here said:Welcome to the forums, by the way! Hope you enjoy being a member of the Escapist community!
Anyways, for me it would have to be when you run into the "crawler" for the first time in Fable 3. The game was all upbeat and fun, but then it starts going into plain C'thulhu territory. There were also certain "Demon Doors" in Fable 2 that were plain horrifying. Like the room full of an army of statues.
Also anything in Fable 2 or 3 involving chesty. If you've played it you'll know.
Anyway what I thought of first was Mass Effect 2 when you see people being liquified into grey paste.