At first a friend's friend showed me Amnesia's official trailer. I was interested in it already back then, but I forgot it for some time. I rarely get excited because of new games nowadays since most of them are just boring. Or I've become a picky little whiner who wants more from a game than neat graphics.
Then I noticed an Amnesia meme in DA made by an artist I'm watching. She managed to make it look both scary and fun at the same time. And then I bumped into the WHAT THE F**K video which was the last thing that made me try the demo. While playing it I was so happy: the first horror game ever I could actually play. My aiming and combat skills - even in games - are just really crappy so sneaking, hiding and running were like a true calling.
After beating the demo I bought the game. When I had played Amnesia I started to look for more info about Frictional Games. Found out they had made other games as well called Penumbras. Bought them right away and haven't regretted.