NoNewTaleToTell: Out of curiosity have you played the Penumbra games? To me they're (or at least the first one is) just a tad better than Amnesia (just because the narrative is better and how it plays into the atmosphere) though they're a bit more rough around the edges.
Ixamyakxim: I have not - I've only just gotten into this genre (exploration / puzzle / horror I suppose?). I'll have to check it out; I like the sound of a slightly stronger narrative. I liked the piecemeal delivery of Amnesia (sort of like System Shock 2 but pared down further - in Amnesia there both is and isn't really an overall story it's more snippets and flashbacks that paint a picture) but I think I might like trying something that packs a bit more "ooomph." Oddly enough a similar game I played recently also did the same thing (more scene setting and picture painting than overarching storyline). That was Miasmata. I knew what I needed to know and the environment filled in some gaps but I was left largely to my own devices.
Well, in my opinion Penumbra's overall narrative and atmosphere is stronger, especially in the end-game. To me, Amnesia got a bit goofy right at the very end, while Penumbra's end game area is...well... let's just say it packs a punch haha. Still, the narrative is used sort of the same way in both (the first) Penumbra and Amnesia (you'll find a vague note about something/somebody/etc and then find it later in the game, and a lot of symbolism and things left to the imagination etc etc) rather than any heavy//forced on you story. I just feel like Penumbra (the first one) is better written. For the "major difference" between the two (series), Penumbra is more depressingly nihilistic and covers a lot of philosophical ground whereas Amnesia is lot more straight forward and traditional horror oriented.
Both are great game(s) and deserve all the acclaim they get.