We always market our games as much as we can and before the release they have been 100% spoiled. We (with assistance) have sent out the game to LOTS of places, hopefully all your favorite magazines, sites, blogs and what not will post gameplay, previews, screens, articles and eventually reviews and full playthroughs, in fact they have been a bit slow so far as they have had the opportunity to begin with it most of the week. The reason why you see Let's players posting material first is because they have been faster at producing content using the review build.
I know and understand the frustration and that you get caught in the middle when we try to make sure people know about the game and you try to avoid knowing about it. I mean only last weekend I talked to my dear old dad and without any warning he spoiled how the F1 race in SPA ended... I was about to watch it as soon as we had ended the conversation. I only anticipated the race for two weeks, so yes, can understand the frustration if you wait 1.5 years.
When you are here on the forum it feels like everyone knows about the game, but unfortunately this is not the case. You do have to do everything you can to make sure at least some people on the big and wide Internet knows about it. It is not possible to only do a game, you have to let people know about it as well. This is one of our main points when asked for advice on what is important when you try to make it as a game developer!
As a small appreciation that you will please bare with us and endure the pain until the release: The first 10 to send me a PM here on the forum gets an activation key for the final game?
I don't think generating awareness through Lets Players is the problem, it's the timing of it. I think alot of us would have prefered an official trailer like the original Amnesia had. I understand the need to market the game and Youtube seems to be a great way, especially for small developers, but couldn't you have waited until release? > .<
And I just want to apologize if it seems we're acting like spoilt brats, but Amnesia is a cult classic, and you know how crazy cults can be