I agree. The stuff about the games being "scary"--now that's not really true. It's tense, but not scary in the usual sense.
I can't help but wonder, is Scott puts so many little details into the games that reveal the backstory and all of that, then WTF was left unfinished that is going into the 4th game?!
It's probably going to be some pulled-out-of-your-butt-because-an-army-of-fangirls/boys-begged-for-it-so-much game.