re Alan Wake: yeah the no death runs are quite easy - just on the second DLC, be careful with the godawful platforming sections(especially the rotating house), if your only slightly out of range you might fall to your doom. I won't lie, I died a couple of times during those platforming sections and almost raged, but if your careful, you should be able to do it no problem.
Oh and save up some flares for the mountain passage section, you get swarmed there quite a lot.