French Xbox achievement list site, Succesfull, has uploaded all the achievements in Silent Hill HD and Downpour. I didn’t look at Downpour’s list in fear of spoilers but I just want to point out that I love the Sailor Moon reference in Silent Hill 3’s “Princess Heart” costume achievement: “Where’s Luna?”

Silent Hill HD Collection
http://www.succesfull.fr/index.php?option=com_succesfull&Itemid=6&l=en&JeuID=1530

Silent Hill Downpour
http://www.succesfull.fr/index.php?option=com_succesfull&Itemid=6&l=en&JeuID=1529

Source (succesfull.fr) Thanks to Merzitar for bringing this to my attention on the SHHS FB wall!