Amnesia: A Machine For Pigs Could’ve Been Much Harder. In a lengthy and fascinating post-mortem, designer Peter Howell goes over the game’s design process, noting many areas where developers The Chinese Room differed from series creators Frictional Games It’s a great read, check it out.
http://www.gamasutra.com/view/feature/218372/postmortem_the_chinese_rooms_.php?page=7
