Punishing: Gray Raven
I believe PGR is an excellent game not only because it has amazing gameplay and catchy music, but also because it has many interesting discussions into the relationship between humans and machines. For instance, how do we define the difference between humans and machines when more and more humans are implanting external cyberwares to their bodies in such a futuristic world? Moreover, if machines attain self-awareness someday, how should we treat them? As AI has started another wave of scientific progress, I believe discussions alike can have serious implications.