One game that comes to mind for me is the original Last of Us. Came out near the end of PS3’s life time and it became an instant hit. I think what makes it special is the story of course but also very good gameplay moments like the boss in the school gym, and the David fight. The game also had unique enemies like the Clickers and the human enemies were no pushover. And lastly, the ending, goes down as one of the best!
What about you, SW? What game(s) do you consider a masterpiece?