When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: Naughty Dog) Just asThe Last of Us 2was crystalizing in the conceptual phase, Uncharted 4: A Thief’s End threatened to derail the entire thing. Last week, February 2,Naughty Dogreleased Grounded 2: Making The Last of Us Part 2, which you can see in full just below. Near the beginning of the documentary, around the six minute mark, game director Neil Druckmann talks about finally getting The Last of Us 2 off the ground in terms of having concept art and story ideas banded around for the sequel. Unfortunately, this was around the same time Uncharted 4 needed “all hands on deck,” according to Druckmann. Lead game designer Emilia Schatz says that Naughty Dog doesn’t make multiple games at once - it works entirely on one game, then moves onto another once it’s wrapped up. Schatz recalls how, when Uncharted 4 was coming “down to the …