Uncharted 4 is the first game my wife and I really sat down and played together and it was so, so much fun. I showed her the trailer for The Lost Legacy and she was instantly intrigued by the Chloe/Nadine setup and the setting in general.
This is, also, the first game that I have pre-ordered since the Legend of Zelda … Oracle of Ages. That should be a clue to my excitement level.