Fallout: New Vegas social perks add a lot of interesting dialogue options to the game, including some lines of dialogue that shed light on some of the series mysteries. More so than any of Bethesdas Fallout games, New Vegas feels like a direct sequel to the first two games, since it is steeped in lore about factions and even characters from Fallout 1 and 2, like the NCR. It also explores a mysterious character set up in the original Fallout.