What other game allows a pregnant woman to sleep with the wife of a mafia don, fight her way out of said mafia don's casino when she gets caught robbing them blind, then have the prostitutes on the streets of New Reno go on a rampage of revenge when the casino goons gun down one of their number in an attempt to kill the player!
Few games posses the depth of story and game play that is offered within the Fallout series. Especially when coupled with TheBearMan's unofficial expansion that fixes bugs and adds back areas, items, story, and other surprises that were supposed to be in the game originally!