If you have a soft spot for Choose Your Own Adventure stories but wish they were set in your favorite video game universes... well, you'd better clear your schedule. Many A True Nerd has turned Bethesda's Fallout: New Vegas into an interactive video (a Choose Your Own Apocalypse, as it's called) that you play solely through YouTube. As you might imagine, it boils down the action role-playing game's experience into simple this-or-that choices -- the route you take and the people you befriend determine whether or not you'll make it to New Vegas in one piece.