 The primary role of the app is to read out the moderator script, relieving the need for one of the players to take this impartial role, as required in Ultimate Werewolf.Like Werewolf, a number of extension packs exist for One Night Ultimate Werewolf.One Night Ultimate Daybreak, One Night Ultimate Vampire and two bonus packs comprise additional character roles that can be used instead of or in combination with the roles from One Night Ultimate Werewolf.