In Citadels, players take on new roles each round to represent the characters they come across, mine gold, and erect buildings (blocks). The game ends at the end of the round in which the player builds their seventh (or eighth) building. The players then add up their points and the player with the most points wins. Players start with several building cards in hand; buildings come in five colors: purple buildings usually have a special ability, while buildings of other colors give an advantage when you play certain characters. At the beginning of each round, the player who was king in the previous round randomly discards one of the eight character cards, chooses one, then passes the cards to the next player, and so on, until each player secretly chooses a character. Each character has a special ability, and the usefulness of any character depends on your situation and that of your opponents. The characters then perform their actions in numerical order: the assassin destroys another character during the round, the Thief steals all the gold from another character, the Wizard trades building cards with another player, On their turn, the player earns two or more gold pieces (or draws two building cards and then discards one), then optionally builds one building (or up to three if an Builder is playing this round). Districts cost gold equal to the number of coins depicted on them, and each building is worth the same number of points at the end of the game. In addition to building points, at the end of the game, the player receives bonus points for having eight buildings or buildings of all colors.