Citadels is a non-collectable card game for 2-8 players where the skills of bluffing, deduction, and city building are necessary to win.
The premise of the game is that you are a medieval ruler trying to complete your city before your opponents can build theirs.
There are 2 types of cards: Character cards and District cards. Each character card has a number on the top left hand corner which indicates the order in which the players will be able to perform their action.
To help in your endeavor, you secretly take on the roles of certain character cards such as the king, bishop, and assassin each round. The basic game allows you to take on any one of the 8 roles, each with their powers.
The District cards are further divided into 5 different colors indicated on the lower left hand corner and the amount of gold necessary to bring that card in to play on the top left hand corner.
The game ends in the round with the first player to bring 8 District cards into play. All but one color provides a boost in income depending on the character role that player has taken.