Coup

Coup is a game about influencing the powerful members of court to do your bidding. Assassins, Captains, Ambassadors... whatever it takes to take down your enemies. However, to protect your own interests, you keep your influence secret. Instead, you constantly lie to your opponents about what kind of influence you have, and your opponents have to decide whether or not they believe you. If you are caught in a lie, you lose influence, and the game ends for you once your influence is gone. But if they decide you must be telling the truth, you get to reap the benefits.

Coup is a light lying game that plays in 20 minutes, but I seldom play it just once. Highly recommended!