Ages 12+. 3+ players. Life is unpredictable — sometimes its hard to tell the difference between truth and lies. Here is your chance to practice! In You Are a Liar players take turns being the reader and guesser. The guesser has to determine who is lying in the stories being told by the readers. There is always at least one liar in the group. Guess the most lies and win the game! Knowledge of required.