The Top Secret Word Game. Win or lose, it's fun to find the clues. Codenames is a fun and challenging social word game with a simple premise. Two rival spymasters know the secret identities of 25 agents. Their teammates only know the agents by their codenames. The teams compete to be the first to contact all their agents. Spymasters give one-word clues that can refer to multiple words on the board. Their teammates try to guess the words of the correct color while avoiding those of the opposing team. Everyone wants to steer clear of the assassin.