In Codenames, two rival spymasters know the secret identities of 25 agents. Their teammates know the agents only by their "Codenames". 
Compete in two teams to see who can make contact with all their agents first! 
Spymasters can only give one-word clues that can point to multiple words on the board. 
Their teammates try to guess words of the right colour, while avoiding those that belong to the opposing team 
Be careful of the assasin card, if you uncover the assasin, that is game over and the other team wins!