Codenames

Two teams, the red and the blue team, try to guess the identity of their own spies.  Twenty five cards are laid out on the table.  Each card has the codename for an agent. Some of these will be red spies, some blue, some will be innocent bystanders and one will be the assassin. Each team's spymaster gives the team a single word clue.  They then have to choose which spy or spies' codename this clue relates to.  However should they choose the wrong one, they help the opponents.  Should they accidentally choose the assassin, it's game over for them.

Each game takes 15 -30 minutes.

Number one party game on Boardgame Geek, the website for avid games players.  Over 5 million copies sold.

2 - 8 players ( ideally at least 4)

Age suitability: 10+