Decryptr is a wonderfully clever team-based online party game. Two teams have their own set of four secret words. Each round, one team member will be given a unique three numbered code linked to their four words. They need their team to figure out the number sequence without their rivals managing to decrypt the code themselves. To do this, they can use different code words or phrases, trying to be clear enough for their team to understand but also so vague that their opponents will be left clueless.
The browser version of this party game keeps everything clear and concise, making it an easy game to teach. It invokes plenty of discussion and mind-games.