Test your code-cracking prowess with Mastermind, the challenging game of logic and deduction. Can you crack the code in 10 moves or less? Can you create a code than can't be cracked? With more than 55 million units sold, Mastermind is a great strategy game... and one of the world's most popular games ever. It's easy to learn and fast to play, and with more than 2,000 possible codes it's different every time.