Reuben Klamer (June 20, 1922 – September 14, 2021) was an American designer, developer, inventor, entrepreneur, and sales and marketing executive, best known for creating and designing the modern version of classic Milton Bradley (now Hasbro) board game The Game of Life. The Game of Life was marketed in 59 countries and translated in 26 languages. It is estimated that 70 million copies have been sold, and it is the second most popular board game only to Monopoly.