UNO is a card game developed by Merle Robbins in 1971. He sold the rights to the game for $50,000 to a company that was bought out by Mattel in 1992.

Over the years, it's grown to become one of the most recognizable card games. There are now hundreds of themed variations of the game based on anything from football to movies, some with slightly different rules and special cards.

Uno can be played with 2, 3, or 4 players using 108 cards. UNO is easy enough for kids aged 5 and above to play. Since Uno is simple and fun, it is perfect for players of all ages, making it an ideal choice for family gatherings and get - togethers with friends.