Уно is a popular card game that is played with a specially printed deck. The game is designed for 2 to 10 players and involves matching cards by color or number. The objective is to be the first player to get rid of all your cards. Players take turns drawing cards and playing them, while also using special action cards to change the game dynamics. The game was created in 1971 by Merle Robbins and has since become a family favorite worldwide. It is known for its simple rules and engaging gameplay, making it suitable for players of all ages. Hasbro currently owns the game, which has inspired various themed editions and digital versions.