Classic Uno is an American shedding standard cards game

Classic Uno is an American shedding-type cards game that is played with a specially printed deck. The general principles of the gameplay put it into the Crazy Eights family of card games.

Skip: next player in sequence misses a turn

- Reverse card: order of play switches directions (clockwise to counterclockwise, or vice versa)

- Draw Two (+2): next player in sequence draws two cards and misses a turn

- Wild card: player determines the next color to be matched (may be used on any turn even if the player has matching color)

- Wild Draw Four(+4 and wild): player determines next color to be matched; next player in sequence draws four cards and misses a turn; caution: may be legally played only if the player has no cards of the current color