The launch of DOS marks the first time in nearly 50 years that UNO has released a brand new game.

By Nora Horvath
Updated February 13, 2018
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DOS Game
Credit: Mattel

Mattel is expanding on the famous UNO game for the first time in 50 years with the appropriately titled DOS: A game that's basically UNO, but with math. Though that means it won't thrill over the youngest members of your family as the original does, parents and older children will appreciate the cheeky, in-on-the joke game that touts itself as "The World's #2 Card Game!" *Fake statistic

The game objective is similar to UNO, with every player aiming to get rid of their cards first. At the start of DUO, each player is dealt seven cards. To play a card, they must match the card in the center row with a card of the same value. If the color also matches the center card, the player can also put down a bonus card. But this is when the new game has a special twist that sets it apart from the original: In DUO players can also use math to their advantage, playing two cards in the center if their values combine to equal the value of the center card. For example, if the center card was an 8, you could play an 8, a 4 and 4, a 3 and 5, and so on.

Like UNO, there are also a few of wild cards in DOS. The Wild DOS card has a value of 2 and can match any color, and the Wild # card has a set color, but can represent any value. And of course, when players have only two cards left they must remember to yell out “DOS!”

“Like UNO, DOS is a universal card game that transcends languages, cultures and ages through a uniquely simple, and inclusive, design,” said a statement from Mattel. “DOS is a perfect complement to UNO and provides a new challenge for fans and friends.”

DOS will be available exclusively at Target beginning in March, and will be available everywhere this August.