There's a sequel to the card game UNO— it's appropriately called DOS.

DOSis a new take on UNOthat uses a similar system of numbered and colored cards, but this time around players have two card piles to choose from for playing cards and win after earning enough points, not by putting down all of their cards. Of course, you're also supposed to call out "DOS" if you have two cards in your hand.

UNOfirst came out in 1971 and has remained mostly untouched, but its premise of matching numbers and colors and screwing over your opponents was ready for a new iteration.

The rules of DOSgo like this:

2-4 players draw cards, whoever has the highest number is the dealer. The dealer then deals everyone seven cards each and takes two cards from the deck and places them face up next to each other (this is the "center row")

The player to the left of the dealer starts the play and can then do several things with their hand and the center row: you can place down a card that matches one of the center row cards' numbers or place down two cards that add up to one of the center row cards' numbers (players can only place cards once on each row).

If you match the color of one of the cards in the center row, you get to place a card face-up in the center row at the end of your turn. If you match the colors of both center row cards, you get to put a card down at the end of your turn andthe other players have to pick up an extra card.

The two special cards are the Wild DOS card (the multi-colored 2) and the Wild # card. The Wild DOS card has a helpful value of 2 and can match the color of a card in center row. The Wild # card has a specific color but can act as any number (1-10).

If you can't place a card, you must draw a card, and if you still can't place a card, you can put any card face up on center row.

Similar to UNO, if you're down to two cards in your hand, you have to call out "DOS." If another player calls "DOS" on you before you do, you have to pick up two cards.

When the player is done with their turn, the next player goes. This continues until someone gets rids of all their cards, and then that person earns points based on the cards in other players' hands. The normal cards are worth their face value, Wild DOS cards are worth 20 points, and Wild # cards are worth 40 points.

The role of dealer moves to the next player, everyone gets dealt new cards and the game keeps going until someone reaches 200 points.

DOSwill be available through Target starting March 4 for $5.99, and will be available at a wider range of retailers in August.