Get rid of all your cards as quickly as possible. The one left with 0 cards wins.
It's tactical and requires a bit of luck. A game lasts between 2-5 minutes.

Ace is the lowest - then 2, 3 etc. J, Q, K = King is the highest.
Clear the deck: with a 10 or 4 cards of the same rank.
Start by placing your highest card in the middle and work your way down from there.
You'll figure it out quickly. Make some legendary games.

Win more card backs and backgrounds with bonus. After you have won a certain number of times.

Learn it here so you can play it with real cards against friends and family.

It's so much fun. Up to 4 players, although I've only made it for 2 players here.