Although it is originally Basque, the card game of
Mus is very popular in Spain, France and some South American countries.
It is similar somehow to Poker or Blackjack, but with the Spanish deck. Two couples play one against the other, and knowing your partner very well and deceiving the rivals is essential for the victory. It is better played face to face, but it is the same in other games like Poker, and it has not been an obstacle to its success online.