You play Klaverjassen with 4 people strict. The players on each others opposites are team-mates. This means North & South are allied and so are East and West. You are South, the other 3 players are controlled by the computer. You play this card game with 32 cards. (7-ace) You win by gathering more points than the other team.
You can find all the instructions you need inside the game. Go to Help in the main menu.