Four players, two teams: you and the player across from you against the other two. Everyone gets 13 cards.
Bid how many tricks you think you will take. Your team's bid is the two bids added together. Bid nil if you think you can take none.
Play a card each. You must follow the suit that was led if you can. The highest card of that suit wins the trick, unless someone played a spade: spades beat everything. You cannot lead a spade until one has been played.
Score: make your team's bid for 10 points per trick bid, plus 1 for each extra trick (a bag). Miss it and lose 10 per trick bid. Every ten bags costs 100. A nil is worth 100 either way.
First team to 500 wins.
Sounds covers the card noises, and the slider next to it covers everything. Music plays soft ambient music. Night mode warms the screen for a dark room. Chill mode turns all three on for late nights. Every switch is remembered on this device.