DiamondsĀ is a trick-taking card game in which players collect Diamonds āĀ not cards bearing that suit, mind you, but rather actual "Diamond Crystals" (acrylic crystals) included in the game.
What makes the game ofĀ DiamondsĀ different from other trick-taking card games is that when you cannot follow suit you get a "Suit Action" based on what suit you do play. Suit Actions are also taken by the winner of each trick, as well as at the end of a full Round of play.
Suit Actions will enable players to take Diamond Crystals from the Supply, moving them to their Showroom (where they may score 1 point) or to their Vault (where they will score 2 points). The Vault is a secure area, but the Showroom is vulnerable to theft by the other players.
The deck inĀ DiamondsĀ consists of sixty cards, numbered 1-15 in the standard suits. In each round, the players start with a hand of ten cards. One player leads a card, and everyone else must play one card, following suit if possible. As you play a card, if you cannot follow suit, you immediately get a Suit Action in the suit you did play. The player who played the highest card in the suit that was led wins the trick, and also gets a Suit Action.
The player who won the trick leads a card to start the next trick. After a full Round of ten tricks, whoever has taken the most cards in each suit once again gets a Suit Action. If a player has taken no tricks, that player gets two Diamonds Suit Actions. Players then start a new round.
Whoever has the most points in Diamond Crystals at the end of the game wins!
