Set is a simple card card played with a deck of 81 cards. A set is 3 cards that are all the same or all different for the 4 attributes: color, shape, texture, and number. When you see a set, click on the player to claim it, then select the three cards you think are a set. Be careful - you lose a point if you are wrong (but cannot go below 0). There is no computer player in this game because it would be too easy for it to win.