The goal of Projective Set it to make "sets", which are groups of at least three cards for which the selected cards contain 0, 2, 4, or 6 of each color. Click cards to select or deselect them. If the selected make a set, they will be replaced by new cards. 7 cards are placed out at a time, and there is always at least one set that can be made from any group of seven cards. (this is not guaranteed for fewer than seven cards) If you are stuck, you can click the "Find Set" button to have the computer highlight a set. The set will remain highlighted on the table because cards are only moves to the discard pile after a player clicks on a card.