The basic goal of rummy card is to build melds which consist of sets, three or four of a kind of the same rank; or runs, three or more cards in sequence, of the same suit. If a player discards a card, making a run in the discard pile, it may not be taken up without taking all cards below the top cheating playing cards. You can play Rummy with two or more players, It's a popular card game that's fun for all ages.