Europa 50 line Jacks or Better Video Poker Online - download and play. No installation needed. The object of 50-Line Jacks or Better is to obtain a five-card poker hand that contains a winning combination. It differs from original Jacks or Better, since it has fifty lines of cards. Each line uses its own deck of cards. Each line is treated as a separate hand for the determination of any wins. The better your hand, the bigger the payout. You choose how many and which of your cards are to be replaced. You may replace your cards only once. After each round, used cards are returned to the decks and the decks are shuffled.