Titan 4Line Jacks or Better Poker Online - Version 1.1 Titan 4-Line Jacks or Better Video Poker Online - download and play. No installation needed.The object of 4-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 four lines of cards. Each line uses a different 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.