rummy rules learn rummy game rules online in easy stepshow to play rummy. press the play button on the startup screen. the rummy startup screen. select number of players: 2 player = you vs a computer ai player. 3 player = you vs 2 computer ai players 4 player = you vs 3 computer ai players. select game mode in the mode menu. rummy rules. the rummy card game is played by building series of cards