In the game of gin rummy, the goal is much like the regular rummy game. In gin rummy, you try to organize your cards into sequences and sets, while keeping the leftover cards to a minimum when the game ends. To do well, you need to understand how to play gin rummy. The game usually involves multiple rounds and it finishes when a player reaches 100 points. It's usually a game for two people, and they use a regular deck of 52 cards without any jokers.