The game of bowling is an indoor activity in the United States. You have a lane in front of you and you roll a heavy ball into 10 pins. Bowling can be played for fun with little competition between family and friends (4-6 people per lane), or you can bowl competitively against other people to win a large cash prize! The winner is determined by how many points you have (how many pins you've knocked over) after 10 frames, or sets.