Typically a team based turn style game. Typically there are two teams with each team consisting of two players. You will set your cups up into a triangle formation at each end of the table. Most people play with 10 cups making a triangle of 4-3-2-1. You stand behind the table and shoot a ping-pong ball at the opposing teams cups, each player on the team gets one shot per turn. If you make it in the opposing teams cup they have to drink the beer in it. Every house or location has a different set of rules to play by some usual ones are:

Bounce shot = 2 cups, but the other team can defend there cups and swat the ball.

If both teammates make a cup = balls back they can shoot again.

Two re-racks per game = a team can choose a different alignment of the cups twice in a game.