Use a dartboard and at least two players or two teams
Set the target numbers to 15, 16, 17, 18, 19, 20, and the bullseye
Decide the order of play
Each player throws three darts per turn
Aim to hit each target number three times before your opponent does
Count a single, double, and triple hit as one, two, or three marks on that number
Once a number is closed by a player, extra hits on that number can score points if the opponent has not closed it
Score points only on numbers you have closed and your opponent has not
Continue until all target numbers and the bullseye are closed by all players
The player or team with the highest score at the end wins