This game is a little difficult to explain, but I'll give it a go. This game can be played with any number of participants.
All participants start with zero marks.
Once you acquire five marks, you are eliminated from the game. Everyone first corks to determine the order of play. The person going first has an 'open' board and can aim at any target they want to. Targets are considered any inclosed area. So everything within the scoring area of a dartboard are valid targets.