The game logic is easy, you will try to get three in a row (vertical, horizontal or diagonal) on the playfield.
To get your marks in this game you have to finish the checkout/score/treble/double shown in the boxes of the playfield. So before you start the game you have to decide the difficult level for the game or individually.

Random checkouts between 81-120. Finish on a double.

Random trebles 1-20.

Random checkouts between 41-80. Finish on a double.

Random scores between 61-120.

Random doubles 1-20 and BULL.

Random scores between 21-60.

Random numbers 1-20.

If you have a Scolia to autotrack the darts you just have to start the game and throw the darts. But you can also play the game manually by pressing the boxes in the gamefield when you hit the target. You can only get 1 mark per throw (three darts)!

If you manage to hit the target with your first or second dart, but would like to aim for a better brick in the game you can continue to throw but if you miss the target you’re aiming for you also lost the opportunity to get the first mark. For example lets say you have selected Scores as your level, and have 60, 80 and 100 as three of the scores in your playfield. If you then hit the Treble 20 with your first dart you can decide to stop and get the mark in the box for the score 60, or continue to aim for 80 or 100 with the rest of the darts. But if you fail and for example hit Single 5 + Single 1 with your remaining dart you will not get a mark at the score 60.