At the moment there are only two ten pin bowling tutorials so the minimum target is to complete both tutorials –
- Click here for the model used in the tutorial skittle3.blend
- Click here for the file created in the tutorial skittlesTut22.blend
- Click here for the file used at the start of the tutorial skittlesTut22.blend
- Click here for the file created in the tutorial partTwo17.blend
To develop the game, the obvious next step is to mimic the resetting of the pins ready for the second ball. Unfortunately I cannot think of a way to do this using logic bricks, I think you would need reasonably complex Python programming.
There are other improvements that could be made using some of the techniques used in the simple ball game, like a head-up display for the score.
You could try making variations like a skittles game that use nine skittles in a diamond or a lawn bowls game.
Another family of games that use balls are pool and snooker games, they are on my list of things to try.