EuroMillions is a trans-European lotto originally founded by Britain, France and Spain. It then expanded to nine participating countries. In 2004 Ireland, Austria, Switzerland, Belgium, Luxembourg and Portugal joined raising the lotto's profile, and its prize pool, dramatically. The game is also playable by citizens of the Isle of Man, Liechtenstein, Monaco and Andorra. To bet on EuroMillions you select five regular numbers from 1-50 plus two star numbers from 1-12.