Complex sentence: Casinos that do not accept players residing in the USA usually do not offer this type of bonus, but new gaming products like mobile casino games, which are primarily for non-USA players, do come with promotions of this sort in order to introduce them to gamblers.
Split into simpler sentences: Casinos that do not accept players residing in the USA usually do not offer this type of bonus. But new gaming products like'mobile casino games', which are primarily for non-USA players, do come with promotions of this sort in order to introduce them to gamblers.