Scientific Games Corporation today announced that its wholly owned subsidiary, Scientific Games International, Inc. , has commenced an offer to exchange up to $350.0 million in aggregate principal amount of 6.625% Senior Subordinated Notes due 2021, and related guarantees, which have been registered under the Securities Act of 1933, as amended , for an equal aggregate principal amount of its outstanding 6.625% Senior Subordinated Notes due 2021, and related guarantees, which were issued in a private placement and up to $2,200.0 million in aggregate principal amount of 10.000% Senior Unsecured Notes due 2022, and related guarantees, which have been registered under the Securities Act of 1933, as amended , for an equal aggregate principal amount of its outstanding 10.000% Senior Unsecured Notes due 2022, and related guarantees, which were issued in a private placement .