This paper conceptualizes "Gacha", a lottery mechanism to win virtual items, which was developed in Japan, as game of chance elements in mobile games which is used for monetization in freemium business models. Based on the concept of Gacha, referring to previous studies, this paper also analyzes...

This paper offers a look at the Japanese mobile free to play market with a focus on "Gacha", a game of luck mechanism used in many Japanese games. The paper tries to explain about the concept of Gacha, its different forms, some known regulation issues and briefly looks at player and...