Change of User Behavior by Probability Notices on Random Type Item Providing Systems

Abstract

This research is focused on the random type item providing system called “Gacha ” in the social game of the smartphone application. Gacha includes gambling elements and has caused many problems like too much charge, not available rare items and so on. In order to protect users from these problems, Gacha in online games has become mandatory in 2016 to disclose information such as provision probability. Based on question-naires, this study analyzed whether this disclosed information is expected to have the effect of suppressing ex-cessive charging.