Meta AI is one of main three game AIs such as Character AI, Navigation AI, and Meta AI. A character AI means a character’s brain to make a decision, and Navigation AI is a recognition system for an environment of a game. Meta AI is AI to control a whole game dynamically. A technical term “Meta AI” began to be used since 2005. But the original idea of Meta AI can be seen in the game development in 80’s, and it has been developed until now. Furthermore, a concept of AI Director was born in 2008. AI Director is similar to Meta AI, and they are used in almost same meaning, but different. The paper is the first attempt to research a history of concept formation of both of them, and their difference of fields and roles become clearly defined. This study can become a base of research in Meta AI and AI Director for the future by providing their history and past circumstances of developments and researches.

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Players start to play digital games when they are interested in them and when the proper environment of playing exists. These players usually interrupt their session of play when they lose motivation. We conducted qualitative and quantitative surveys to clarify the reasons for dropping out a continuous session of play. The results of our surveys suggested that the reasons for dropping out were not related to the motivation players had when they started playing. The quantitative survey’s results showed that the most common reasons for dropping out were: “absence” and “change in lifestyle”. Which are not related to the game content itself. In addition, it suggested that an effective method to prevent dropping out from continuous play was personal adjustment of difficulty.

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[in Japanese]

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The spread of the COVID-19 has seriously affected the activities of academic societies around the world. Conferences and workshops were forced to be cancelled across the board and shifted to online meetings. The activities of DiGRA Japan were also directly affected by the outbreak. The annual conference was canceled, and all the meetings of the board of directors and each committee were forced to go online. This paper reports the progress of the online initiatives of DiGRA Japan, which is experiencing such major changes, and discusses the changes in the activities due to the online transition.

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