Abstract
How was the game industry formed? And how have the changes in game hardware and the emergence of smartphones impacted the game industry? In this preliminary study, we present the results of our analysis of the game industry in Japan, including the timing of its establishment, the transition of major players, and the trends of market entry and exit, by combining the RCGS collection constructed by the Game Research Center of Ritsumeikan University and the firm database, with which Hitotsubashi University collaborates.