Abstract
Serious Game Jam has been held eight times from 2014 to 2019 to raise awareness of serious games in Japan. In this paper, we describe the lessons learned from the eighth Serious Game Jam (SGJ8) which was held in Dec. 2019 in Tokyo. In SGJ8, number of participants were 25 from three countries, they organized 5 teams and they have developed 5 serious games. We have based on the same process that we have performed in the SGJ7, but we have found several issues to be revised in the future serious game jams. This paper summarizes the lessons learned from our experience of SGJ8.