Abstract
In recent years, game engines such as Unity and Unreal Engine, which provide the functions, programs, and materials necessary to create games, have developed. With this development, an environment has been created in which anyone can easily develop games with high efficiency and quality. However, it is difficult to estimate the amount of work to be done and the time required for game production. Therefore, we are developing a system that enables developers with little development experience to grasp and visualize the production required in the planning and production stages. As a result of the evaluation experiment, significant differences were obtained in the ”creation time” and ”difficulty level” of the Gantt chart, which enables the understanding of necessary production items. In addition, good evaluations were also obtained for ”discovery of new development items,” ”comfort of use,” and ”content of questions in the development system.