Proposal of method for analyzing story structure and content of role-playing games focusing on quests structure

Abstract

　Recently, it was clarified that structure extraction and automatic generation of the story of the role playing game were possible． However, only the continuous structure in the story was adopted in the analysis． The story structure such as nesting structure and parallel structure should be adopted for the automatic generation of the more complicated and free story development． The story contents also need to be included in the analysis． In this paper, I propose a method to describe and analyze basic narrative structure, such as continuous structure, nested structure, and parallel structure between quests in role-playing games． Using the proposed method, we describe and extract the basic narrative structure in a total of 331 quests, and the narrative contents are also described and extracted in relation to them．The effectiveness of the proposed method is verified by comparing the extracted results with actual stories． As a future problem, it is necessary to verify the objectivity of the proposed method．