Improving User Interface Design of Mobile Audio Games Based on Accessibility Recommendations and Play Log Analysis

Audio games are computer games that can be played without looking at a screen by conveying the information to the screen through acoustic feedback. Mobile audio games are played on smartphones by people with visual impairment. To improve accessibility, many studies have proposed improvements to the user interface (UI) of such games; however, few have analyzed player logs to understand how players control the UI. In this study, we investigated improvements to the UI for smart device operation with vision block by analyzing player behavior logs of a mobile audio game. The analysis of a player’s behavior logs and utterances during the game revealed that there were unintended behaviors and misunderstandings of the screen structure. This suggests the need for the inclusion of voice navigation to clearly describe the screen structure of the game, such as elements and their arrangement, as well as voice advice when wrong operations are executed in the interface.