Game design elements and educational game design for rate of reaction topic in high school chemistry subject

Educational digital game is nothing new as it has been implemented in multiple discipline and fields, similarly, its effectiveness is undoubtedly high, however the existing direction of research tend to focus to technical aspect of game development such as requirement engineering, algorithms, and UML processes and neglects the game design aspect of the educational game. This study proposes a novel game design methodology that combines Agile-Extreme Programming software development life cycle with game design aspects by using expert testing as a method of validating the game design output of game prototype. This study uses Computer System Usability Questionnaire (CSUQ) as a method of measuring the game concept as well as a media and subject-matter evaluation questionnaire that measures multiple aspect of game design. The implementation of the proposed methodology is done in three game design steps of ideation, conceptualization, and prototyping. The subject-matter expert review yields a score of 82.2 in term of subject matter correctness and 88.5 in term of question appropriateness, while the media expert review yields a score of 65.7 for software engineering aspect, 65.7 for visual communication aspect, and 73.3 for media design aspect, while the overall CSUQ yields a score of 72.1. The general expert feedbacks on the designed prototype using the proposed methodology are also elaborated thoroughly.