Int. J. Mobile Learning and Organisation, Vol. 11, No. 2, 2017 131 Copyright © 2017 Inderscience Enterprises Ltd. Satisfaction of high school students with a mobile game-based English learning system Chia-Hui Tsai Department of Sport and Health Promotion, TransWorld University, 1221 Zhennan Rd., Douliu City, Yunlin County 64063, Taiwan Email: nicole-tsai@twu.edu.tw Ching-Hsue Cheng* Department of Information Management, National Yunlin University of Science & Technology, 123 University Rd., Section 3, Douliu, Yunlin 640, Taiwan Email: chcheng@yuntech.edu.tw *Corresponding author Duen-Yian Yeh Department of Information and Electronic Commerce Management, TransWorld University, 1221 Zhennan Rd., Douliu City, Yunlin County 64063, Taiwan Email: yeh@twu.edu.tw Shih-Yun Lin Department of Information Management, National Yunlin University of Science & Technology, 123 University Rd., Section 3, Douliu, Yunlin 640, Taiwan Email: shihyun74@gmail.com Abstract: This study investigated the satisfaction of high school students with a mobile game-based English learning system. The system, called the Happy English Learning System (HELS), integrates learning material into a game- based context and was constructed and installed on mobile devices to conduct an experiment over a period of eight weeks. The experimental sample comprised 38 students. Through statistical analysis, the results confirmed the merits of a mobile game-based approach for high school students learning English. The findings included the following: (1) the adoption of a familiar, but challenging game design is a critical technical factor; (2) the students that were more interested in learning English were more satisfied with this approach; (3) regardless to what extent the students were interested in playing games or enjoyed playing the HELS, they acknowledged satisfaction with the system and the learning process; and (4) the more time the students