Game-based learning (GBL) places high demand on educational resources and has been widely practiced in classrooms in many developed countries; however, few studies on GBL and its influencing factors have been conducted in developing countries. To address this research gap, a mixed-methods study was conducted in a state high school in the Amazon region of Colombia with 64 tenth-graders who were learning English as a foreign language to identify the factors that affect learners' learning outcomes when serious games are applied to vocabulary learning, with a specific focus on learning engagement....
