Game-based learning is the attainment of educational objectives through games. This study investigated the effects of game-based learning on students’ motivation and academic achievement in science 9 at Valencia National High School, Valencia City, Bukidnon. It utilized a quasi-experimental research design involving two groups exposed to non-game-based learning and game-based learning. The instrument used were both academic and non-academic assessment. The statistical techniques employed were descriptive statistics and Analysis of Covariance (ANCOVA). Results of the study revealed that after the exposure to GBL students obtained "Satisfactory," while non-GBL obtained a "Did Not Meet Expectation" result, indicating an improved academic achievement after the intervention. Both groups exhibited an overall mean that indicates “moderately motivated.” Further, there was a significant difference in the students' academic achievement and motivation between groups.