In the digital age, where programming prowess is increasingly crucial, the enhancement of Computational Thinking (CT) skills becomes essential. This study ventures into the scarcely explored domain of leveraging game-based learning (GBL) within virtual reality (VR) settings to bolster CT skills. Specifically, it introduces "CT Saber," a VR game inspired by the popular "Beat Saber," tailored to cultivate CT competencies. Employing a Design and Development Research (DDR) methodology across five stages—analysis, design, development, implementation, and evaluation—this investigation assessed the game's impact on 37 computer science students (25 male, 12 female) aged 21-24. A quasi-experimental design with pretest-posttest evaluation was utilized, revealing significant enhancements in CT skills post-intervention (Z = -4.496, p < 0.05), as analyzed through Wilcoxon Signed-Rank tests. The findings underscore the VR game's efficacy in CT skill development, suggesting a promising direction for integrating VR technologies in programming education.