Business simulation games (BSG) offer a unique opportunity to provide students with hands-on experience in a simulated business environment. This study aims to explore the effectiveness of BSG in promoting entrepreneurial intentions and competencies among undergraduate students. The study was conducted with 48 students, who participated in BSG as part of their entrepreneurship education (EE). The study used a quasi-experiment to measure changes in students' cognitive and non-cognitive entrepreneurial competencies, as well as their entrepreneurial intentions. The results show that participation in the BSG significantly improved students' cognitive and non-cognitive entrepreneurial competencies, as well as their intention to start a new business. The study concludes that BSG can be an effective teaching strategy for promoting EE and developing entrepreneurial competencies among undergraduate students. However, further research with larger sample sizes and diverse populations is needed to confirm these findings and explore how combining BSG with other teaching methods or interventions can enhance the development of entrepreneurial competencies and intentions.