VIRBUS is an open-source simulation game developed to teach hospitality and manufacturing business management. It allows virtual companies from different European countries to compete in national and international markets. The game aims to improve students' international business skills through experiential learning of the full business lifecycle. By making strategic decisions in a simulated complex business environment, students develop skills such as problem solving, collaboration, and strategic thinking. The project partners are higher education institutions and companies that intend to incorporate the game into their curricula and training programs.