The article substantiates the degree of responsibility of a seaman in the execution of algorithms for activities in a foreign language environment and considers tools of educational activities used to develop the communicative component of these algorithms. The article describes methods of integrating student communicative capabilities into the system of activities of a marine specialist in mastering algorithms for solving typical problems in a foreign language environment using simulators in accordance with the new generation standards and the International Maritime Convention. The need for developing a professional competence inextricably linked with successful labor activities is substantiated. The technology of training a marine engineer able to solve professional tasks through foreign language communication has been developed. The role of business games in modern training simulators is described. The component analysis of business game activities can be used to assess the professional competence development level. The role of subject, social and psychological contexts of a business game using the simulator is revealed, the results of experimental training are presented. They indicate the efficiency of algorithms for solving typical problems in a foreign language environment. The conclusion is made about the business game on the simulator as a system-forming factor of interdisciplinary integration and an important means of development of foundations of professional activities whose technology is regulated by foreign language communication. The standardization and algorithmicization of educational processes contribute to the development of control and self-control and ensure the safety of life at sea in a foreign language environment.