PurposeThis is a step-by-step guide for teaching Ethics and Ethical Leadership utilizing the Harvard Everest Leadership and Teams Simulation, V.3. The suggested approach is focused on facilitating a discussion and coaching students to recognize and solve problems by applying moral theory explicitly and deliberately. Applying this approach can also help them develop a habit of analyzing one’s own and others' behavior using ethical lenses and principles of authentic leadership. It offers practical debrief steps and specific discussion questions that can be used as a standalone resource or alongside the Harvard teaching note accompanying the simulation.Design/methodology/approachThis innovative approach enables teaching and coaching students on the ethical aspects of their leadership and decision-making based on this hands-on experience with the Harvard Everest Leadership and Teams Simulation. This approach enriches the original HBR teaching suggestions by enabling students to recognize moral dilemmas, confront typical rationalizations and practice ethical actions and decision-making in real time.FindingsIn-class discussion and student reflection assignments provide evidence of the method's effectiveness in translating values into impactful insights and enhanced likelihood of ethical behaviors in real-life scenarios. Students’ end-of-class feedback and course evaluations often cite the benefits of using the Everest simulation as a backdrop for raising self-awareness and practicing ethical decision-making.Practical implicationsThe approach discussed in the paper can serve as a flexible framework for analyzing and debriefing the HBR Everest simulation and other simulations, “survival scenario” exercises and activities designed to teach and facilitate practicing ethical leadership, authentic leadership and ethical decision making. It is adaptable and can be effectively applied across various disciplines centered around ethical leadership, teamwork, communication and decision-making in higher education and business.Originality/valueHarvard Everest Leadership and Teams Simulation is among the most popular ones in business education and is used by teachers worldwide (Roberto & Edmondson, 2017). While a comprehensive teaching note on communication and group dynamics is available through Harvard Business Publishing, it still needs to address the ethical issues students face during the simulation. This paper provides a roadmap for instructors who want to improve the student experience with ethical decision-making and ethical leadership.