This course deals with strategically interdependent decision-making, where the outcome of each agent's actions depends on the actions of other participating agents. Game Theory provides the main approaches, concepts, and tools to understand these kinds of situations, as well as to optimally solve competitive and conflict scenarios in order to make the best strategic decisions. The course introduces and develops some basic ideas of game theory through the use of applications and practical case studies. It also addresses the main equilibrium concepts in different informational settings and evaluates their potential economic applications.