This module gives a comprehensive overview of the modelling of strategic behaviour in modern microeconomics, building on the foundations laid in Intermediate Microeconomics. It will familiarise students with the central concepts in game theory, covering choice in strategic situations under different informational environments, including asymmetric information. The module provides ample examples and applications for the theories developed. Throughout the module a focus is placed on evaluating market outcomes with strategic behaviour with respect to their social desirability and on possible policies to improve upon the market outcome. Summarising, students will learn to model strategic behaviour using games, how to best play games and evaluate the design of games.