This document provides an outline and summary of topics to be covered in Lecture 4: - Games with multiple Nash equilibria and how evolution may select between equilibria or mixed/pure strategies - Sequential move games and how to escape undesirable outcomes through pre-emptive moves - Analysis of a bluffing game and calculation of the mixed strategy equilibrium where players are indifferent between actions - Assurance games and how mixed strategies can create indifference, though mixed equilibria are not evolutionarily stable - Evolution of strategies in games and how this relates to evolutionarily stable strategies and equilibrium selection