Do computer simulation games display emergent behavior? Are they models of complex systems or ‘life’ systems? This paper aims to explore and investigate how games studies can use complexity models and emergent behavior to critical analyzes the computer simulation game. (God Games, Real-Time Strategy Games, and City Building Genre) The developments in and from the natural sciences (Complexity, Emergence, Self-Organization, Non-Linear Dynamic Systems) are important intellectual tools that can aid in the development of this discipline. Computer simulation games have a similar strategy to games like Go or Chess; even though they may have fixed rules they can display unpredictable patterns of play (emergent behavior). This approach is in contrast to current models that are being deployed within the field of games