In this chapter, we provide a brief review of the research investigating the connection between playing violent video games and aggression, summarizing key approaches and findings from survey research and experimental methodology. We trace through some of the main features of the debate surrounding the topic, present the grounds on which we arrive at our own interpretive position, and make some suggestions for future research. We find that effects are often contingent on (or made stronger or weaker by) features of games themselves and how they are played as well as differences that different users bring to the gaming experience. On balance, we make a case for the interpretation that playing violent video games does, indeed, contribute a small but meaningful influence on aggression.