This study examined the effects of interactivity in violent video games on aggression and tested identification as the moderated mediating mechanism. A total of 169 male undergraduate students participated in a 2 media interactivity (enactive mediation vs. observational mediation) × 2 violence (violent vs. nonviolent) experiment. Results supported a moderated mediation model in which the effect of media interactivity on aggressive affect through identification was moderated by violence. When violence was present, interactive play resulted in higher short‐term aggressive affect through higher character identification than when violence was not present. Additionally, an interaction effect between media interactivity and violence was found for automatic self‐concept in which players associated themselves more with the game character's traits than video viewers.