Convergence: the journal of research into new media technologies.
Game and culture: an international journal that promotes innovative theoretical and empirical research about games and culture within interactive media.
JMIR Serious Games. A multidisciplinary journal on gaming and gamification for health education/promotion, teaching and social change
The Library has many article databases which make it easier for you to locate articles on your research topic. Here are just a few examples:
If your topic is not covered by these resources please ask for help.