Whether designed to entertain or to achieve more "serious" purposes, games, virtual reality, augmented reality, and mixed reality have the potential to impact players' beliefs, knowledge, attitudes, emotions, cognitive abilities, physical and mental health, and behavior. Meaningful Play is a conference about theory, research, and game design innovations, principles and practices. Meaningful Play brings scholars and industry professionals together to understand and improve upon games to entertain, inform, educate, and persuade in meaningful ways. The conference will include thought-provoking keynotes from leaders in academia and industry, peer-reviewed paper presentations, panel sessions (including academic and industry discussions), innovative workshops, roundtable discussions, and exhibitions of games and prototypes.