Index Corporation released Persona 3 Social for Mobage-town about a year ago. The social game lets players create their own character in the Persona 3 world and battle shadows with friends. In just a few months after its release, Persona 3 Social had 500,000 members.
Persona 4 is everywhere with an anime series airing in Japan, a PlayStation Vita remake, and an Arc System Works developed fighting game. Soon, Izanagi will be on your smartphone too. Index Corporation announced Persona 4 Social (tentative title) is one of the social games they’re working on.
Index is also working with popular game creator (Index’s words) Keiji Inafune on a social game called The Island of Dr. Momo too. The game was announced earlier as a GREE title and slated for launch this fall.