MMO publisher Aeria Games has announced the launch of the open beta of their latest free-to-play title, Shin Megami Tensei: Imagine Online.

The first MMO in the popular and critically-acclaimed Shin Megami Tensei franchise (including titles such as Persona 4) SMT: Imagine Online features a real-time battle system, character customization and "demon fusing"—the process of combining multiple demons to create new breeds which help the player in "restoring order to a post-apocalyptic Tokyo."

In addition, the game features the usual MMO social features, such as friends lists.

"The game, already highly successful in Japan, proved to be popular amongst English speakers during the closed beta test," said an Aeria Games representative. "For open beta, everyone is invited to play the game for free without download or subscription fees."