If you've played Persona 3 or Digital Devil Saga, then you're already familiar with Atlus Games's Shin Megami Tensei line. While the laurels of that line lie in the many single player games, the Shin Megami Tensei series is going into the MMO realm with the new game, Shin Megami Tensei: Imagine.
Imagine is being carried in the US region by Aeria Games, the people behind Shaiya and Dream of Mirror Online, and they've just started their beta test via Filefront. Just simply click on the link and you'll be given a key and a download link to the client. The game will be free to play, and supported by a microtransaction system.
Otherwise, happy demon hunting!
Update: Aeria Games has gotten the launcher back to normal. Double click it and run it to update properly!