If you head over to the official 2Moons site, you can get into the Open Beta for the game. Which is basically saying the game has launched, since I think they are letting you keep your characters when they do officially go live. Also, I think the game will be free to play anyway, and they will use in-game advertising and micro-transactions to fund it all.

The thing to note is that 2Moons is recommended for ages 17 and over. Making it a R-rated, Mature game. I'll have to check it out.