If you're not playing and were hoping to check Rusty Hearts out before it ends, you're already out of luck. PWE said that the game is no longer downloadable and won't will be accepting new ZEN deposits. It will remain playable until the 15th for current players, however, and PWE is refunding the past six months' worth of ZEN to use in the company's other titles.
"We would like to thank all the fans who helped bring life to all the characters in Rusty Hearts. Your loyalty, dedication, and countless hours crawling through dungeons is what made it all possible. Rusty Hearts was a unique experience and will be cherished forever," the studio wrote.