Well I recently discovered that RF Online is being shutdown because Codemasters can't agree with the Korean developers on a contract lol. Out of all the Korean FTP MMo's I liked this one the best, in fact I liked it more than PSU. It was a fun game while it lasted. The PVP battles were always fun and full of people. You can check out the game info and read the news at http://www.rf-onlinegame.com/
It sucks seeing a decent game get shut down because of bs with asian developers. If Sega doesn't wise up we may also see a shut down of PSU for similar reasons.