Mabinogi

Before all you Nexon haters out there go rant about the BBB's rating of Nexon, Mabinogi is the next best thing. Mabinogi takes Celtic mythology and makes the best game Nexon ever made. You start off from the Soul Stream, as you save the world of Erinn from a group called the Fomors. As you progress, however, the game is way more in depth. For example, You can learn any skill in the game(Except race related skills, which is about 2 or 3), but it costs Ability points, which you get every level or saturday. When you reach the age of 20 years old(Everybody ages on saturday), you can rebirth for free(Else it will cost Nexon Cash if you want to do it earlier). The game has pacthes in the form of Generations, or Seasons. Currently the North America server is on Generation 6(4-6 don't have a storyline, but add the continent Iria and Elve and Giant races). The game even has transformations, potion making, cooking, fishing,and instrument playing.

http://www.mabinogi.nexon.net