Faldon. It's a pretty addicting game, but to really enjoy it you need a Citizenship (membership)
Still, as long as you dont try to master EVERY skill, you can easily have fun with this game for a long while. Just make several specialist characters.
It has a good 30-something skills, last time I checked, like Martial Arts, Taming, Fishing, Scribing, Lumberjacking, Carpentry, and several magic classes.
Without citizenship, though, you can only have a max of 600 skill points. Shouldn't be a problem if you make each character specialized. Such as a healing specialist, an elemental specialist, a scribing specialist, etc.
It's a small community, but its really fun. Also isometric.
http://illusorystudios.com/faldon/
EDIT: Hell, I just convinced MYSELF to play again. Haha.