Try "Getting a Girlfriend and a Real Circle of Friends : Offline"
Great experience overall, the level grind is probably the slowest I've ever seen, but the graphics are so real its mind blowing.
Fully voiced dialogue and a choice system like no other make it impossible to not get immersed. There's also a class system that allows you to not get "stuck" with 1 single class, you can basically get any skill you want on one character, which makes up for the fact that you can only play one character and they only have the one realm.
The player base is the largest in the world though, lot's of people play this and plus there are no monthly fees!
Try it out and tell the other ppl here how you like it!