I played quite a bit on the QT3 server. I got to a pretty high level. Did a bunch of dungeons and got phat lewt. I am sure there was more to do, but I got bored of it. One thing I never figured out how to kill were those giant crocodiles. I mean I could kill the undead litch king or ghost lord or whatever, but those giant crocks just wiped the floor with me.
I kind of wished they had some more imaginative items. I would have loved an alchemy recipe for night vision or some gear that let you climb unlimited distances (I did have the special climbing gear from some hard to reach dude).
In the end I think I just ran out of interesting things to do. There was no economy other than survival.