Hello,
I have started playing an awesome new game since christmas (new comp yay) called Requiem: Bloodymare.
It has held my complete interest since I have started playing more so than any other game I've tried, and it's free to play!
It is rated Mature though because it is pretty much full of violence, gore, and scary monsters (especially some of the higher level ones!), which might be why I like it so much.
I'm not sure if many people in the d2jsp community play it but I'm sure there will be plenty that decide to try it out if a subforum is created. I know it would be a great addition to the site.

edit: official website if you need it: http://www.playrequiem.com/index.aspx