Dungeons and Dragons online is bringing out a ravenloft expansion .
Get out your stakes and Garlic! this looks like fun.
if you have not yet played DDO now would be a good time to start and if you have played before, you should try it again.
Dungeons and dragons online is free to play however it is best to purchase the expansions as they greatly expand the game.
More information found below.
http://store.turbine.com/store?Action=custom&CustomPageEnv=DESIGN&Locale=en_US&SiteID=turbine&pbPage=ddo-ravenloft