Didn't get into the Age of Conan early start event? Well here's something for you to mess about with over the weekend instead. Gravity Interactive's horror-MMO Requiem: Bloodymare couldn't have picked a better time to go into open beta. Right now you can head over to the website, register an account, download the client, and there you are, fighting evil in a rather unique little setting.
I've played the game a bit myself, and while there are points where it feels a bit like your standard Korean MMO given a fresh coat of paint, the game mechanics are actually rather entertaining. The only real problem I have with it is that it is hard to maintain an atmosphere of horror after you've killed the same monster 20 times, but it definitely has a few moments. Hit up the link below to get things started!
Requiem: Bloodymare Official Site [Gravity Interactive = Thanks Andthenjaredsaid!]