This is the post for Skyrim: Dawnguard

Release Date:
Xbox 360: 06/26/2012

PC/PS3: Unknown,

In Dawnguard you can become a vampire lord, or vampire hunter

Resources:

Official Skyrim Website

Skyrim Dawnguard Walkthrough

Skyrim Dawnguard on Orcz.com Wiki

Official Trailer: (YouTube)

The Elder Scrolls V Skyrim: Dawnguard - Official Trailer - YouTube