The Underground
"Description
The Underground is an epic quest mod where you meet an attractive vampire of the opposite sex and go on a long adventure with them which puts you both in perilous situations that brings you together on a romantic, often funny, and very scary quest to save the world. It's called The Underground because it takes place largely underground in caves, caverns, dungeons, etc. Also there is a vampire/daemon bar called The Underground with the entrance in the Balmora sewers (which this mod adds.) It's packed with action, puzzles, traps, complex relationships, comedy, drama, thrills, dark themes, and of course, vampires! While not a "vampire mod" in the strictest sense, because it doesn't require you to be a vampire to play, vampires are the primary characters in the main plotline."
For more details check out:
http://qarl.rpgmods.com/description.html