When categorizing undead, vampires are hunters, creatures of stealth that prey on the living. They hunger for blood. It’s not that they need it to live, but starved of it, makes blending in with your prey much harder. Some try not to hunt the living, but after a while they find their hideous appearance unbearable, as do others, so they look to finding the nectar they need to get back to what they looked like when they were of the living.
One of the most powerful vampire organizations is the Blood Cults of Kezgihr. Following the doctrines of the vampire demi-god Kezgihr, they have cells set-up in key areas across Midrêth.