EUO, the tile-based, somewhat Ultima-inspired MMORPG, recently added a new feature: the option of playing as a vampire:

Spells:
vampyric drain – drains the life out of a target slowly and kills it and regens your HP, and also feeds you – 10 min cooloff
glamour – charm any humanoid
graveyard healing – can dig up a grave mound tile (or any tile south of a gravestone or cross) to sleep in it and restore HP very quickly
bat form – can polymorph into bat and fly

and one of, depending which coven you join
bloodlust – deal an extra 20% dmg for 10 seconds, 10 min CO
preservation – reduce damage taken by 20% for 10 seconds, 10 min CO

perks/feats
– all attacks are vampyric in the same manner as vamp weapons / black drag pud etc
– you take massive damage in sunlight! 3% per second
– you are undead, so are immune to poison, drown, choke, disease, lycan, etc
– mani and vas mani damage you! you cannot heal this way
– unlike skeletuns, you do get hungry but can only be sated by your vampyric drain ability
– normal food does not satisfy hunger (but gives bonuses still)
– wearing &/or eq silver will be painful

And, fair warning:

Once you convert to a vampire no amount of gp, begging or even US dollars will get you converted back!

The EUO team suggest a minimum experience level of 70 for all those who want to give a vampire a (permanent) try, but this is evidently not a hard limit, and the option is open to low-level players as well. There is a prerequisite quest path, however.