Alchemists can make sunscreen that allows vampires to dodge the ill effects of the sun, and an Elixir which will turn a Sim into a Vampire. Perhaps the biggest improvements for them are their new options in the daylight. Vampires get a few new social interactions with Supernatural as well. However, they do now have their own Lifetime Wish (Turn the Town) and their fangs can be customized in Create-a-Sim.

Vampires don't gain hidden skill levels as fairies, witches, and werewolves do. Simmers who purchase The Sims 3 Supernatural will also get vampires, which are in a slightly improved state. The Sims 3 Supernatural: Vampire Improvements There is a lot to learn about the new Vampire life state, so I will try to show you as much as I can. They are the Supernatural Creature of the Late Night Expansion like the mummies of World Adventures and the Simbots of Ambitions. I personally find them to be great additions to the game. Some people have said that Vampires are one of those features that you want to turn off but can't, as the Story Progression will automatically create Vampires in any Neighbourhood. Vampires were first introduced into the game through The Sims 3 Late Night Expansion. The Sims 3: Vampire Vampires in the Supernatural and Late Night Expansions By Thomas Hickman (aka samoht04)

Sims 3 vampire story