This is a nice lil' extension to the Vampirism mod: Vampirism+
This mod includes:
A new ore known as Bloodrock.
A new wood known as Bloodwood.
A new dimension known as the Vampire Dimension (no suprise there).
A new mob known as the Blood Scientist.
A new biome known as the Vampire Corruption Biome; basically the Vampire Dimension but a biome.
A new music disc (the Monsters Inc theme by Randy Newman). Blood Scientists drop those.
2 new blocks known as blooded basalt (smoothed basalt and redstone) and bleeding obsidian (obsidian in middle and redstone all around).
The thing to light the vampire portal is a cryptic moon (only available through /give commands or creative mode.)
A ranged weapon called the blood gun. They are powered by blood bullets.
Bloody Spaghetti. made with Bloodrock in middle and Gold Ingots all around.
Thats all so far!