Vampire: The Masquerade- Bloodlines. Troika Games. 2004. Video Games
VTMB is a narrative-driven RPG in which the player takes control of a newly created vampire and must learn how to successfully navigate byzantine vampire politics as well as their own inner nature in order to survive.. The game presents a great deal of choices in how to resolve quests, often posing moral choices. In many instances (though not all), combat is avoidable, and many missions penalize the player should they kill anyone. The game also does much with immersing the player in the gameplay; the player needs to drink blood in order to fuel various vampiric abilities, and the world is extremely detailed.
http://vtmb.wikia.com/wiki/Vampire:_The_Masquerade_%E2%80%93_Bloodlines_Wiki