Milestone #3: Analyze Your Appetites Not all vampires choose to delve into their true nature, choosing instead to accept a more mundane existence. Milestone #2: Pursue Your Passions There are nine main houses of Bloodborne, based on shared predilections, tastes and behaviors: Cicuta, Interfector, Philologus, Sanctus, Silenti, Tombeur, Transeo, Tristis and Vespillo. Milestone #1: Explore Your Prospects Over the centuries, vampires have classified their own kind, which formed the root of a rough caste system: the Bloodborne.