Born from Death. While vampires usually do not bite non-humanoids, a special exception is made for giant bats. A relatively rare species, giant bats are highly sought after by upcoming vampires to become their servants. If one of these giant bats is slain by the vampire and then buried in the ground, it will rise the following night as a cruorbat under the vampire’s control. These creatures are ravenous and bloodthirsty, much like the common vampire spawn that they accompany. Yet they manage to control their hunger at the request of their masters, only eating what is given to them - often the scraps of creatures killed by the vampire.

Loyal in Death. Every cruorbeast is bound to the vampire that created it, and they hate to leave their master’s side - at least when its a cruorbat or cruorgheist. These creatures are able to leave on excursions that disallow them from seeing their master for long periods of time, but they prefer to take shorter flights that keep them within a few miles of the vampire’s lair. If a vampire dies, then all of that vampire’s cruorbeasts, with the exception of crour hulks, perish as well within the next 24 hours, since their master is the only meaning to their existence.

Protectors of the Lair. After they reawaken, cruorbeasts never sleep, remaining perpetually awake so that they may serve as constant watchdogs to their master. They sit on the balconies of their lair and in the treetops of the surrounding area, always looking out for potential intruders. If they spot any, they do not attack them. They instead opt to warn their master, waking them and alerting them to the intrusion. A cruorbeast will generally only attack if it has been ordered to by its master, in self-defense, or when severely underfed.

Undead Nature. A cruorbeast does not require air or sleep.