One of the two religious races, the Acerbus Cunctor are just as fanatical as the Irae, but they consider themselves infinitely more civilized, making them more shadowy and underhanded, but just as deadly. Formed from a religious alliance between the Miser Pecunia and the Inimicus Divitiarum, they are have used their preachings and their monetary advantage over the other races to find their way into a large number of countries, and can be found throughout Timus, the Hostes Mark, and Berenford, with a significant presence in Heronon and Archo as well. Like the Irae, they are also made up of members of an ancient religion who have twisted the teachings of the god they worship from peace and forgiveness into intolerance and forced conversion. They are not as overtly violent as the Irae; being extremely materialistic, they prefer to get use out of nonbelievers, preferring to enslave them or take ownership of their lives to pillage them for resources.

The Acerbus Cunctor's chosen god is that of the dominant religion across the world of Terra, and it is said that they are therefore the most dangerous of all races; because the majority of people of the other races follow their religion, they are always in the ears of almost every race, weaving their shadowy intolerance even to those who don't subscribe to it, often forcing others into acts of violence on their behalf to shift the blame. The Patientia like to say, as a word of warning among their people to be careful of the Cunctor's deadly power, that "we all have a little bit of Acerbus Cunctor inside us."