- The Purity Front: A hate group against those who have been cursed through magical experiments or…any other magical source. They believe that those affected by magic in a negative way have received the curse of Boccob. They attack and hunt the Cursed, Tiefling, and Shadar Kai. They also attempt to to ferret out those who are modified by magics. Ironically, many members of the Purity Front are drastically modified by magic.
- Church of the New God: This society supports peaceful coexistence between all creatures in the universe. Humans, devils, whatever. The Church of the New God is ridiculous happy, always, and ridiculously peaceful, always. Their influence is, however, spread far. Members of the royal family. Members of Havack’s enemies. Everywhere, the Church of the New God is spreading.
- Heads of Tiamet: The heads of Tiamet, you guessed it, worship dragons. They even revere Oxilys Ascuboss. The Heads of Tiamet want, however, to control dragons. They want to use dragon power to cause the human species to attain the next level of its development. Ascuboss is, therefore, just another tool in the generation of a better humanity. Oxilys Ascuboss isn’t partcularly happy being anyone’s tool and the Heads of Tiamet are not a particularly welcome organization in Havack.
- Mortis: Necromancers taken to the next level. Members of ‘Mortis,’ want to incorporate parts of fiends or the undead into their human forms and societies. Members of Mortis are like magical cyborgs and they use the incorporation of other existences to expand their powers.
- Gangs: Despite the presence of a totalitarian regime and a ridiculously powerful thieves guild, there are still the low end gangs which vie with one another over Havack’s leavings. Some of the gangs are quite powerful on the streets, though few rival imperial power, and none ever rival The Breed.
- Recurrent Havack: Members of Recurrent Havack believe in the divinity of the emperor. They believe that Polsich Ascuboss is the living embodiment of the god Havack and that his will is divine. They are loyalists and zealots.
- Crucible: Members of the Crucible are opposed to deviltry. They see it as their goal to close the gates into Cadabron from the other worlds, and feel nothing but antipathy to anything from another plane.
- The Guilds There is economic opposition to the rule of the Houses. Obviously, the most notable is the Breed who, some say, rule Havack from behind the throne, but there are numerous other guilds out there that believe in the free enterprise system as a better way of controlling the people of Havack.
- Children of Bahamut: Essentially, the children of Bahamut are a terrorist organization. They covertly oppose Havack and long for the day when they can end the evil reign of the Houses.
- The Breed: Kind of like a cross between the secret police, a clan of Ninjas, and the Koch brothers. Officially, the breed are Havack’s thieves guild, except that they have their hands in so much, calling them a thieves guild is fairly dismissive. They are older than the houses.
- Order of Baccob: This group wants nothing more than to elevate its members through the employment of humanity. Members attempt to walk around with as many magical augments as they can afford.
- Second Horizon Members of the second horizon pride themselves on their ability to use magic and artifacts from other worlds. Most dream of finding some paradise out there in the astral plane where they can retire as a a kind of mini-god.
- Alternate House The character is a spy for another royal house and is probably actively engaged in trying to bring down the rule of Polsich Ascuboss
- Hunters of Aversill The Hunters of Aversill are intrigued by the possibility of Havack’s twin being out there somewhere. Though their quarry might be shrouded in mystery, they search nonetheless because they think that most of Havack’s problems stem from its missing half..
- The Rising: The Rising believe that the status system in Cadabran has bred total corruption and that the Cottaif in the hills outside of the city must rise up. Basically, they’re a group that tries to incite rebellion from the lowest sector of the empire’s economic base.
- The Questari: Not really a secret society. Really more just gypsies, but there are a lot of them and the ruling house never seems to like them much.