Those cursed by the tainted Blood, gaining insight to a world humans have been oblivious to. Tragedies veiled by ignorance and horrors hidden under the shadows, the Accursed now perceives them all. As their name entails, the Accursed have a thirst for the Blood that curses them to become inhumane. The more they mindlessly indulge in the sanguine delight, the more addicting and beastly they become. Growing stronger, but deviating further from humanity with each passing moment. As such, it takes immense resolve to stave off the urge while keeping themselves humane.

Extradimensional beings beyond the comprehension of humans, trapped in their own nightmarish realm, a metaphysical plane with no physical form. Through dimensional cracks, they yearn to be free of their confines and seek appropriate vessels to house their power. However, the Ancient Ones have only been able to influence the world with a fraction of their power through their Blood and kin. Each Ancient One has many names, for their true name is obscured by the mere fact humanity does not have the ability to even comprehend them. Instead, humans have rationalized them as abstract concepts, for the oldest and strongest fear, is the fear of the unknown.

Lesser beings related to the Ancient Ones is some way, eldritch in nature but they weren't always this way. Many have crawled through the gaps and arrived on the physical plane to spread the Blood, pawns to the Ancient Ones and their machinations. Taking on grotesque forms in ways the human mind can barely comprehend. The Kin can also refer to humans who have fully succumbed to Beasthood and shed their humanity entirely.

An ancient organization established since the discovery of the Blood. They are scholars, lore keepers and archivists who viciously guard the secrets of the Ancient Ones from the world under the guise of keeping them safe. Structured in a mentor-apprentice system, the Veil takes in initiates to guide them in a hierarchical order of rigidity. However, everyone has their own desires and the Veil's goals have been muddled by the centuries. Despite their seemingly honorable oath, the Veil has been utilizing the Blood and centuries old connections for their own benefit.

An old branch of the Empyrean's Veil made up of hunters known as The Blades, they guard humanity as the last bastion against the threat of the Ancient Ones. However, they have separated from the Veil after disagreements among themselves. Now, the Order does whatever it takes to hunt down the Beasts despite the warnings of the Veil. Working with mercenaries, criminals, law enforcement, whoever they can ally with in order to protect their cause. As the lines blur, the Order has evidently become more ruthless in their operations while those behind the scenes manipulate others for their own goals.

Fanatical cultists in worship of the Ancient Ones who believe that they will one day ascend to become one with their gods. Their members range from the purely mundane masses who seek a heretical faith, to the zealous Accursed who believes their curse to be a Blessings. Their rituals of acceptance among their ranks often involve willingly taking on the Blood and participating in hunts to purge the tainted Kin from the pureness of the true Ancient Gods and to obtain more Blood for their schemes. Their connections seem to reach out more vastly than most would think, claiming the Blood to not only be a miracle but also a gift to manipulate the needy, the desperate and those in power.

Scientists and academics of a pharmaceutical corporation who believe that the power of science will solve the problems of the plague, greedily hoard the tainted Blood in order to experiment and research it. They believe that through understanding, they will be able to control and utilize not just the Blood, but also the Ancient beings. The Corporation has been one of the factors spreading the Blood, through medication made from the Blood and deceptive surgical procedures. Artificially spreading the plague in order to research it, and control the public's opinion to their indisputable "cure" to their problems.

A lack of Insight is what veils the world from the knowledge of the Ancients, as the saying goes ignorance is a bliss. Those who have gained both the knowledge and Insight to the eldritch truths will start to perceive the unknown and veiled eldritch influences. The more ones learns, the higher their Insight and allows them to perceive more of the hideous truths. However, one must not delude themselves into thinking they understand the Ancient Ones, for humans would be driven mad with incompressible knowledge in the mere presence of the eldritch beings.

A state of overwhelming terror and pain from attempts of the human mind to process the eldritch and the unknown. The higher one's Insight, the more likely they will befall to the Frenzy instilled by the Kin and Ancient Ones due to how much they can perceive. This can lead to individuals reacting irrationally, running out of fear, becoming delusional out of disbelief of the truth, becoming catatonic or even afflict permanent damage to one's mind, turning them anxious, fearful and paranoid.

The beast within is a curse upon those with the tainted Blood, a vicious reminder of their nature that urges them not only to seek out more Blood but also to react more animal-like. The higher an individual's Beasthood, the stronger they are but the more animalistic and beastly they become. Once it reaches a certain point, it starts to effect them physically, mutating them into hideous beasts and their mind will start to slip. There has been no found cure for Beasthood, but individuals have practiced various beliefs to keep indulgence at bay.

Magic fueled by eldritch knowledge and understanding of how the Ancient Ones function, but there isn't always a uniform agreement upon this subject. Each person's Arcane Arts can vastly differ depending on what they and how understand the eldritch from ancient tomes and spells, but they are all mystical and almost forbidden in some ways. Certain Arcane Arts may even afflict Frenzy upon those who witness them and their own caster, making it an effective but dangerous tool. The Veil encourages the exploration of the Arcane, while The STC forbids such dangerous and profane mystic nonsense.