As the Chronicles of the Principium Paradoxi cover the full range of supernatural races of the world of darkness they are divided into number of categories each corresponding to one supernatural race. They should allow the chronicles in each category to have common elements including cast and possible crossovers between the Chronicles within the categories. While those Chronicles which cross over supernatural races will be run as part of the Principium Paradoxi.
The current categories are:
- Principium Tenebrarum (The Darkness Principle) - These are World of Darkness Chronicles.
- Principium Mutationis (The Changeling Principle) - These are Changeling: The Dreaming Chronicles.
- Principium Daemonis (The Demon Principle) - These are Demon: The Fallen Chronicles.
- Principium Venatoris (The Hunter Principle) - These are Hunter: The Reckoning Chronicles.
- Principium Magi (The Mage Principle) - These are Mage: The Ascension Chronicles.
- Principium Mumiae (The Mummy Principle) - These are Mummy: The Resurrection Chronicles.
- Principium Vampyri (The Vampire Principle) - These are Vampire: The Masquerade Chronicles.
- Principium Spectri (The Wraith Principle) - These are Wraith: The Oblivion Chronicles.
- Principium Lycanthropi (The Werewolf Principle) - These are Werewolf: The Apocalypse Chronicles.