From the publisher's blurb:
Axioms is Autarch's quarterly supplement for the Adventurer Conqueror King System. Each issue of Axioms offers a mix of short content updates for ACKS, such as new classes, new sub-mechanical systems, explorations of specific themes within the game, short adventure scenarios, and more.
In this, our premier issue, eldritch secrets are revealed…
Beyond Arcane and Divine: rules for designing custom magic types for your campaign3
The Shades of Magic: because power corrupts, and powerful magic corrupts magically
Introducing the Wizard: mankind’s mightiest practitioners of arcane magic
The Art of Arcanogenesis: creating new life-forms with magic
Overcasting: going beyond the limits has a price
While designed for use with ACKS, content in Axioms is compatible with any d20-based fantasy RPG built on the OGL.
Axioms is made possible through the support of our patrons, who receive early access to the articles on a month-by-month basis. If you're already a patron, thanks for your support! To learn more, visit https://www.patreon.com/Autarch