Back to Directory
About
Cross Planes Game Studio is the one-person publishing imprint of designer Mark Craddock, who describes it on his own site as "very much the definition of vanity publishing." Output is sold exclusively as downloadable PDF supplements through DriveThruRPG, RPGNow and the DM's Guild, including the Class Hack and Race Hack lines for The Black Hack, Folk Lore and Warlock Patron books for Shadowdark, Deities and Domains for D&D 5e, the Character Crucible warlock patrons, Psionics Unearthed, Liber Monstrorum, Wizardry Unearthed and B/X Essentials titles such as Foe Folio. In June 2026 he reported tha…
Activity
- Latest Game
- Warlock Patron: Saint Aramys for Shadowdark
- Latest Year
- 2025
- Games listed
- 16
Published Games(16)
| Game Name |
|---|
| Character Crucible: Acererak, A Warlock Otherworldly Patron for D&D 5th Edition |
| Class Catalog for B/X Essentials |
| Deities and Domains: The Mage-Priest, a Sorcerous Origin for D&D |
| Foe Folio for B/X Essentials |
| Foelio for the Cepheus Engine, Cepheus Sorcery, and Barbaric! |
| Folk Lore 2 for Shadowdark |
| Folk Lore: Additional Ancestries for Shadowdark |
| Liber Monstrorum for Shadow of the Demon Lord |
| The Antagonist Anthology, A Supplement for the Cypher System |
| The Class Hack 2nd Edition for The Black Hack Second Edition |
| The Class Hack, A Supplement For The Black Hack |
| The Race Hack, A Supplement for The Black Hack |
| The Race Hack Second Edition for The Black Hack Second Edition |
| Warlock Patron: Saint Aramys for Shadowdark |
| Weapon Properties for Shadowdark |
| Wizardry Unearthed for Swords & Wizardry |