d20 System OGL

Licensed d20 System rpg books from Third party publishers for use with D&D 3rd and / or 3.5 ed.
Books with the d20 trademark used a WotC System reference document that is Open Game Content (OGC) for licensed parties to use under the Open Game License (OGL).
Any rpg books licensed for use with D&D 5th ed are generally found in our Dungeons & Dragons subcategory – at least for now.
https://retrorocket.com.au/dungeons-and-dragons/

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Showing all 14 results