FAQ - Open Game License
What is the Open Game License?
OPEN GAME LICENSE
This product includes Open Game Content used under the Open Game License 1.0a.
The Open Game License allows publishers to use and share designated Open Game Content, provided they follow the license terms and preserve required notices and attributions.
See the Open Game License 1.0a text included with the relevant product for the full terms, conditions, and declarations of Open Game Content and Product Identity.