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Content Licenses

Volvelle's code is AGPL-3.0. Game content is licensed separately, per system, under its own open license. This page lists every system's content license and the attribution it requires, and it grows as systems are added.

Code licenseAGPL-3.0-onlySystems listed2Updated2026-06-07
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01Code and content are licensed separately#

Volvelle's software is licensed under the GNU AGPL-3.0. The game content it ships (rules text, stat blocks, spell and monster descriptions) is not part of that code license. Each system's content is provided under its own open license, set by that content's source.

Plain English
Reusing Volvelle's engine is an AGPL question. Reusing a system's content is a question for that system's license, listed below. The two are kept deliberately separate.

02Systems and their content licenses#

Dungeons & Dragons 5e (2014)

  • Source: System Reference Document 5.1 (SRD 5.1)
  • License: CC-BY-4.0
  • Rights holder: Wizards of the Coast LLC
Required attribution
This work includes material taken from the System Reference Document 5.1 ("SRD 5.1") by Wizards of the Coast LLC and available at https://dnd.wizards.com/resources/systems-reference-document. The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available at https://creativecommons.org/licenses/by/4.0/legalcode.

"Dungeons & Dragons" and "D&D" are trademarks of Wizards of the Coast. Volvelle is an independent project and is not affiliated with, endorsed, or sponsored by Wizards of the Coast.

Dungeons & Dragons 5e (2024)

  • Source: System Reference Document 5.2.1 (SRD 5.2.1)
  • License: CC-BY-4.0
  • Rights holder: Wizards of the Coast LLC
Required attribution
This work includes material from the System Reference Document 5.2.1 ("SRD 5.2.1") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.

"Dungeons & Dragons" and "D&D" are trademarks of Wizards of the Coast. Volvelle is an independent project and is not affiliated with, endorsed, or sponsored by Wizards of the Coast. The 2024 SRD ships under CC-BY-4.0 only (no OGL channel).

Only openly-licensed content is used. Never scraped or unlicensed sourcebook material.

03How this list grows#

As Volvelle adds systems, each new one arrives with its own open license and is listed here with the attribution it requires. Adding a system never changes Volvelle's AGPL code license. The two are kept separate so this catalog can grow freely.