question: What is the name of this public copyright license that may be used by tabletop role-playing game developers, in which Dawning Star is published under it?
answer: Open Game License
context: Title: Simputer General Public License
  Passage: The Simputer General Public License, or the SGPL is a hardware distribution public copyright license drafted specifically for the purpose of distributing Simputers.  As a license it has been loosely modeled on the GPL but in substance it is very different.
  Title: Public information licence
  Passage: The freely reusable public information licence (French:Licence information publique librement réutilisable or LIP) is a public copyright license, created 2 April 2010, that permits the free and open reuse, commercially or not, of information released by a French public institution, on condition of respecting article 12 of the law of 17 July 1978.  Not all French public sector information is placed under this license; Anne Fauconnier of the state intellectual property agency specifies that this LIP is and remains strictly reserved to certain information published by the Ministry of Justice (France).
  Title: CrimethInc. N©! license
  Passage: The CrimethInc.  N©!  license is a share-alike anarchist public copyright license with restrictions of use based on anti-statism and anti-corporatism.  The terms of use were written by the CrimethInc.  Ex-Workers Collective and included in some of their works such as the group's "cookbook", Recipes for Disaster.  The license allows any person acting in good faith to use the content in any way to better the world.  It expressly prohibits the work to be used by any corporation or government body.
  Title: Public copyright license
  Passage: A public license or public copyright license is a license by which a copyright holder as licensor can grant additional copyright permissions to any and all persons in the general public as licensees.
  Title: Open Game License
  Passage: The Open Game License (OGL) is a public copyright license that may be used by tabletop role-playing game developers to grant permission to modify, copy, and redistribute some of the content designed for their games, notably game mechanics.  However, they must share-alike copies and derivative works.
  Title: Open Directory License
  Passage: The Open Directory License (ODL) is a public copyright license that was used by DMOZ for its content.
  Title: Dawning Star
  Passage: Dawning Star (abbreviated "DS") is a science fiction role-playing game by Blue Devil Games built on "d20 Modern" and powered by "d20 Future" by Wizards of the Coast.  It is the first full-scale campaign setting using the "d20 Future" ruleset.  It is published under the Open Game License.
citations: Dawning Star Open Game License