Open Game License

The Open Game License (or 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.

Read more about Open Game License:  Language of The Licence, Using The OGL, Background

Famous quotes containing the words open, game and/or license:

    Manuel showed her his open hand: “Look at this finger, how meager it seems, and this one even weaker, and this other one no stronger, and this one all by himself and on his own.”
    Then he made a fist: “But now, is it strong enough, big enough, solid enough? It seems so doesn’t it?”
    Jacques Roumain (1907–1945)

    The family environment in which your children are growing up is different from that in which you grew up. The decisions our parents made and the strategies they used were developed in a different context from what we face today, even if the “content” of the problem is the same. It is a mistake to think that our own experience as children and adolescents will give us all we need to help our children. The rules of the game have changed.
    Lawrence Kutner (20th century)

    It is a misfortune that necessity has induced men to accord greater license to this formidable engine, in order to obtain liberty, than can be borne with less important objects in view; for the press, like fire, is an excellent servant, but a terrible master.
    James Fenimore Cooper (1789–1851)