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:

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    —Ralph Waldo Emerson (1803–1882)

    “The savage soul of game is up at once—
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    “Nature is mythical and mystical always, and works with the license and extravagance of genius. She has her luxurious and florid style as well as art.”
    —Henry David Thoreau (1817–1862)