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:

    ... the door that nobody else will go in at, seems always to swing open widely for me.
    Clara Barton (1821–1912)

    In the game of love, the losers are more celebrated than the winners.
    Mason Cooley (b. 1927)

    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)