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:

    Revolutionary politics, revolutionary art, and oh, the revolutionary mind, is the dullest thing on earth. When we open a “revolutionary” review, or read a “revolutionary” speech, we yawn our heads off. It is true, there is nothing else. Everything is correctly, monotonously, dishearteningly “revolutionary.” What a stupid word! What a stale fuss!
    Wyndham Lewis (1882–1957)

    People’s affections can be as thin as paper; life is like a game of chess, changing with each move.
    Chinese proverb.

    Purchasing power is a license to purchase power.
    Raoul Vaneigem (b. 1934)