Derivative Works
The NetHack GPL requires all derivative works to be distributed under the same license, except that the creator of a derivative work is allowed to offer warranty protection on the new work. The derivative work is required to indicate the modifications made and the dates of changes. In addition, the source code of the derivative work must be made available, free of charge except for nominal distribution fees.
Read more about this topic: Net Hack General Public License
Famous quotes containing the words derivative and/or works:
“When we say “science” we can either mean any manipulation of the inventive and organizing power of the human intellect: or we can mean such an extremely different thing as the religion of science the vulgarized derivative from this pure activity manipulated by a sort of priestcraft into a great religious and political weapon.”
—Wyndham Lewis (1882–1957)
“A creative writer must study carefully the works of his rivals, including the Almighty. He must possess the inborn capacity not only of recombining but of re-creating the given world. In order to do this adequately, avoiding duplication of labor, the artist should know the given world.”
—Vladimir Nabokov (1899–1977)