On Wed, Sep 17, 2008 at 3:21 PM, Miriam Ruiz <[EMAIL PROTECTED]> wrote:

> This might be really relevant for us, the Games Team, as there seem to
> be quite a lot of games that have a different license for the engine
> and the game data, and the combination of GPL and CC-by-sa seems to be
> getting more and more popular.


And that is fine, so long as the game data is /also/ available under the
GPL.

Note that it is not just games that have this problem, nor is this a problem
specific to "content" vs "code".  Many projects have incompatible licenses
applied to different components or dependencies.  Copyright holders often
just need to be made aware of this legally makes the work undistributable as
it cannot be distributed while in compliance with both licenses.


On the other hand, for some games (and theoretically for most of
> them), the same game engine can be used with different data, and some
> times vice-versa. If this is the case, the situation might be similar
> to a media player and media data, or to a word processor and the
> document.


The case where the same game content can be used in a different engine+code
verbatim is exceedingly rare.

As I understand the situation, what makes the game one copyrighted work is
that the content is not generic, application-agnostic software as an image
in the GIMP or a text document in a word processor.  While the technical
process that these are loaded may be very similar, this is an issue of legal
judgement, not technical process.  That the code and content is both
software and is utilized as a single work is what makes them one work.

One could likely argue that if the game content were in a standard format
and displayed/interacted with much like a web browser displays
HTML/CSS/Javascript that the content would be considered a separate
copyrightable work.  An example of this may be ScrummVM.  I'm not aware of
any modern system like this, however.

Note that the conflict that's arisen with incompatible licensing is due to
poor education on the GPL.  Many people are under the false impression that
the GPL only applies to executable code or that there is some problem with
licensing content under the GPL.  In truth, those looking for their work to
be under the strong copyleft effect of the GPL are best not separating their
work's copyright artificially as it may open a loophole for 3rd parties to
release proprietary replacement game content.

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