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[GPL]

Under which license are we going to release our demos and the openwar engine?
We're going to be open source, but there are different open source licenses. I described the two that I think are interesting for us:

GPL
General Public License.
This is the best know license of them all. Most open source applications are released under this license.
Basicly this means that everybody can see and adjust the source code as they wish and commercial projects can't use software that's released under the GPL.
See the wikipedia page for a good description and more links to other pages.
GPL on wikipedia: http://en.wikipedia.org/wiki/Gpl


LGPL
Lesser General Public License.
As the name suggests the LGPL is based on the GPL. Companies can use software that is licensed as LGPL in their commercial projects. Everybody is still able to see and adept the source code.  However if the LGPL code is changed and used in a commercial project, then the new user is forced to share the changes he has made to the LGPL code with the community.
There a quite a few engines releases under the LGPL. This license has several benefits over the GPL license.
See the wikipedia page for a good description and more links to other pages.
LGPL on wikipedia: http://en.wikipedia.org/wiki/LGPL

There are more licenses available, but I think the above 2 are the most important for us. None the less, here are some links to the wikipedia pages of them.
http://en.wikipedia.org/wiki/BSD_license
http://en.wikipedia.org/wiki/MIT_License

I think we should choose for the GPL license for our pre-projects. Simply because we want it to be open source so that everybody is free to use and change it. Commercial companies can't use our pre-projects under the GPL, which is fine for me.

For our openwar engine I think we should choose for the LGPL option. This way companies can also use our engine for their game while other open projects are also still able to use our engine.

see also:
http://openwar.bartvanheukelom.nl/wiki/index.php/License
http://openwar.bartvanheukelom.nl/forum/index.php/topic,34.0.html

and commercial projects can't use software that's released under the GPL.

I think they can () but then they also have to release the source with it (for buyers)

http://openwar.bartvanheukelom.nl/forum/index.php/topic,275