>Please note that not everything is GPL2+. The music is certainly not, it is in >fact not even distributable in non-free since most songs do not have any >license information, and some of them even lack copyright notices. Although I >believe all graphics has been created from scratch and is in fact covered by >the GPL, you should check it out to be sure. With Edgar, you can probably run >the game (maybe with minor tweaks) without music.
(Stumbled across this today)
The code is GPL and the gfx and data is CC BY-NC-SA 3.0. Removing the sound should be quite straightforward. If you do want to add this game to Debian, let me know and I can supply a patch for the latest release (0.97) to allow the game to run without sound.