Hi,
during a review of the package on salsa, I spotted at least one non-free file musics/theme.ogg:
$ ogginfo musics/theme.ogg
Processing file "musics/theme.ogg"...
New logical stream (#1, serial: 00006c42): type vorbis
Vorbis headers parsed for stream 1, information follows...
Version: 0
Vendor: Xiph.Org libVorbis I 20070622 (1.2.0)
Channels: 2
Rate: 44100
Nominal bitrate: 96,000000 kb/s
Upper bitrate not set
Lower bitrate not set
User comments section follows...
TITLE=Minds wide open
ARTIST=Johan Brodd
Vorbis stream 1:
Total data length: 3364081 bytes
Playback length: 4m:46.320s
Average bitrate: 93,994701 kb/s
Logical stream 1 ended
That song can be found on Vimeo https://vimeo.com/80347147 uploaded by the author with license conditions: attributen, non-commercial, non-derivative. My apologies for the German screenshot, the relevant information is clear, though:
This file is one random sample. My gut feeling and experience ring all alarm bells because when I find one such file, there are likely more such candidates distributed by upstream.
Those files must be either removed or replaced before the package can be included in Debian and I highly recommend to double-check and get a clarification from upstream about copyrights and license terms of the distributed game data.
Cheers,
Bruno