Heya! Sorry, can you elaborate a bit?
How are you planning on “marketing” the game? If it’s just “the game is easily moddable” etc., then it should be fine! If it’s “you can use whatever you want included in this game in any of your projects”, then it’s not really okay since I’m not giving these particular assets away for free.
I'd include a exception in the license saying that the assets I'm using are covered by your license and not my project's license (GNU General Public License v3). The reason I'm asking is because you probably wouldn't be comfortable with me including paid assets because then an unscrupulous person could get their hands on them by taking them from my project instead of buying them from you. It would be significantly easier to rip the assets from my game because the PNGs are just sitting there in the publicly available source code, and not packed in something like a Unity asset bundle or whatever where it's harder to get the assets. I'm not planning on marketing the game per se, it's just something I'm creating for myself and showing to some of my friends.
I think they mean the used assets would be in a folder (e.g. 'assets') where if you 'install' the game that folder is accessable (like with old games such as doom where the files are changeable or take-able/modifiable or such as elder Scrolls oblivion where we can take the art/sounds etc..... If we wanted).
I could be wrong.. but that's the overall impression I got.
Maybe they could encrypt the used assets or something to make accessing them not worth the time or effort & include a copywrite notice.
