Hello Steve,
Since i couldn't find any way to contact you in private, I'm writing you here. I'm part of the community developing Endless Sky, an open source game reminiscent of Escape Velocity.
We've been made aware that that Aurora C# uses some assets from Endless Sky, and i decided to check it out. It turns out there are some *serious* licensing issues. Now, the content that is taken from Disney's, Games Workshop's and presumably some other IPs is not really my concern - I'm not lawyer enough to determine whether that is fair use or not. I would simply advise against taking that wager, since it only serves to make your game more vulnerable to copyright claims.
What i am concerned about is the use of licensed free artwork without proper acknowledgement. Specifically, the files i found are:
- Ship074. png : Originally
https://github. com/endless-sky/endless-sky/blob/v0. 9. 8/images/ship/berserker. png, licensed under CC-BY-SA-4. 0 by Michael Zahniser:
https://github. com/endless-sky/endless-sky/blob/97c1fae2e1a9ecec2d14cf44b34101f37e763b05/copyright#L10-L12
- Ship029. png: Originally
https://github. com/endless-sky/endless-sky/blob/v0. 9. 8/images/ship/berserker. png, licensed under CC-BY-SA-4. 0 by Michael Zahniser:
https://github. com/endless-sky/endless-sky/blob/97c1fae2e1a9ecec2d14cf44b34101f37e763b05/copyright#L10-L12
- Ship067. png: Originally
https://github. com/Amazinite/Shields-Up/blob/master/002-Phils%20Flavours/images/ship/katalox-1. png, licensed by Phil Morley under CC-BY-SA-4. 0:
https://github. com/Amazinite/Shields-Up/blob/master/002-Phils%20Flavours/copyright%20and%20changelog%20etc. txt
These files are all licensed under CC-BY-SA-4. 0, which allows you to use them in this way - as long as
a) you give proper credit, either by means of a Debian Copyright File (
https://www. debian. org/doc/packaging-manuals/copyright-format/1. 0/) or in any less formal way
b) Aurora C# is published as either CC-BY-SA-4. 0 or a compatible license
I strongly advise you to either adhere to these terms, or remove the files in question from the game. Not only is it legally questionable (although i doubt anyone will choose to exercise their right) , taking artwork from random artists and distributing it as a package that is seemingly entirely your work is simply disingenuous and rude. Given that you yourself are making your creation (which is most impressive, by the way) freely available on the internet, i hope your understand and correct this situation.
Thanks for reading.
Edit: Sorry for the botched links, i can't make the forum recognize BBCode, nor can i make it stop inserting spaces after every dot. Hope this is still somewhat readable.