I’m interested in adding this to my Libre Game Assets.
Would you mind putting a proper license on this? The Free Software Foundation has a good explanation of why “informal licenses” are bad. (TL;DR: In some countries, the law might interpret a not-precise-enough license statement as invalid and, thus, “All Rights Reserved”.)
(If you want to see how far that “other jursidictions” thing goes, take a look at this analysis of how far the CC0 has to go to achieve “like Public Domain” status in Germany’s “protect the creator from giving away too much” system.
(eg. Germany’s legal system prevents you from giving away rights that didn’t exist at the time you made your statement, so the CC0 includes a clause where you make a legally binding promise not to sue over rights that get written into law later.)
I’m also willing to add any of your other assets to my list if you add a suitable license declaration to them.