So cc0?
Use it in your game, modified or not. No commercial license or attribution is required. But obviously, respect the creator and don't just download to resell as your own. That would be shady af lol
So is it CC0?
if yes, you should add the license into metadata for the asset pack(s):
"Edit asset pack->Metadata->Release Info->License for assets" It will increase the size of audience that will be able to find your art
