..do they have to make one, or can you credit them some other way? (e.g. Social media links)

Edit: I've gotten responses now and the question has been answered, thanks to all who responded!

Godot submission I've been working on pretty much since the start of the announcement (with breaks in-between). I plan to improve the art in the later day(s), though we'll see how that turns out seeing as I'm not much of an artist myself. Feedback greatly appreciated!