With all due respect, I personally feel like those kinds of projects are a bit disrespectful to the authors (and basically always abandoned); this isn't anyone's art but Anya's and she afaik hasn't consented to her stuff being...co-opted and reused like that. Fanart/fanfic is one thing, but taking her concept and characters to make your own game??? IDK man. It's not heinous, but the idea leaves a bad taste in my mouth.