The game is a good laugh. But by Vanrippers own admission it exists literally just to bait people into drawing a bunch of demon girls, since he felt the internet needed more of that.
There is nowhere near the amount of canon you'd usually have around an IP, but it was just enough for a shitload of people to just run with it.
And here we are :D Demon girls galore!
Bad bot. How did that haplen?