I feel like what I usually see focus on is inhuman/terato teeth (categorically offputting and uninteresting to me, sorry) or biting (to which I am indifferent; I don't have any feelings for it aside from being a convenient way to inflict pain) or tied to eating/vore (decidedly Not a sex thing to me)
(idle rambling) I hope one day I can convey the appeal of teeth as a fetish. I feel like I haven't run into anyone who sees it the same way I do
It's like armpits or feet or stomach in that it's something commonplace that you only catch alluring glimpses of in normal, daily life.
Tbh you could replace "games" with the more broad "art" here. I think this feeling is just more acute in inde dev spaces because you invariably rub shoulders with temporarily embarrassed Notches, even more than the temporarily embarrassed Vivziepops in digital visual art spaces.