for me there are three buckets, Like, Meh and Nope
certain things like corruption would draw me to a game, Like bucket
things like feet, incest, exhibitionism and rough go in the meh bucket, more interested in in if the fetish is exectued well in a game, i probably wouldn't miss any of them if they weren't there
Nope: scat, gay male, bestiality, gore, shota or other underage
others have very specific conditions, NTR, if it's present use it properly, don't just blinfside the MC with a viscous piece of NTR, use it as a gameover or as "bad" or "evil" action that the MC can take, making him the cuck-er rather than the cuck-ie, if you get what i mean. Futa is similar, Futa + female is great, Futa + male is nope for me.
just a final thought, certain fetishes and content types are generally considered a "redline" for a lot of people, bestiality, scat ect. shouldn't be part of mainstream adult games, even in small quantities, they should have games dedicated to them to please that particular crowd and let the rest of us ovoid it, just my opinion.