I know of and played Far Beyond the World. I like it a lot, but the MC is ANNOYING. Pervader however is probably going to be my all time favorite gay furry VN. Hero's Advent is another very good read, I can recommend it without second thoughts.
Where does your second paragraph correlate? What fox?
There's not a ton that makes me completely uncomfortable in the horror world, I just don't really wanna see it, because I can't exactly see the point. It is the same with emotional stuff, like for example the destroyed relationships in Echo. There's a German book series I read called Anders (=different), and everyone dies kind of horribly in the end. Besides this it was a phenomenal read. I liked the characters, so their demise left an impression.
*it resembles not remembers Adastra, and yes I can clearly see the similarities.