itch.io

There is Theory of Fear, it used to be on Steam but it's been banned in my country, not sure if it's available for other countries. When you find it somewhere, you might enjoy it. 
It's the darkest visual novel I played so far, there are several levels of non-con and violence. It's also explicit.

This game is so well-written. I played it until late at night, which probably wasn't the best idea, but it had me hooked. 

I loved Camille as a heroine. Her backstory and self-refleciton is the good stuff. In the beginning she might look like a simple trope, but she is anything but. And she has guts. 
Osgood is harder to understand at first, but his character arc is refined and his backstory made me cry.

And the Ending that you get when you unlock the possiblilty at Osgood's door got me crying happy tears. 10/10, can recommend.