My favorites are 3D.
My absolute favorite is Coceter Chronicles. This is the game that I look forward to playing all the time. It's got the perfect "player avatar" while also not making your character a blank slate. You decide how Tabitha behaves, down to deciding even if she likes the taste of cum or not, or, if she'd even consider tasting it in the first place. However, at the same time, she's full of personality, your choices determine her path, but she feels real and not at all like the many faceless characters you normally play as in adult games.
After that is a completed game called I Love Daddy. Now, my first playthrough it was a pretty straightforward incest romp. My second playthrough was so different though, that as a result I played through each and every one of its 10 endings. Doing so was quite the treat, as each ending revealed a little more about the overall story, the characters involved, and how they all fit into the narrative.
I'll throw in a bone, one you have probably played, called Kingdom of Deception. 2D game follows a woman betrayed by her own people, set upon by orcs, and who, through her cunning and determination, begins a campaign to win the trust of those Orcs in order to use them to exact her vengeance on those that betrayed her. Game has plenty of sexual content to love as well as being 2D, so if you haven't played it, I'm sure you'll be interested.
Slow to update, but really interesting is a game called Vis Major: Awakening. You play as a girl who somehow has super powers that only really occurred to her now. Your wealthy lifestyle as been ruined by a gang that attempted to assassinate you and your mother and taken over your mothers business. The goal of the game is to use any means necessary to eliminate the leaders of the gang that attacked your family and regain your mother's business.
Really interesting art style and somewhat intriguing storyline in a game called Pale Pure. I only played the half of the game where you play as the wealthy blonde girl, but there's an entire other section where you play as one of the other village girls. In the version I played you were quite the slut, and your adventures were quite entertaining.
Chloe18 is a fun game, but very over the top. It is great, however, if you wanna fap and kill some time, but don't really want to get into an involved narrative at the moment. It's like the sharknado of adult games. Fun to watch, but not really giving you anything of value.
Shameless self plug at the end here, the game I'm writing for,
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, is a female protagonist game. The plot is gonna be a bit of a Thriller, with a mysterious plot going on with our main character, Evelyn "Eve" Price at the center of it all. Don't want to give away too much, the game is only just getting started. (I should probably be writing right now, but having a bit of a block) Anyway, we've had a lot of positive feedback as well as constructive criticism, please check us out.