Lust Epidemic and all the games from NLT Media for sure. They're like the perfect balance of porn and puzzle game. If you like RPGs I also enjoyed stuff like Kingdom of Subversion and Harem Collector
Eternum definitely, it's just a fun ride that I think everyone could enjoy. Fun characters, setting and a sense of humor/fun without breaking immersion. I'd also say The Headmaster, just for the writing/development/psychology/etc, but it's very sex-forward, would need some other thing to be about lol
Mist by 395games is a good game, has some survival type of gameplay, some base building/upgrades, some pretty good sex scenes.
Try to give the dev some love, steam screwed the dev for some reason and was not able to get it on steam.
Anything where you need to make a progress, a grind, solve a dilemma or something. Honestly I don't really like AVNs, much of the time I skip the scenes to get a good fap, but it feels different when you have some sort of activity like the things said before
My favorite is actually called VTuber Hack. It has a super fun gameplay loop to me and some of the scenes are so hot. Basically you play mini games, gamba on the stock market, and then donate to vtubers and maybe lead to something fun :3
For some reason I can just spend an ungodly amount of hours on text based games, specifically modded CoC, TiTs, Lilith's Throne and Flexible Survival, for something so basic it draws my attention like no other game genre.
I like the ones that have charcter progression, and choice system, more like a sandbox game. I don't like a clicker simulator novels because they are boring I think
Goblin walker was really really good one. Good graphics, not some AI bs. And addictive gameplay. And also Graveyard executioner. It is a guro, but it was not considered as as hentai by me. It felt like some trashy dark brutal game. It has some hentai content but it's not "fapable", let's say. Gameplay, art style, dark brutal setting - really cool.
I would consider any really well written game to be fun to play for me. Seeing the story play out and getting to know the characters better is enough for me if the game is good enough. Of course that mostly applies to VNs but it can also apply to other kinds of games. As long as a game can keep me engaged I’d consider it fun.
Aurelia is one of my favorite games. Just love the point and click adventure and the pixelized scenes are really good, even if they aren't interactive. Lure of Passion was a lot like Aurelia, and while shorter, it was still pretty fun. I also enjoy the games that Pixelbee has put out, Tamer Vale and Lust Arcanum. They are a lot of fun to play, but lower on the lewdity scale.