I will never know, as the early parts were more BDSM and Swinger stuff than I care to play or see. I will agree that the Dana path on it's own, is some of the best writing, renders, posing and dialogue in the genre, but the code, game-play and layout are pretty bad.
I won't argue with you there. Dreaming of Dana is too wedded to its life-sim aspects. It's something that I find is a problem in general in the genre. I always felt it would have been stronger as a straight VN, with branching choices. But Ptolemy made a strong defense of how and why the game is how it is. TBF I need to go back and play some of the updates on that one, as I've been a way form it for a while.
Intimate Relations has the potential to be his best written work.
Characters that have a backstory and motivations. You have to play around those to get to the CGs. In Dreams of Desire you are given a spell that does everything, with characters that are empty shells. There is no dialogue or build up whatsoever, only mind control for sex. Couldn't be more shallow if it tried. The story is just pathetic, it has no depth whatsoever, the usual evil for the sake of it. And you can't call advancment a dude reading a book at a library.
Dialogue in a porn game is what distinguishes a game from CGs, so yes, a shitty plot with no dialogues would never match the immersion of a regular plot with good dialogues and interactions. You can't have a good porn game if you skip building relationships through dialogue like DoD does. That's just CGs, the plot does nothing to make the porn better, the opposite is true, you are making all girls empty shells devoid of agency. You might as well fuck a blowup doll.
And if the dialogue in this game was great. I'd be there with you. It's not.
Porn works in a variety of ways. DoD works in its visuals, tone, and story, which is a fiar bit mroe than raeding a book, there are the dream aspects, finding out the history, figuring out the order, and the like. And I will never claim that DoD was perfect, it's not, at all. But its story works well to move the player from scene to scene, while adding to the overall plot. It's basic ass creative writing 101, but at least it has some level of momentum.
DoD isn't even my favorite type of story. I prefer more agency in the ladies in a game, I am not a giant fan of mind control either, but if works well for what it sets out to do. I get not liking it, and structurally it falls prey to the same issues the bulk of porn games do right now. But it actually HAS a plot at least, and that's a damn sight more than so many of these games that feel like unfunny episodes of Seinfeld. They're about NOTHING.