The bigger turnoff for me is this Meet and fuck mentality some devs have going on. There are so many ways to fix it, even a fucking timeskip - if done well enough - could do the trick. People don't just get to know each other and then they engage in a sexual relationship.
Yes they do. But you have to do it correctly. The Stairway to Heaven is a common trope, one that you, as a fan of DmD are quite familiar with. It's also a real thing. However it doesn't work like in games. You and another person gradually build familiarity. But that familiarity is gained relatively quickly between the right people or in the right circumstances. The reason most people go to clubs and bars looking for love is that it provides exactly that atmosphere. You're encouraged to meet and talk, with the help of a little healthy dose of alcohol to loosen everyone up. You take their hand, nonchalantly as you lead them to the dance floor, and on that dance floor, you're all over one another, increasing the comfort and familiarity between the two of you, as well as stimulating your sex drive. Assuming things are going well, you're talking and liking the conversation, you're comfortable with affectionate touches, sexual dancing, etc, you just might make it to the kiss. That kiss is a make or break moment for a number of reasons. Skill is the most obvious, if you're able to give them a kiss that leaves them wanting. More innocuously, however, is the reason science has shown we kiss in the first place. It is an exchange of bacteria and viruses. Our bodies are able, through this kiss, to determine if the partner has the potential to be a good mate, to increase the chances of survival of your children because of this swapping of information. After the kiss it's smooth sailing if everything goes right you can ascend the full way up the staircase.
For a writer, it's all about building the sexual tension in this scene. If done properly you can convince me that anyone, no matter how resistant to the idea of casual sex they may be, might fall prey to their lust. If you have two characters casually meet and don't show the steps, the conversation, the familiar touches, followed by the more sexual advances, the kissing, make us feel the fireworks, give us the dancing and the light inebriation, we have no frame of reference to believe that these two people are into one another. But if you do all these things as I already stated, you can make me believe that Mother Theresa and Jesus himself decided to fuck that night.
Other thing is the elephantiasis epidemic going on in these games. Unnecessary huge body parts could be just a artstyle and design decision, however, how can it be a good design choice when everything but tits, butts and dicks are at least aiming to be realistic? In nearly all "good" games we have a main character bigger than a horse, and all the girls just talk about how big he is and how much he cums. Which is extremely unrealistic. Never saw any girl who dirtytalks like this, or a girl who likes giant dicks (besides camgirls and porn actresses who obviously are playing on the fetishes of others). And because of that the player can't connect (well, who wants to be liked solely for the length of their cock?) with what the plot is trying to convey, and so it turns into a grind to have some eyecandy and maybe some fap material.
So... Size matters. But not in the way people think it does. Girth is far more valuable than Length. The "G Spot" is actually closer to the entrance of the vagina than it is toward the womb. However, bringing the womb into question, there's an eroticism to that fullness, to feeling it knocking on that door. All you need to do is walk into a sex shop to know that there absolutely are girls who want a big dick. Now, does that mean that they need it? No, and if they don't have it they aren't going to fucking complain to the person they have an intimate relationship with about it. Average size is more than enough to get the job done.
As for copious amounts of cum, that again speaks to the eroticism of it. Theoretically, the more cum the more potential for impregnation. Psychologically this is a turn on. Again, going back to what I said about "feeling full", if a girl feels that way, it's erotic, and even more so if she says it, because it comes off as praise. Sure, most guys are lucky with a couple good dollops, but that doesn't change the implications and feelings associated with it.
Finally, all of this comes down to fantasy fulfillment. Men want a big dick, women want to get fucked like never before. Men want to hear they are the best fuck a woman has ever had, women want to imagine giving themselves over to such a man. Men want to be able to impregnate anything that walks, women want to be impregnated by such a man. It is ok for a fantasy to not be real. There are plenty of kinks that aren't real. Futa, Vore, and Fur, for example. What matters isn't realism, it's plausibility, and this is all plausible.
I guess it is this way for me because I initially came to the forum because of commercial visual novels like utawarerumono and such, where the plot is trying to make a point about a subject matter through the connections players make with the characters. Play a game just to fap is fine, but there are so many stories to be told that can do more than entertain you for some hours. I don't see why devs get so fixated in the immediate sexual content, rather then slowly building relationships that look and feel real between the characters, all the while, telling a good and meaningful story. Video games are art, dude, the writing should be a way for the devs to insert their life experiences, views, and wishes into the story, so it can tell something to someone.
Devs get fixated on instant gratification because they are forced by the current system to provide consistent content people find worth paying for. The real problem isn't the need to develop the sexual relationship, it's the lack of talent in the majority of developers in the field of writing. As I mentioned above, it's absolutely realistic for a couple to meet at a bar and fuck that night, but that process requires development. It's the same development you're seeing in these games with the slow idea you're talking about, but over much less time.
But i guess for most of the devs, this is just a cashgrab they happened to stumble up on.
As a dev, this just pisses me off. You obviously don't know shit about what goes into making a game. The days spent just tossing words at the paper till you find something that really resonates. The hours spent painstakingly posing or drawing your characters. The slog of waiting for renders to finish. The stressful process of implementing your code only to spend an hour looking to see what's wrong and finding a missing semicolon. You're damn right that you see a lot of projects that don't see a return get abandoned. That kind of labor is not something to scoff at, even in a crap game.