I like the concept. As I said in my previous post, I like surrendering to my crush, but especially in the beginning, without the sissyfication or high school, hospitals or sissy universities. That is, a small-scale story about the relationship between the MC and the dominant female and the development of this relationship. Not that the dominant female insults and mistreats the MC righ away, but a relationship of trust that develops and in which the MC progressively gives himself to the dominant female.
We have other large-scale games with science fiction or fantasy settings, in which femdom reaches society or the state itself. That is too much for me, and it is okay sometimes, but other times is better a little intimate story between two people.
So I think that the perfect concept would be the beginning of surrendering to my crush combined with
escalation! . The issue with escalation! is that it seems that it is a game just to fap, and we only see that "escalation" with the bdsm sessions, which become more extreme, but the "escalation" is left aside when it comes to developing the relationship between the characters, the psychological aspects and the progressive handover of control. In the case of your game, for example, it could be that the MC and the dominant female are friends in the beginning, but he feels sexual atraction and love for her, and he confesses to her, but she rejects him. But she would like to continue having him as a friend, since he helps her and maker her life easier, so she friendzone him. Realizing the female character that the MC does everything possible to satisfy her and make her happy, se decides to take advantage of him, developing the relationship to a femdom one. The focus on chastity and orgasm denial would be fundamental, because this way the MC would only focus in the dominant female and would develop dependence on her. This relation would have its crisies (for example, surrendering ot my crush did this well with the termination of the slave contract, but it did not develop it and there were not more situations like this), the MC would think that he is doing something irrational, giving everything to the female dominant in exchange of nothing, and without even having sex, but he would end up returning to her, developing the relationship, and in its case, going to more extreme femdom relationship, or not.
So I think that it would be a great idea a game based in a story like the one I described but focused in chastity and orgasm denial, with other fetishes too, avoidable or not. Regarding to what other fetishes could have, like others said, you should make the game you want to make. But I believe that Netorase, not Netorare, would fit perfectly in this story since the MC would be locked in chastity and incapable of mantaining sexual relations. That is to say, the role of the MC would not be to sexually satisfy the dominant female, but to please her in other ways. For this, the female dominant could have a boyfriend, and this does not have to be humiliating, or yes, as you want, but i believe that it would be preferable to avoid the racial fetish with black men, BBC, queen of spades and this kind of things. Some people could think that, due to the focus in chastity and orgasm denial, and in abscense of penetration, a game like this could be limited and without fapping material. But I believe that this opens a lot of more creative ways to create lewd situations with femdom focus.
In relation to incorporating more female dominant characters, and other routes, I believe that is better not to try to do too much, and first develop the story with the main dominant female characters. There could be more, and more fetishes could be incorporated depending on the girl. I think that a sexy way to introduce them would be if they tried to "steal" the MC from the main dominante female character, and the player could choose, opening new routes and new female dominants.
I would like to make a game based on this concept, for which I have many ideas.
After playing your demo, I think that it has potential and that there are not many games with the same approach, so I encourage you to follow it, we will read you here!!!
Answering to your questions:
- Whether the premise feels interesting
Yes.
- What fetishes or themes you'd like to see (I'm already thinking about CBT, SPH, facesitting, orgasm denial, and NTR- skippable ofc)
Those are fine, fetishes are something personal. But it would be great if the main fetish is chastity and orgasm denial. Complementing this main fetish, you could incorporate gooning, edging, with no orgasm or ruined orgasm, and in its case, milking and prostate orgasm.