I forgot to ask but will our MC in the future have any ability to shape shift into a more human looking form? Or will he grow a penis and having sex with the girls in his harem?
No shapeshifting, but, event it's some kind of a spoiler, your subsequent words are pretty close to the truth.
The only thing I have to mention already is that I don't think there will be "harem" of the MC. There will be a lot of twists and turns between the main characters of the castle, but they will be logical because they all have their own stories and their personalities.
The idea for the game came to me after I played "Simtentacles" by zxc. And firsly, in my head, everything was looking a lot darker and lewder. For you play as a demon who, when victorious, takes the girls to his castle and then corrupts them and after that, they become your minions. And you could build a prison and torture room and so on. But then I just realised that...I don't want my game to be like that. Developing a game is always a sacrifice of something. Rape, corruption, ntr, etc. are definitely very powerful sexual drivers, but I have to sacrifice them, losing a lot of sexual energy for I just don't want my game to be like that. I want my game to be a lot more vanilla. But in the same time pure absolute vanilla is just boring, just like pure rape. My goal is the right fusion of these two things. Finding a balance. And that's what I'm doing now in terms of my art improvement. I hope that in my next works I will get closer and closer to this.
And speaking of the corruption, it will be there. But it won't be the way we're used to seeing it...It will be realistic. So realistic, you'll need to think hard about whether you're ready for the consequences. It's all up to your choices. The game will move from a lighthearted beginning to more and more serious continuation. On the "came for the boobs - stayed for the story" model.
Of course, this may disappoint some people, but that's just me, I just want to make some outstanding hentai game.