No, not every game does. This is an incest game, so if you're looking for some conflict or something to overcome, there's all the challenge you need. How do you convince family members to go against society and their own initial feelings and have sex with you? The "antagonist" is the incest taboo itself, added on top of the difficulty in seducing any girl in the first place. That's not to say that you can't have an antagonist if you want one, but even without incest you don't need that. You just need a good story, and some challenges to overcome. Believe it or not, challenges can come in all types, and not just some guy that is trying and succeeding to have sex with your family.
THIS!
The conflict and nemesis in Incest games is Lust vs your own morals and conscience. It is an internal battle and to win you not only have to overcome your own morals but convince a family member to give up on theirs by seeding their lust, and trying to do things that will make their lust overcome the social stigma and internal morals against such a sexual coupling!
Seduction of someone who should be immune to your sexual advances and knows it is taboo to even consider you as a sexual partner is a hell of a lot more challenging than going online buying impotence pills and getting your older sister to dose your nemesis. How do you show a family member your sexual interest without being overt where you could be outcast for asking for that taboo. The challenge of leaving hints for family member to discover that tells them you are interested in them sexually without being obvious and direct so it can be taken as an innocent act.
That is the real GAME played in an Incest relationship before the sex happens.
To leave hints that you think of them sexually, trying as well to turn them on at the forbidden idea of it. To get the idea of having sex with you into their head so they believe it is their idea when it happens. That is a TRUE conquest and challenge.
I disagree. What kind of challenge is seducing anyone in a harem game? It's something you have by definition and it's not even possible to not get that. Maybe in a game with amazing writing and 1 dateable female that would be incredible realistic it would be hard but in harem games there is no tension nor challenge. In fact even tabbo doesn't exist in vast majority of them. Sometimes Lisa can mention that Max is her brother so she can't give him her virginity so he can fuck her ass instead but I wouldn't call that breaking a tabbo
Guess you have not ever seduced someone who had very little interest or never thought of you as a sexual partner before...Way more challenging than dosing his beer with Salt Peter or stealing his wallet and taking pictures to blackmail him are.
BDSM and how it relates to this none game but VN now because you no longer have any choice in the mater.
BDSM = bondage, discipline, dominance and submission, sadomasochism.
Bondage, what Eric does to Ann, Kira bondage pics and Ann in the movie #2.
Discipline = all the spanking in the game.
Dominance = What Eric did to Ann and what Kate does to Alice and now Alice does to Lisa and Max through blackmail.
Submission = What Ann dose for Eric and what Lisa does for Max and now Alice through blackmail.
Every element of BDSM is now in this VN.
Well he hasn't included the whips and stocks or the more advanced actions of the genre....
But can they be that far away?