I guess it depend on who the main character is. I'm not too interested in being an observer, but if I can play the girl who is going through the literal hell then I'm all about it. I don't really care about gender/sex variances.
If this is your case, then you're going to love the game "OneNightワイフ♪ 製品版" as you play the role of the cuckolded husband.
In this game, the husband and wife love each other but disagree about having children.
His wife, on the other hand, wants to have sex to satisfy her secret pleasure, which she doesn't dare admit to her husband for fear of his reaction.
As a result, she refuses to have sex with him because she doesn't want to get pregnant.
In the evening, she sneaks off to a club and her husband goes looking for her when he discovers she's left during the night and sees her enter a dubious club.
On entering, he asks where his wife is, and will meet women who are cuckolding their BFs or husbands, and will have the opportunity to have sex with them and even invite them outside the club.
When he meets men, he'll be able to listen to what they've done to your wife, triggering a scene that recalls the experience.
Towards the end of the game, you'll finally find your wife, who doesn't recognize you and agrees to have sex with you on condition that you wear condom (she asks all men to do this, except for sodomy).
During this experiment, she won't recognize her husband and will say that his body is more muscular than her husband's and that his dick is bigger (even though he is her husband lol).
During sex, the condom will break and you'll have the choice of confessing or saying nothing.
Either way, she'll realize it and panic, but if you confess, she'll find out you're her husband... if you go on without telling her, she won't know and you'll play the game of the lover with whom she's had a child.
That same evening, she'll insist on having sex with her husband so that if she falls pregnant, he won't suspect her, especially as she's always refused to have a child without explaining why.
(The husband, aware of the situation, plays along and sends her a message to force her to go back to the club in order to humiliate her even more and blackmail her).
He continues to make her believe that he'll report her to her husband if she doesn't come, and she doesn't want him to know that the child isn't his, so she reluctantly plays along.
She only discovers it's the husband after a while, and apologizes while he lectures her.
Then she never goes back to the club, and at home, she keeps saying sorry when spoken to.
At the same time, she can continue to be cuckolded by other women.
Frankly, it would be nice if this game were updated with more content, because the idea is really excellent and it's rare to be able to take revenge on your indifferent wife in this kind of game.
One of the women wants to leave her husband for the MC, but he tells her he can't divorce his wife, without explaining why...
It would be great if he punished her by leaving her with another... but then again, I don't know if it would be punishment because she could easily find another guy from the club because they were all crazy about her...
I must say, his wife is really beautiful!