Is this game good? Like are animations good? Story etc...
No. The Graphics are good and the Milf is bangable (fuckable). But the story is very cliche and unoriginal in many respects. I don't think the person who made this game was aware of how the story was proceeding. Of course, in porn, story doesn't matter much.
However, the gameplay is a NIGHTMARE!
I think this could had been done with a visual/virtual novel without all the clicking stuff and it would improve immensely.
I think the author of the game wanted to make a horror mystery sort of thing with sex.
I think it could had been done better. And part of what makes it not work so well, if there are scenes where the mother is having a fun time with her son (without sex) and it kind of makes her seem like not such a bad person. So when you see her act like a total bitch, it completely ruins her character of how she is seen in other scenes.
Kind of like Luke Skywalker in the Last Jedi.
If I could redo this story at minimum I would offer more conflict for the mother and show her not at all wanting to drag her little boy into it.
Probably start off with her being content on sacrificing her older son, because she never liked him, his sexism is unnerving to her and she has always loved her younger son and sees her older son as a threat to her younger son.
So she is constantly seen as being reluctant when it comes to choosing her younger boy. Then she breaks up in tears twice, first when she is trying to fuck her son in bed, but when she knows what would happen she immediately stops and runs off. She is so traumatized with the idea that she'll have to sacrifice the son she loves that she forgets she didn't finish the job. When she attempts a second time, she is again confronted with her reluctance. She explains that she'll die and she doesn't want to do anything to him. The one point of the trip was to sacrifice her older son and then spend her life with her younger boy. She then falls to her knees crying saying she is in love with her little boy. This will then depend on you that you can walk off and she'll die or you can comfort her, leading to her passionately making love to you. Realizing that she just put your life in jeopardy, she tightly places her hands over her mouth with her eyes bulging open in absolute terror. Then you start hearing Cthulu trying to get your mother to kill you, it then depends on what you say to her that will confirm the outcome. If you help her resist, then both of you are confronted by Cthulu and if you show that your resolve is strong enough, then Cthulu will vanish, but in the process takes the lives of the dad, older brother and the bimbo. You are then embraced again by your mother and then the good end.
Of course I would have it done more like a visual novel, because you can have mystery and Horror in a visual novel as noted from Doki Doki Literature Club.