A Family Venture is brother/sisters, son/mother, cousin, aunt. So far no action between daughter & mother though. Sister/sister is likely but it hasn't happened yet. No lolis, but in their teens.
Young Again is brother, sister, mother- no action between mother & daughter. Technically father & daughter too, but father is reincarnated as a young guy, so daughter doesn't realize it.
Proud Father is daughters, aunt, sisters, daughter friends, mother/daughter action too. Whole family has sex with each other. Loli daughters included.
Such A Sharp Pain is father/daughter, some mother/daughter, aunt/niece, uncle/niece- including loli niece/daughter sex.
Parental Love is like Proud Father- all family fun. Loli daughter & friends included.
Single Again is father with adopted daughter and step-daughters. Some sister action, and it is on going, so sister/sister is coming.
Midlife Crises is father, daughter, niece, aunt. Mother and daughter too, but mother doesn't actually realize it's her daughter. Including loli niece where the aunt helps out.
My Best Deal is son with mother, brother with half-sister, twin sister with twin sister is likely to happen too. There is a twin lesbian fantasy sequence but it doesn't happen in the "real world". Mother with daughter seems like a possibility in future updates.
Foreseeable Family is father with daughter through mind control and possession.
Family Faring is father with daughter, but after the new remake people are abandoning the game since it was watered down.
My New Memories is leading to father with daughters, but the dev doesn't want the younger daughters involved. It's a frustratingly slow burn, so only middle aged brother/sister happens.
Guilty Pleasure is brother with half-sisters, aunt/niece and the mother is being initiated. No father.
Radiant is father with teen triplet daughters. Sister/sister interactions are on the horizon I hear. Slow burn.
The Assistant is adult sister/brother sex, teen sister with adult sister likely but not yet, mother with daughter also likely but not yet. No father.
My Sister's Devious Plot is probably abandoned but the loli sister is trying to seduce older brother, while also trying to build him a harem with her friends & others. I liked where it was going but I think the dev got spooked after Westy.
16 Years Later! is estranged father with 3 adult daughters. There is a love & dark path. The dark path gets the most action faster.
A Summer Scent is brother with twin sister.
Apocalypse v0.37a is mother/son, mother/daughter, sister/brother. Plus a hell of a lot of others along the way (including loli).
It's Not A World For Alyssa is father/daughter, brother/sister, and anyone that tricks or blackmails the female protagonist into sex. No mother. Kenetic novel.
Raptus is mother/son, mother/daughter, brother/sister and a whole lot of violent rape/murder.
Malignant is father/daughter, including loli & teen daughters. Also, expect brutal violence & gore, especially on dark path. Even love path is brutal.
Burned is brother with loli sister. The MC's friend is in a lesbian relationship with her own loli sister too.
The Sunset Fairies is uncle with almost loli twin nieces, he has illegitimate loli daughters that will eventually join in on the fun. Slow burn game.
Corrupted Love is father with loli & teen daughters. The mother is currently being seduced but hasn't voluntarily participated yet. The daughters haven't interacted with each other yet.
Bad Hero is father with long-lost teen daughters. Mostly just a goofy game but some of the scenes are actually pretty hot.
Rational Chaos is father, loli & teen daughters, mother, step daughters and some sister/sister action during threesomes. Great animations with fluid movements but the game was built for the sex scenes, not the story.
The Guardian is father with loli & teen daughters, sister/sister action, mother daughter action too. The mafia story gets convoluted quickly though.
Tales From The Unending Void is brother with sisters mostly. His aunt turns out to be his mother too, which makes his cousin his sister as well. They all have sex, but no action between sisters or mother/daughter yet; it's heading that direction though.
Our Island is father with loli daughters, loli niece, aunt/niece, adult brother/sister, light mother/daughter, some sister/sister. However, the father/daughter scenes haven't progressed to actual sex. The direction the game went in was very promising, but it is the same dev that announced he won't be including any loli interaction in The Foster's 2 after the Westy incident. That probably means he won't continue with Our Island or will walk back those relationships. (quick note- there is 1 scene with loli sex at the hotel if you DON'T stay with the drunk sister in the bar. Yes, he rapes a loli, but it's all okay since she liked it...)
The Daddy Plan is father with teen & loli daughters. The daughters are seducing their father one by one, starting with eldest first. The story is on-going and the first 2 daughters are in a sexual relationship with him already. The youngest daughters are plotting their seduction now though.
Not a complete list, but these are all games I've played that I liked. I figured a brief description of what to expect would be helpful. I hate starting a game based off of the description only to find out the synopsis exaggerated or was misleading about what the incest actually was.
