Miles Edgeworth's adopted father, Manfred von Karma. The extent of his psychological abuse towards Miles is implied rather than stated, but seeing as he manages to turn Miles into the opposite of who his father was, some must have been involved. If that's not enough, letting Miles believe throughout his whole life that he had killed his biological father, and seeing him suffer from nightmares for fifteen years while actually being the culprit, has to count. He wasn't much better to his biological children, either; his daughter Franziska came out as an egomaniac Amoral Attorney, though she's gotten better since.
Phoenix Wright: Ace Attorney – Spirit of Justice gives us Queen Ga'ran of Khura'in. While her husband was much more loving, the Queen neglected and verbally abused her adopted daughter/niece Rayfa and even went so far as to call her worthless before implying that she'd be willing to have her killed.
Matsuri, Aoba and Jun's parents in Family Project. Jun's are probably the worst. Her father molested her and her sister since they were small children for years until a neighbor noticed and they got taken away. Their mother? Envious. So she starved them for days on end and then would feed them horrible things. Like flat out poison to Jun, which nearly killed her and prevents her from eating anything but snack bars and drinks.
Zouken Matou's treatment of his adopted granddaughter Sakura. While Zouken subjects her "only" to Training from Hell and the Matou crest worms, her stepbrother Shinji rapes her repeatedly. The twisted part is that Zouken's treatment of Sakura is a sign of favoritism because it's meant to nurture her magical potential. The only reason he doesn't subject Shinji to it is because the latter lacks that potential and thus isn't worth the effort — and Shinji is painfully aware of this. Hence his treatment of Sakura (not that it justifies it in any way whatsoever).
Sakura's adoptive uncle Kariya Matou was a victim of the same sort of Training from Hell via the crest worms, partially because Zouken liked to watch him suffer.
While really more of an Abusive Uncle, Teppei Hojo definitely fits this trope. He beats Satoko and forces her to do chores for him, threatening to burn down her beloved brother's room if she doesn't comply. It's revealed later on that he's also a pimp, and is engaged in a fraud scheme with one of his working girls (Rina Mamiya) to scam half a million yen out of Rena's father. Teppei's fate changes in each of the three arcs he appears in, and none of them are pretty. He is murdered by Keiichi in Tatarigoroshi-hen; murdered by Rena in Tsumihoroboshi-hen; murdered by Rena, Keiichi, and Shion (all together) in Tsukiotoshi-hen; and arrested by Child Services in Minagoroshi-hen.
Though she is rarely mentioned, Satoko's aunt behaved in a similar manner. It didn't end well for her.
Jigoro Hakamichi, Shizune and Hideaki's father, of Katawa Shoujo. He not only frequently insults his children, Shizune's friends and the student council, but also has refused to learn sign language to speak with his deaf daughter, and has tried for 12 years to get Shizune to learn how to speak, unwilling to accept that she is unable to do so.
Enju Ueno, the heroine of Nightshade, and her father, Kando, barely have any relationship at all, let alone a familial one; a large part of her desire to become a shinobi is to finally gain her father's approval. In every route of the game, Kando immediately disowns Enju after she's framed for a crime she didn't commit in order to avoid any potential backlash against the village, and in some routes he forces her childhood friends to hunt her down with orders to kill her on sight. To make it worse, in one route it's confirmed that he himself committed the crime Enju was accused of, although he didn't actually have any part in framing her.
No, Thank You!!!: One of the main cases in the game involves finding a little girl's missing mother. It turns out her mom had left her to die. Another case has a young man asking you to find his brother and send him home so that their mother might molest him less. Many of the main characters suffered abuse or neglect at the hands of their parents/parental figures, most notably the protagonist who's forced into a life of murder, torture, rape, et cetera et cetera as a slave... until he's promoted (to doing all that stuff as a lackey) after winning his father's version of The Hunger Games).
Grave from Symphonic Rain who physically abuses his daughter Lise just because her singing reminds him of his wife who left him for a singer.
Ava Crescentia from Sunrider had a complicated relationship with her father. A strict military man, his career often took him away from home for long periods of time, leaving a teenaged Ava to fend for herself. When he was home, he showed little affection to his daughter and would discipline Ava for her failures, constantly urging her to work harder. The Sunrider Academy spinoff shows that this discipline would sometimes involve handcuffing Ava and beating her with a rod. For better or worse, his parenting shaped Ava into the aloof and uptight workaholic that she is today, though Ava herself bears him no ill will.
Implied in We Know the Devil: Jupiter was sent to this homophobic Christian camp, likely to be 'fixed', she mentions being too slow for her mother, and in the Red Ending it's stated her mother taught her not to touch others out of politeness. These subtle signs point to Jupiter's mother being emotionally abusive and/or neglectful.
Rosa Ushiromiya has a very troubled relationship with her daughter Maria; when she isn't being extremely protective or overindulging her, she's slapping her across the face and yelling at her.
Rosa herself was on the receiving end of this trope along with her older siblings, and their father, Kinzo, makes his disdain of his own children quite clear several times in the series. And although he wasn't disdainful towards his illegitimate daughter Beatrice Ushiromiya, he deluded himself into thinking she was her mother and his beloved mistress reincarnated, leading to him raping her and getting her pregnant.