1. Jinmon Yuugi 尋問遊戯  Red Zone
Main hero who is an amateur detective is invited to drink in the bar with a beautiful woman while on a voyage. They move to her room and... the next thing he remembers is her dead body on the floor. Hero is the main suspect, but famous British detective agrees to allow him freedom of movement till the end of voyage as an opportunity to search for a different culprit. Time is limited and hero will have to use all his wits and interrogation skills to get to the truth.
Game is called interrogation play not occasionally. After elaborate introduction content is primarily interrogation. Game has multiple endings including lots of bad ones.
2. Mugen Houyou 夢幻泡影  Alice Soft 1
After a prolonged absence due to mental problems, Kuon, a young heir to a dynasty of powerful oligarchs, returns to his mansion. He is greeted by his wife, his associates, his servants, and other people who live in the huge family estate. Kuon has to continue the political work of his predecessors, but he is more interested in exploring sexual desires - his own and those of other people. But each "experiment" reveals more of Kuon's troubled past, and he will have to fight his childhood traumas and determine himself the limits of what he can allow himself to do...
Kind of depressing story of Alice Soft tackling on how to spend last days before death from incurable disease. Hmm... what to do in those last days? Oh, right... another setting as an excuse to portray extreme H scenes. Game barely passed censorship thanks to the fact that incest with the sister is not portrayed in the positive manner. Each scenario is no longer than one hour, but there are numerous endings and even more bad endings that reader is supposed to explore. Game might have some charm for someone due to the fact that "events" take place at Taishou era, but I totally could not sympathize with the setting.
For years, the days on the Earth belonged to human beings, while demonic creatures roamed the planet during the night. But humans have invented artificial illumination. In huge modern cities, nights became as bright as the days. Demons were deprived of their time on the Earth. So they decided to strike back. A powerful demonic warrior decides it's time to show the human who the bosses are... by having sex with young pretty girls in uniforms, of course!
There's no much meaning. Just choose one of three girls and play with her.
An ordinary Japanese young man named Fujibayashi Kotarou was playing a computer game at his friend's house. Upon returning home at night, he was approached by mobsters, who demanded money. With debts everywhere and without real means to earn money, Kotarou opts to work for a dubious night club manager as a host. He finds it hard to adjust to the new life style, which brings not only danger and violence, but also sexual experiences he hasn't even dreamed of before...
A host experience ADV, but unlike modern bright host otome novels atmosphere here is very gloomy, fishy and yakuza upper hand seen everywhere. Operability of the game is quite bad and animated H events make the gist of it.
The Literary Fragment is the first game in Abogado's mystery/horror/adult Detective Suzusaki series. The story focuses on Satoshi Suzusaki, a private investigator with a tragic past, which has left a permanent scar on his life and mental abilities. The case that opens the game's story is a horrifying death of an entire family in their house, at the dining table; circumstances lead to an assumption of either a ritual suicide or murder. Suzusaki, his lovely secretary Asuka, and his young friend, psychologist extraordinaire Kusanagi, have to do everything in their powers to solve the case, while the hero's mysterious past continuous to haunt him...
Suspense detective story with ties to Cthulhu myth. Story shifts into occult theme quickly. Stunning visuals, ever-deepening plot and point and click system make this game a masterpiece. Point and click is not as refined and friendly as in Elf games though. This is definitely a masterpiece, but need some guts to embrace the dark atmosphere and gore scenes. And there's even a sequel in 1996. It should have been a trilogy, but - alas - third part is never going to see the light. There is a good hentai anime that follows game events quite truthfully.
6. Shinsetsu Kamiya Ukyou 2 真説 神谷右京2  Altacia
The theme of the story is "arbitrary arrangement" introduced with the 1988 law. Sarah is the debtor that appeals to arbitrary arrangement.
Fourth installment of detective series, but actually a remake of older game. Another case based on real life case and again debt as main theme. This work has a much more user friendly systems. As usual, lots of specialized vocabulary and professional slang is used. Ukyo who takes the case is old-fashioned with some bearded jokes to tell, so it's hard to appeal to younger auditory. Case itself lacks excitement so may look boring. But if it does not scare you, it's actually the masterpiece level detective game with many endings, serious approach and story that takes priority over usual tedious detective works gameplay.
7. Doki Doki Pretty League Final DokiDokiぷりてぃリーグ Final  Great
Pink Angels who won the JPL league discover their trophy disappearance one day. Hero does not want publicity and wants to hire a private detective. But on his way there he attends a birthday party of one of team members and discovers the cup in one of the rooms...
Mentioning anything else of the plot would be a spoiler. Enough to say that there is a happy end. This episode is "final" instead of a number meaning it's more of an extra episode after the whole baseball business. Episode is the longest and does not have a game included making it a nice final.
A young treasure hunter named Asuta travels together with his faithful companion, the cute angel-like creature Mink. One day, Mink tells her "master" about the floating continent Norland. Rumors say that a golden tablet of immense value is hidden somewhere on that continent. Asuta and Mink travel to Norland and try to enter the Queen's palace. However, it seems that the people of Norland only have respect to those who are proficient in the ancient game of mahjong. Mink quickly teaches Asuta how to play the game, and they challenge the famous people (read: young, pretty women) of the country to the bloodless battle!
This time with a story. But it does not really help. The game is ordinary.
The plot involves Tomo meeting her friends Erika and Miki, only to become trapped in a magical dimension with her friends gone. Tomo must travel to various worlds in order to find them; these worlds have varied themes and settings, including an alien attack on a spaceship, a country populated by giant sexually abusive mushrooms, a realm that changes Tomo's gender, etc.
There is an English review.
10. Perfect Blue パーフェクトブルー  Ucom
Main character is a biker who has ample opportunities to have sex at home, at school and at his girlfriend's place. But as he rescues a girl from a group of men, his daily routine starts to change...
Pretty horrible game as pretty much nothing happens, but H events follow one by one for eternity. Game is mostly remembered for an intercourse scene with imouto at the start.
11. Arbeit ~Futari no Omoi~ アルバイト ～二人の想い～  Ange
A couple is preparing for a holiday together, and need money to do that. Both go for a part-time job.
You get to see both the boyfriend's and girlfriend's points of view.
There are six weekly jobs each with a different girl and possibility to confess on the friday. So it's quite close to our usual heroine routes. The multi-site system is still fresh and quite popular after C's Ware hit DESIRE. But the content is ordinary.
Branmarker 2 is a direct sequel to the first Branmarker. The heroine Shami has completed her quest, received the magical artifact known as "branmarker", and is returning home with her companion Viga. Alas, the evil sorceress Kara has other plans, so she steals the branmarker from Shami to use it for her own mysterious purposes. Shami and Viga have to find the thief and recover the artifact before hell is unleashed upon the world.
There's a good English review out there.
A young boy with spiky purple hair lies on the ground, contemplating the clear sky. He enjoys the well-deserved rest. Life is good. The only problem is... he can't remember who he is. Finally, after some efforts, he recalls his name: Luck. Profession: adventurer. He was supposed to meet his partner, a sexy girl named Sue, but instead ended up in some sort of a magical land, with zombies and angry female warriors. Soon he will learn that the land is called De FaNa, is ruled by a queen, and contains plenty of dangerous quests for an adventurer... and pretty girls for a horny teenager!
Himeya Soft accepts the Sogna challenge and issues another highly animated game. Tempo is a bit sluggish since you need to try all the variants before moving on. Characters and the story aren't too exciting, but overall a very nice work.
A young man named Keisuke falls asleep on a train and sees a dream: he is having sex with a beautiful woman whom he calls Miyuki, even though he doesn't know this woman in his real life. Afterwards, Keisuke misses the last train to the city and is stranded on a rainy day on a small, uninhabited station. Suddenly, he sees the woman from his dream, and finds out her name is really Miyuki. She tells him and her rich father has built for her and her sisters a European-style mansion nearby, and invites the young man to visit. Keisuke accepts and meets her family, which leads to unexpected and dark erotic adventures...
Characters were mysterious enough to make me play to the end. But last quarter of the game has much disturbing content. It's still a good thing that Miyuki is not subject to the overall madness, well, maybe just a little. So it's mostly an ero-centered game, but with nice mystery and cute characters.
15. Kurumi-chan Ninja くるみちゃんにんじゃあ  Studio Jikkenshitsu
A legendary black ship arrives at Minato shore shipping suspicious black chests. A ninja girl is sent to investigate the contents of the chests.
There aren't reviews and game process is just too dull. It's still nice to see as much as three attacking commands available to use at any time.