Sex 2 has the same basic premise as its predecessor, which is easy to deduce from the game's title. It's all about engaging in the titular pleasurable activity, and doing it in various "creative" ways. Unlike the first Sex, there is only one girl in Sex 2: Ayaka, the cute flower-raising character from Satyr, another game by the same company.
Comments are excessive.
2. Tsukikomori 晦  Banpresto
A follow-up of sorts to Gakkou de atta Kowai Hanashi. The protagonist (default name Yoko Maeda) is currently not in school due to spring break. Her grandmother's seventh death anniversary (a uniquely eastern custom which is celebrated on the day of an individual's passing) has come, and several members of the family have gathered. In observance of the day, six of the family members each tell a different horror story. In addition, there is also an introductory scenario which can change based upon choices selected.
Not hookable so did not even try it.
3. Ginga Ojou-sama Densetsu Yuna FX ~Kanashimi no Siren~ 銀河お嬢様伝説ユナＦＸ ～哀しみのセイレーン～  Hudson Soft 1 2 3 4
The third game in the Galaxy Fräulein Yuna series, Kanashimi no Sirene picks up where the last game ended. After having successfully saved the Earth, Yuna and her new friend, the ever-hungry female android Yuri Cube, return to their normal high school life - or so they think. Because her old enemies will do anything to destroy her, including wrongly accusing her of world domination plans. This draws the attention of a highly ranked female intelligence officer of the Galaxy Alliance, who operated under codename "Sirene" and who pretends to be an exchange student in the Shiraokadai High School, while her true goal is to arrest Yuna...
Luckily there is a good English review
Merry Go Round is set in Yokohama, in year 2197. The city has turned into an international megalopolis, where crime prospers, and where justice is pursued by lone vigilante fighters. The hero of the story is a private detective named Brian. The first case is about an assault on a prostitute in the brothel "John Wayne". Further investigation reveals that the assault is connected to other cases, some of which involve dangerous biological experiments. With the help of the policewoman Akane, the bounty hunter Ridley, and others, Brian begins to gradually see the whole picture...
There are two English reviews including mine.
A terrorist organization known as Slave Dog poses a threat to the entire world. Steel Fox is the name of an all-female special squad, highly trained in counter-terrorist combat. Assisting them is the independent, state-unbound corporation Neo Logic, which produces assault suits -basically giant robots with their own heavy weaponry, which can be navigated by a skillful pilot. The young female pilot Rei from the Steel Fox is sent on a decisive mission, codenamed "Night Slave" - an assault on the terrorist base.
Game has multiple English reviews.
B-Ko is a princess from a magical dimension, who is having a vacation on the earth, masquerading as a student in the Catholic St. Rapahel High School. This peaceful (and pleasant) time-passing ends when the evil witch Saprinu appears in our dimension and attacks B-Ko. Saprinu's demonic plan is to steal precious energy from female virgins. Now it's time for B-Ko's faithful servant, a young man known as Alpha, to "intercept" the poor virgins (using his own methods), before they fall prey to Saprinu...
There is an English review.
Mujintō Monogatari 3: A.D.1999 Tokyo is similar in concept to the two previous entries in the series, being a "survival life" simulation game. However, its setting is quite different: rather than getting stranded on a deserted tropical island, the protagonist travels in subway when a terrible earthquake occurs. Climbing out of the underground tunnels, the hero discovers, to his horror, that Tokyo has been nearly destroyed and deserted. Teaming up with other survivors, the protagonist has to explore the ruins and stay alive.
The masterpiece of the series trilogy. The game does not disappoint its fans as gameplay part got even more difficult. Shifting events from generic some island to post-apocalyptic Tokyo created much more opportunities for story development and heroes empathy. It's a long, serious and eventful game aimed at hardcore players.
9. Banana Club Mania バナナ倶楽部まにあ  Xing Entertainment
During Christmas, a virgin guy got a free ticket to the Banana Club. Once there, he can choose from 3 girls for custom play with him. Depending on how he plays, the girls might become his steady girlfriend.
10. Chrome Paradise クロムパラダイス 銀白色の楽園  Acid Plan
Space colony 30th century. High school student Shin Kanzaki has to pay for studies himself and he's constantly looking for well-paying part-time jobs. He applies to participate in experimental colony simulation program that simulates the life in the second half on 20th century. What a shock - there people have to carry their luggage themselves! And the hero becomes the delivery boy.
Just from the setting you can guess what this game is going to be. Developing such a complex setting just to show everyday life and quite forget everything about the space stuff. The whole game is like that. 70% of it are gags that have zero meaning for the story. So there are 6 transport companies and we deliver stuff with occasional events on the way. There are girls from each of the company and to gain their attention you need first to work hard for the said company... The number of sub-characters in this game is among the highest. So if you can't stand coherent stories and just love to meet dozens of weird people while making deliveries and waste time on not funny gags then you're in the 0,0000001% of humankind and this game is just for you.
11. Liena Crystal - Adventure of Liena リィナ☆クリスタル  Colossus
Europe, 1895. Heroine Lina and Pes were on the way back home from the spring festival when a strong light hit both of them. Pes became a dog and Lina became a futanari. Shall they succeed in getting back to original form?
Keenetic novel focusing on humor. This work hardly makes it to two hours, maybe for a slow reader. This is one of the litmus works that marked the transition from high and moderate difficulty to extremely easy relaxation ones. 1996 year was the time when moe games came to fashion and this work is seen as an odd one out and it was a brave move. In the end it's a fun little story with vivid sub-characters and the only drawback of volume.
Hi, I'm Makoto Mizuhara, a normal High School Student from Shinonome High School. I've been working on a special science project for the upcoming annual school festival! It's a device that supposedly can transfer living matter through a dimensional gate... sorry, not that you'd probably understand what that means! I built it based on a theory I read, and I hoped it could move other people through time and space!
The night before the festival, I completed the machine and took it for a test run. Very excited, I hoped for any kind of sign that the machine was going to perform the experiment correctly (I've tried this three times already). What I got was something I did not expect at all... I saw... a woman?
Game is localized and has English reviews.
13. Sotsugyou Ryokou 卒業旅行  Apollon Create
A guy went on a graduation trip to a ski resort with three of his friends. Once there, he has four quick days to chase after 7 girls and 1 guy.
3 nights and 4 days are given to win someone's heart. There's some comedy and decision making in first part and the chosen person H events in the second part. For me game's mostly notable for an ability to pursue a guy - that does not make the game yaoi since it's of totally normal style, but places a landmine.
14. Akai Suishou no Hitomi 赤い水晶の瞳  Fairy Dust
Hero is a detective, but he has so few requests that his main occupation is a part time work at sports accessories store. In a gym equipment room he discovers a hanging mummified corpse. According to victim's older sister Makoto, her brother was alive just a while ago. Together with Makoto you are to discover the truth behind this suspicious case.
Quite a light ADV detective work more about girls than about mystery. Hero investigates hand by hand with a partner girl and it's possible to choose between two assistant girls. There are many other girls on the way as well. There's also strong NTR presence.
"Dare You Match Wits With the King of Demons?<
IN A MURKY CASTLE, IN A HIDDEN WOOD, A HOST OF DIABOLICAL MYSTERY AWAITS YOU.
Long ago, Rodvydel Castle fell into the evil grasp of Zeddas, who worked his foul spells upon the place to hide it from mortal eyes. Now you must walk these same haunted halls, trying to undo the harm this demon has wrought. Can you restore the castle? You must pit your own cunning against the fiend's treachery to unravel the sinister mysteries of this place.
But beware - the King of Demons keeps a warm place ready for those who would meddle in his affairs!
ABANDON HOPE, ALL YE WHO ENTER HERE!
EXPLORE the labyrinthine corridors of the woeful castle DISCOVER clues to the whereabouts of keys and other mystical items that can help you in your quest SOLVE the nefarious obstacles created by Zeddas to foil would-be heroes SEE this interactive tale of horror unfold before your eyes in QuickTime movies and fully-rendered 3D graphics HEAR the eerie CD-quality music and sound effects that set the mood for this haunting adventure. FEEL the dread only Zeddas can inspire!"
There are multiple English reviews.