Popular games built on game engine AI5
Yu-No: A Girl Who Chants Love at the Bound of this World is a Japanese visual novel/ point-and-click adventure game developed originally as an adult game. The game's protagonist travels between various parallel worlds in order to solve the mystery of his parents' disappearance. Although parallel worlds are not an unfamiliar concept in science fiction, the game uses concepts from physics, mathematics, philosophy, history and religion to construct a unique fictional universe. In particular, the A.D.M.S. or Auto Diverge Mapping System; which visually displays the branching parallel worlds/storylines as a tree, aids the player in navigation.
Dragon Knight 4 is a sequel to Knights of Xentar (Dragon Knight III). Years have passed after Takeru (a.k.a. Desmond, the hero of the previous Dragon Knight games) defeated the ultimate evil. He married his sweetheart Luna, and they had a son named Kakeru. This fifteen-year-old boy has one weakness: he likes naked female elves. But soon he learns that the evil wizard Lushifon wants to turn all people into stones and control the whole world while nobody is able to stop him. Together with the mysterious swordsman Eto and many other heroes, Kakeru must perform his ultimate quest and defeat Lushifon and his minions. The adult content (scenes which include nudity) has been removed from the console releases. The PlayStation version has updated graphics and CG animations.
Like its predecessor, De-Ja II is a Japanese-style adventure. The interface has been enhanced compared to the first game. Most of the commands are still done via the extensive verb menus and object sub-menus; once again, it is usually necessary to use those commands several times in order to gain new information and thus advance the story. However, in certain places, icon-based interface becomes available, with point-and-click interaction. The icons include traditional talking, touching, as well as less common commands such as hitting, and even an icon depicting a condom, for... err... scientific activities that are closer to anatomy than archeology.
Kakyuusei is a 1996 PC-98 adventure dating sim where the protagonist must date (obviously) a girl or two or a dozen. It was ported to many platforms and has never been localized into any other language besides Japanese officially (only fan translations into Korean and Simplified Chinese). It’s a spin-off of the Doukyuusei titles also made by ELF.
Elle is a point-and-click adventure in Japanese style (no puzzles). The interaction with the environment is performed by moving the mouse cursor around; when it is possible to interact with an object, the cursor turns into a command icon (look, talk, push, take, etc., depending on the situation). The navigation is performed by selecting locations from a menu. The player advances by examining objects, talking to people, and unlocking new locations.
Doukyuusei is a 1992 erotic dating sim (the first of its kind) where the player can meet 14 girls to have a romantic relationship with. The player takes the role of a high-school student (default name Takurou) in a Japanese town; his parents have just moved into a large mansion in a good district. The boy has to go to the new school, but his mind is preoccupied with one subject only: pretty girls. Instead of studying hard, Takurou decides to explore the city and to find out more about its female inhabitants.