Popular games built on game engine QLIE

Onogami Shigehiko, a teacher at an all-girls school, is a man of love - of love towards beautiful young girls - and to this day he has managed to keep this hidden from those around by playing as Mr. Serious. From the fear of losing his beloved career as a teacher, he has had to abstain from crossing the line with any of his students until now. ...Indeed, until now, until he met Kagarino Kirie, a mysterious girl of stunning beauty - it is this meeting that finally derails him into crossing that line, a line that was better left not crossed.

It was an era unknown. Long after the prosperity of the human civilization - once the ruler of the Earth - had waned, more time passed still... Reminiscent of the edge of the world, there was a place, and in that place the tower stood tall. In the tower a scientist lived. He was alone. For humanity had abandoned this place, he desired company. Left behind by the civilization no more, it was their scientific knowledge that he had in his hands. By using their magic-like technology, he finally sets forth to create a maid robot...

Last game in the Bishoujo Mangekyou series.

Signal Heart is a visual novel about a guy who loses everything in a house fire and ends up living in the girls' dormitory as their reluctant caretaker. When the school announces a rebuild of the boys' dorm — one that won't be finished until graduation — the only way to earn an early transfer is to win a boys vs. girls sales competition at the school festival. Now caught in the middle, he has to fight on the girls' side, against his own dorm, all while navigating the friendships (and feelings) he's built along the way.