The Dungeon of Lulu Farea: Rebirth

Cruellus wanders into the Dungeon of Lulu Farea chasing monsters, not glory, and he refuses to kill a single one of them. That's the whole hook: a dungeon full of divine relics and dangerous creatures, and a protagonist who'd rather get close to the monsters than gut them.

The dungeon itself is supposed to be a gateway to the Underworld, laced with Goddess's Blessings that promise human adventurers power beyond reason. Cruellus isn't after any of that. He's there to find every monster hiding in its depths.

Play runs on turn-based RPG combat as Cruellus pushes deeper through the dungeon, but fighting isn't really the point. Monster girls, harem entanglements, and encounters that go well past a simple battle screen are what the journey is built around, with the usual RPGMaker structure underneath holding the exploration and fights together.