【PC】紫影的索纳尼尔 ～何等美好的记忆～｜紫影のソナーニル -What a beautiful memories-

作为ライアーソフト的人气作蒸汽朋克系列第五作的本作，是混杂了现实与幻想的充满谜题的神话传说。

因为不明原因的大灾害而化为了废墟的旧重机关都市纽约。然后，以这谁也不知道的地下世界、在本应消失了的却仍然延伸着的紫色天空的纽约为舞台，以两个少女的视角来展开故事。

故事主要描述的是，丧失了记忆的少女リリィ在化为了地下的异形的纽约中的冒险。

她将会一心抱着“以紫色天空的尽头为目标”的使命感，与谜之少年A一起在充满危险与谜题的世界中经历。

在旅途中，她们将会与各种人相遇并了解它们的想法，还有不知为何地被怪物追杀等，如此走在一波三折的道路上。

到了最后，等在少女的终点的会有什么吗？

与探寻地面上的纽约的少女有什么关系？

还有，为什么纽约会成了废墟？

各种谜题，随着少女们的故事而揭开——

(以上转自KF)

The year is 1907. The 20th century is still young.

This is a world that experienced a 19th century very different from our own. A world of innumerable steam-powered Engines. The unnaturally rapid development of this steam civilization filled the air with smog, robbing humanity of the blue skies they'd once known.

There is one place in particular where the sky is darker than anywhere else: the ruins of the Engine city New York, perpetually shrouded in grey clouds and polluted rain. Five years ago, a mysterious disaster known as the "Great Disappearance" reduced this entire metropolis to a deserted, crumbling wasteland. Sealed off from the world by the United States government, it stands in utter silence. Not a single soul now walks its streets.

But today, a woman named Elysia quietly sets foot inside it - guided by a singular purpose. Her destination: old Manhattan, said to be the epicenter of the catastrophe.

Unbeknownst to her...

There is a place said to be the city's "Underground." This is an enormous subterranean realm, permeated with a dim purple light. No one on the surface world knows of its existence. In this place, the Skyscrapers that crumbled five years ago still stand tall; but their forms are warped and twisted. "Underground New York" is a place of black and violet shadows. A prison with no exit. And beneath its unnatural "sky," the men and women who vanished five years ago still exist...

Cowering in fear of the seven monsters known as the "Messengers."

Suffering terror, agony, and death at the hands of the "Messengers."

They linger on in this twisted underground city, as if waiting for something.

A girl named Lily sets foot in this place, her mind devoid of memories. There is only one thing she's certain of. She doesn't have a reason. She doesn't know who or what awaits her. She doesn't even know why she feels this way. But even so, she's absolutely certain.

"Manhattan. The ends of the violet sky."

"I have to go there. I'm the only one who can."

─The girl sets off for the tower of violet shadow looming far in the distance.

─With every step, she finds the shades of those yet to fade away.

─She isn't aware of the tears she sheds.

[From MangaGamer]