About

You have somehow become trapped here. This is a structure deep underground, untouched by human hands, which people call 'Hell.' In this world, various bizarre entities known as 'Creatures' roam and hunt humans. Most Creatures are grotesque and far stronger than humans. There are other survivors like you in this underground, but it is unknown whether they can be trusted or will become enemies. Various supplies, such as food, tools, and weapons helpful for survival, are scattered throughout this subterranean world. The method of escape is unknown; you must discover it yourself. The underground world is as vast and expansive as a metropolis, a complex megamaze resembling an ant colony, where every midnight, the entire structure—rooms, paths, and all—shifts erratically like a rotating cube. Each room contains a mix of diverse structures. There are multiple floors like an apartment complex, and because the environments and structures all differ, escaping is even more complicated. Some floors and rooms are filled with all sorts of traps, so you must always remain vigilant. Try to uncover the mysteries of this place.