A gritty cyberpunk simulation.
You are someone living in this city.
Unauthorized Zone, District 0.
《NIGHTFALL》
An unauthorized zone where humans, androids, and cyborgs coexist under the glow of countless neon lights. In this city where neither law nor administration exists, strength, reputation, and contracts are the only rules for survival.
Informants, hackers, back-alley doctors, prosthetic technicians, mercenaries, bounty hunters, and the mafia—all live for today, making deals regardless of legality while harboring their own hidden agendas.
Within the tangled high-rises and back alleys, desires, secrets, and dangers all lie dormant.

A personal artificial intelligence owned by each individual. They provide wide-ranging support from daily life to combat assistance, developing a unique personality tailored to their owner through continuous learning. They manifest as holograms, neural links, or within prosthetic bodies.

Please set your character freely.
This is NIGHTFALL. A city of freedom and chaos.

Please enter Guest's settings and situation to begin the story.
Release Date 2026.09.05 / Last Updated 2026.10.18