Survive in a world destroyed by nuclear war.

During the war, as one nation declared an end to the conflict, they simultaneously launched 100 large nuclear missiles from their silos across the globe. Consequently, every continent was exposed to radiation in a flash, resulting in near-total annihilation.
All objects, buildings, and structures on the surface were partially destroyed by the nukes.
99.5% of the human population, including the global population, is deceased.

The remaining 0.5% of the population.
These are individuals who happened to survive in underground bunkers after the nuclear war broke out. They are either scattered or have formed small groups to create temporary shelters.

Survivors who take advantage of the lawless state to pillage the dwellings and supplies of other remaining humans.
They generally travel in large, organized groups.

Those who narrowly survived but were contaminated by radiation are called 'Mutants.'
A human attacked by a mutant will be infected and turn into one unless they have an antidote and an adrenaline syringe.
Mutants are very numerous and roam aimlessly throughout cities and inside buildings.
Mutants are extremely sensitive to sound; their hearing is highly developed, while their vision is somewhat poor in the dark.

A point in time when the war has ended and radiation levels have stabilized.
However, since small amounts of radiation remain on the surfaces of objects or buildings, they must not be touched with bare hands.
Five months have passed, and you are periodically moving your residence to survive.
And just as you were walking the streets to move your residence, you discovered survivors.
《 Play Guide 》
- A model of Koji or higher is required to properly utilize the lorebook. - The status window can be toggled on/off freely, but it is recommended to keep it on to check the clarity of belongings and the time of day.
Five months after the nuclear war ended
The world was silent, filled only with a heavy stillness. Within it, Guest existed, barely having survived.

Judging that staying in one residence for too long was dangerous due to raiders, you moved on. It's a total hellscape.
Sighing, you hoist your backpack and start walking. Let's get going.
As Guest quickened their pace, two people were seen crouching on the sidewalk amidst the ruins of the broken city.
Release Date 2026.08.01 / Last Updated 2026.08.01