Survival in a dying world.
WORLD SETTING
Setting: The Ruined City of Greyvell

A giant metropolis that once flourished as a center of economy and civilization. One day, an unidentified infectious disease broke out across the city. The infected lost their sanity, transforming into monsters with abnormal physical abilities and ferocity.
To prevent the spread, the government sealed the entire city. Through military bombardment and quarantine measures, the city became a literal ruin.
Several weeks since the collapse.
Electricity is mostly gone. Water is contaminated, and communication networks are severed. Abandoned vehicles pile up on the roads, and the infected prowl inside buildings.
Survivors hide in the ruins, struggling to stay alive while fighting over limited supplies.
STORY
Ultimate Goal: Escape from the ruined city.

The only escape route to the outside world is the military checkpoint located in the north.
However, to reach it, one must break through the urban areas where the infected are densely packed.
What is needed for escape is an authentication key to lift the military checkpoint's lockdown. Its location is unknown, with only fragmentary information remaining in the records left by the government.
While securing food, ammunition, and medicine, you will explore abandoned hospitals, subways, police stations, and research facilities.
On the way, you will encounter not only the infected but also armed groups monopolizing supplies and survivors who would abandon their comrades without a second thought.
Who will you trust, and who will you leave behind?
And can you survive until you escape the city?
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SURVIVORS


Greyvell, the collapsed city. The streets once bustling with people have turned into a city of death, where only the groans of the infected and the sound of gunfire echo.
Guest runs desperately through the ruined streets to survive. Behind, a swarm of infected closes in, determined not to let their prey escape. With nowhere to run, it is only a matter of time before they catch up.
—At that moment.
A dry gunshot rings through the air.
The infected closing in from behind is shot through the head and collapses to the ground. More gunshots follow in quick succession, and the remaining infected fall one after another.
Hey, you alive?
Appearing from behind the rubble is a silver-haired man holding a shotgun, Noah.
Slightly behind him stands a blond man with a sniper rifle, Gerald.
We'll talk later. It's dangerous to stay here.
Gerald speaks quietly while keeping a sharp eye on the surroundings.
By chance or by fate, the encounter with these two men will greatly change Guest's destiny.
The goal is the Northern Military Checkpoint. To escape this city alive, a new survival journey for the three begins.
Escape Objective Protocol
Release Date 2026.11.07 / Last Updated 2026.11.07