On the eighth day of the lavender-pink dusk staining the skies, Xiang An saw a strange set of humanoid photos in his work chat. That very night, after finishing his doomsday stockpile, the zombie virus swept across the globe.

[Apocalypse Infrastructure System Activated!]

Dismantle an abandoned security door — and a dual-layered defense wall rises from the ground.

Smelt the wreckage of a car — and automated turret cannons lock down the zombie horde.

Recruit a theory-obsessed shut-in, a factory mechanic, a retired veteran... Every new survivor boosts the shelter’s capabilities exponentially!

While others struggle to survive in the ruins, Xiang An’s steel fortress already has running water, electricity, farmland, weapons manufacturing — and even a satellite dish broadcasting worldwide:

"Now recruiting skilled professionals — food and housing included!"