When the gray fog descends and civilization comes to an end amid decay and collapse, the last fire of mankind will be carried by a mobile steel fortress.
In the near future, a catastrophe called the "Grey Fog Catastrophe" sweeps across the world. An unknown spore invades the atmosphere, causing animals and plants to mutate crazily, and turning infected humans into bloodthirsty "corruptors." The surface is reduced to ruins, resources are depleted, and survivors struggle in despair. Underground, a handful of "Ark Cities" have sealed the technological fires of the old era, becoming the legendary last Garden of Eden.
The protagonist Lin Chuan was trapped in an abandoned factory as soon as the disaster broke out. At the moment of life and death, he awakened the "Civilized Fire System". This mysterious system gives him an incredible ability - scanning ruins, obtaining blueprints, building and upgrading his own mobile fortress "The Rock".
Starting from a piece of rusted iron sheet and a twisted steel bar, Lin Chuan struggled to build the cornerstone of survival amidst the roar of the corruptors and the covetousness of the plunderers. With each upgrade of the fortress, from a simple iron house, to an indestructible steel fortress, to an interstellar carrier equipped with an anti-gravity engine, the "Rock" is not only his shelter against the end of the world, but also an ark for him to explore the truth of the disaster, gather the strength of survivors, and ultimately lead human civilization to the sea of stars.
This is an epic construction journey from scratch, and it is also a magnificent hymn about survival, hope and the inheritance of civilization. In the desperate apocalypse, Lin Chuan will use a fortress to carve a path to a new era for mankind.
