Engineer 041 woke to the taste of copper and the smell of burning coal. The sky was the color of a bruised plum, thick with the heavy particulate of automated progress. Around him, the chorus of the factory played its industrial symphony.

But the silence at the perimeter was a lie. Beyond the reach of the bright electric lamps, in the choking smog of the pollution cloud, things were moving.

He heard them before he saw them. The skittering of chitinous legs on stone. The biters were coming, drawn to the very scent of his progress [2].

With a swipe of his hand, a ghost image of a laser turret wall materialized in the dirt. Instantly, construction robots swarmed from his personal port [2]. They buzzed like angry steel bees, carrying components and welding them into reality in a shower of white-hot sparks.

He walked the line. He loved the split-second precision of the fast inserters [2]. Their blue mechanical arms swung in perfect, neurotic arcs, plucking green circuits from one belt and placing them onto another with the absolute certainty of mathematics [2]. There was no waste here. There was only the beautiful, terrifying geometry of expansion.

A second later, the darkness was illuminated by bright red beams of concentrated light. The biters melted into the soil, screaming in a frequency that was ignored by the machines.

The file sat in the directory, a clean Factorio.v1.1.72-GOG.zip [1]. One click, and the sequence initiated. The simulation did not just load; it exhaled.