Apocalypse: I Have a Monster Factory

[No transmigration or rebirth, sound logic, apocalypse building, interstellar war, monsters, and mechs!]

A century after the apocalypse, the surviving humans built walls a hundred meters tall to keep out radiation-mutated creatures.

Wang Shuo inherited a machine shop left behind by his father.

Just as the factory was about to go bankrupt, he loaded Monster Factory.

[Starbone Ripper] [Stellar Beam-Focusing Lens Cannon] [Concept Erasure Beacon]

Weapons beyond human imagination were being shipped out of a place called Monster Factory.

The Federation's top brass were dumbfounded.

"You're saying a machine shop developed space weapons for ground strikes?!"