Start Dominating the Doomsday by Upgrading Items

Liu Wu traveled to a post-apocalyptic world that had just experienced a nuclear war and entered a nuclear winter, where mutant creatures were rampant and predators were rampant.

When he was almost in despair, he unexpectedly discovered that he had the ability to create items and upgrade them.

Resist plunderers, establish an industrial system, build a mechanical army that roams the world and dominate the doomsday!