So Poor I Have to Scavenge, and You Question My Homemade Military Prosthetic Arm?

[Black Tech] [RimWorld] [Conquest]

Black-tech fiction in the early stages, then leading the Dragon Kingdom into the space age ahead of everyone else.

After transmigrating to a parallel world, Su Bai finds himself in a complete mess from the start: penniless, with an empty house and a mountain of debt.

His golden finger turns out to be the RimWorld tech tree!

While others need national laboratories to develop technology, Su Bai just needs to flip through blank paper.

While others need sterile workshops spanning tens of thousands of square meters to build prosthetics, Su Bai only needs a bicycle! A few scrap pipes and old gears, a little welding and hammering, and a cybernetic grandpa can walk briskly again!

Late that very night, a military vehicle with a red license plate quietly pulls up at the village entrance: "Comrade Su, could the army use those steel pipes of yours first?"