Shaper of Metal Post-Apoc Progression LitRPG

Given the chance to unlock System powers a decade after being dismissed as an ordinary human being, how could Jack refuse? But nothing comes without a price, and as Jack is about to discover, miracles are sky-high. A former military pilot, Jack Laker has faced the horrifying monsters that took over most of planet Earth. Against all odds, he survived one of their endless raids into humanity's territory and even saved a life or two in the chaos. When he acquires metal manipulation abilities, though, all the power to meet the bastards tit for tat is suddenly within reach. He just had to build and [level] it up, bit by bit, from scratch.