The Great Wall Watch Begins from the Start, and the Foreign Races Beg Me to Calm Down!

Invaders swept in, the land was shattered, and 1.4 billion Chinese people were slaughtered! Zhang Chen, chief designer of the dungeons for Huaxia, obtained a System and returned to the eve of the disaster. He swore to make the invaders pay in blood! The invaders are hard to kill? From the start, he builds the Great Wall Watch dungeon! He develops Dongfeng Express, making the invaders' land bloom with explosions! He assembles tank divisions to show the invaders the terror of an iron tide! He completes a carrier strike group and bombards the invaders with everything it has! You think that's all there is? Ever heard of the Nantianmen Project? These are the Chengying tactical mechs, the Xuannv aerospace fighters, the Luan Niao airborne aircraft carrier... After seeing all that, do you want to run home to your mom? But don't leave just yet! I've also got the Celestial Soldiers and Generals Project! The Lingxiao Palace Project! The Nine Heavens Palace Project! When human technology ascends to godhood, I'll make sure the invaders never know a moment's peace. Not one of them will be left alive!