Become a God in the Apocalypse by Upgrading Tower Defense

The end of the world is coming, and human civilization collapsed overnight. In a world where superpowers are awakening and monsters are raging, Chu He accidentally awakens the "Forbidden Zone Designer" system. [The basic arrow tower swallows the 'Twisted Bone Spur' and mutates into the 'Skeleton Piercing Tower', with a new effect: causing continuous corrosion after hitting] [The natural disaster ecological laboratory has been activated. The remains of the 'Phase Walker' are being dissected to obtain technology: short-range space folding. [The construction of the hero altar is completed, and the hero unit "Five Tiger Generals-Zhao Yun" has been added to the contract list] [Recruiting the 'Ruins Scavenger' team, the survivor 'Old Gun' experienced three vigils and was promoted to 'Sentinel Captain'] Chuhe upgraded defense towers, built technological buildings, summoned heroes, and created a natural disaster-free zone. Through infrastructure construction one after another, he rose from being a refugee to becoming a god.