My Game Is the End of the World

As the meteorite hits the ground with a loud bang, it marks the end of the old era of mankind. At the same time, a new era is coming, zombies! Mutants! "I, Chen Yang, have obtained the super system. From today on, I will lead mankind on the journey to conquer the stars and the sea." "Super aircraft carriers, space battleships, super tanks, marines... There are no weapons that the system cannot do, as long as you can't think of weapons."