National Crisis: Donate Ten Mechas at the Beginning

The national crisis is at the forefront, and everyone is responsible! Lin Xun traveled to a parallel dimension and found that the entire world was ravaged by cave monsters. Countries around the world have been fighting against cave monsters for a long time, resulting in empty national treasury and shortage of supplies. Fortunately, the system is activated in time. As long as you donate materials to the country, you can get a tenfold rebate, and you can also get special rewards! At the same time, can I still redeem technological drawings in the system mall? Immediately, Lin Xun exchanged the blueprints to make a mecha, ready to donate it to the country for frontline operations. What? You said this is a model? When Lin Xun's mecha drove to the battlefield and killed everyone. Everyone went crazy. "Damn it! This is a real mecha." "One knife at a time. When did the cave monster become so weak?" "Where can I buy a mecha like this? I'll pay 100 million." Not only that, Lin Xun has successively donated materials to the country. Gene potions, unmanned combat robots, laser weapons... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.