Doomsday: I Changed My Shelter into a War Fortress

"An'an, preheat the reactor and start the 'Xingtian' mecha." The Ice Age is coming and the world is frozen. While the survivors were killing each other for a piece of frozen meat, Lu Li was sitting in the fortress with a constant temperature of 26 degrees, enjoying the attentive service of the holographic intelligent agent An An. Starting in an abandoned warehouse, he not only produced nuclear fusion with his hands, but also created an "Iron Man" dozens of meters tall - Xing Tian! The huge mechanical heart roared, and the six-barreled cannon roared. He drove this steel behemoth that was modified from a crane to crush all the monsters and monsters in the wasteland with the torrent of industry. "While others survive, I ascend." The gentle scum engineer leads his mechanical army to redefine truth in the doomsday!