The World Is Frozen: I Filled up the Technology Tree in the Dungeon

The world is experiencing extreme cold and order has collapsed. The protagonist is bound to the "Civilization Fire System" at the beginning, which can exchange resources into blueprints and industrial production lines. Starting from a basement, he forcibly builds a steel dungeon that can fight against the doomsday - and by the way, he presses all the people who look down on him to the ground and rubs him.