I Use Technology to Conquer the World

In the long river of history, only the torrent of the times is unstoppable! When machine guns, steam engines, trains, heavy artillery, airships, and ironclads first appeared, they were destined to amaze an era. Chen Tong traveled to a world full of crises and became the monarch of a small country. With the help of the system, he will use the technological gap of an era to crush his opponents and dominate the world! We create the era, we lead the era, and we end the era! The first stage: steam civilization crushes cold weapon civilization.