Kenshi: the Beginning of the World

In the year 4025 of the Kenshi calendar, the prosperous First Empire created ten super war machines and broke out a technological war in 4096, which plunged the entire Kenshi continent into a chaotic war. In the end, the First Empire won miserably, but also gradually declined. The empire fell, and latecomers came to excavate the ruins of the decline of the First Empire, but did not find that they were the ten war machines. It was said that the First Empire had hidden them somewhere. In the latest calendar year 5018, an outsider came to this continent and embarked on his adventure... One by one (The kenshi I wrote contains martial arts realms, don't think of it as the original kenshi.)