Behind me is the whole history of mankind!
After gaining the time machine, how can we rebuild our civilization in the future where it has been destroyed, and deal with the enemies who will destroy it?
Hide the future as a game, turn the past into a fourth scourge, and help him rebuild civilization in the future?
It's a solution, but it's not enough, it's not enough to be a "player" for this civilization to come into being quickly.
Time machines don't just travel through time and space...... Einstein, Planck, Mendeleev...... Leonardo da Vinci, all the scientists who have left a strong mark in the history of mankind, if they appear in an era and a group and gather the wisdom of the entire human civilization, what kind of power will they have?
……
A player: "How did this man named Leonardo da Vinci draw a picture that looks so similar to the real Leonardo da Vinci, is the current AI so developed?" Painting Alpha Dog?
"And this one named Albert Einstein, who actually created cold nuclear fusion with that guy named Fermi! Their theories turned out to be workable! PS
: Steampunk style, with black technology.