Underground Alliance.
Shitong Fortress, brightly lit.
Inside a large room, thousands of computers are arranged, and soldiers are busily operating drones to gather mushrooms.
This opportunity is rare and will not last more than a month before the insect race army returns.
Suddenly, a soldier shouts, "Report to the commander, our D-12213 drone has discovered a mechanical creation of an unknown civilization!"
"I asked our ally civilizations; they don't have this model."
"It seems like they are writing?"
Several military leaders, leaning over the screen, stared wide-eyed at each other, discussing for a long time.
"This means... there might be an unknown civilization that has left the Safe Zone and appeared underground!"
The "Underground Alliance" consists of three major races and nine minor races.