I Have a City in the Sky

Lin Mo traveled through time and came to a super planet 50 million times the size of the Earth. This is a paradise for disastrous beasts, and humans are reduced to the bottom of the food chain. In order to survive, humans have to leave the ground and live in the city in the sky. Lin Mo also became the city lord of the Sky City. Beam cannon? Electromagnetic gun? Planetary railgun? Variable phase transfer armor? Super optical camouflage? Super intelligent management system? Antimatter annihilation cannon? Dark matter engine? Lin Mo said, I want them all! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.