Monster Invasion: My City Defense Can Be Upgraded Infinitely

Millions of dinosaurs poured into the earth from space channels. Godzilla and King Kong invaded in groups, forming swarms of zerg and overwhelming mechanical life... Countless monsters invaded the earth from different dimensions, and humans could only live huddled in base cities. Lin Xuan got the "Infinite City Defense Upgrade System", collected various resources, continuously upgraded the city defense, and built an invincible city of his own! "A thousand dinosaurs attacking my city? Too few, not enough to see." "Surrounded by ten thousand rock giants? Aren't you sending me stones? That's great." "Cybertron sent a mechanical army? All of them recycled scrap metal for me!" While others were hiding in the base city and shivering, Lin Xuan's city was already indestructible. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.