National Tower Defense, from Thatched Houses to Interstellar Fortresses

[Apocalypse + territorial tower defense + zombie monsters + management + adventure + system] Everyone starts with a piece of land, builds buildings, lays out defenses, captures city pools, and upgrades to civilization. The only requirement is to survive! ! Others were still digging wood to make fire in primitive society, and were chased by wild beasts until they cried for father and mother. He Zichuan awakens [God-level tower defense system], and he can directly see through the blueprint of the entire era at the beginning! While others are busy building thatched houses, he has already laid out horse traps, stone wall arrow towers, and waves of wild beasts are coming to give him experience! While others are still grinding stone tools to grab resources, he holds a cannon and bombards them indiscriminately! From primitive tribes→Stone Age→Bronze and Iron Blood→Medieval Fortress→Industrial Guns→Modern Nuclear Bombs→Star Fortress! The territory is getting bigger and bigger, the defense is getting stronger and stronger, and the civilization is soaring all the way! Monster wave? As many as come will be destroyed! Rival lord? Catcher heard "little boy!" Extraterrestrial civilization? Planetary shield + anti-matter cannon directly teaches life! Global announcements flood the screen: [Congratulations to Lord Hezichuan for being the first to enter the Iron Age! [Congratulations to Lord He Zichuan for killing the medieval catastrophe wave for the first time! [Congratulations to Lord He Zichuan for becoming the master of interstellar civilization! "Is this person crazy?!" This is a tower defense story that starts from scratch, builds the territory into the ultimate defense empire across the galaxy, and conquers everything. "Don't mess with me, my defense tower is higher than your civilization level!"