Millions of humans from Blue Star have descended into the Void Wilderness. From the start, each has only a small wooden cabin, and every night brings endless attacks from magical beasts.
To survive, they can rely only on defensive lines and towers!
Su Yu awakens the one-of-a-kind rare building, the [Progenitor Gene Incubator], which can extract the genes of anything and endlessly splice them into defensive towers, triggering mutations!
[Common Arrow Tower] + [Venomous Slime Genes] = [Corrosive Rapid-Fire Arrow Tower]! A single arrow melts right through a black-scaled boar!
[Stone Golem Blueprint] + [Slime Core] = [Clay Slime Miner]! An invincible mining slave that works around the clock without rest!
[Wind Blade Tower] + [Flamethrower] = [Wind Blade Flame Tower]! A sea of fire with no blind spots, covering 360 degrees!
[Thunderwing Wyvern] + [Space Gem] + [Magic Energy Stele] = [Sky Screen Folding Device]! Fold space and bounce meteors back!
While his neighbors are still struggling with air defense, Su Yu has already launched a “defense tower rental business” and become the region’s biggest unscrupulous arms dealer.
When the Abyssal Demon King arrives and sees the “Eisengard Sky War Fortress” before him, towering into the clouds, blotting out the sky, and moving freely, the Demon King falls into deep thought...
“You call this a defense tower?!”
