Hardcore Military + Subnautica + Iron Lung + Starsector + AI Shipgirls
Chen Du arrives on a deep-sea planet and spends ten years scraping by before finally buying a secondhand submarine held together by patch after patch.
Creditors come knocking, pirates block the way, and even the fish on the seafloor are worth more than people. He thinks he’s doomed to rot in four thousand meters of dark water for the rest of his life.
Then he hauls up an old Federation AI with silver hair and blue eyes.
“I am the onboard core of the Dark Tide. From today on, you are my captain.”
The broken vessel is transformed. He can mine deposits no one else can find, explore ruins no one else dares enter, and turn places others consider death traps into shipping lanes.
From one old secondhand submarine to a deep-sea fleet.
From a nobody captain at the Krell Hub to a man whose name no one across the colonies dares speak aloud.
But the deeper the sea, the greater the secrets. Things from the old age are waking. Mega-corporations, cults, pirates, and Cthulhu-like abyssal creatures are emerging from the shadows, one after another.