Nadir

One hundred contestants. Ten kilometers deep. One way out."Conquer the Dark, or Drown in Silence."Beneath the storm-tossed waves of the North Atlantic lies Site 004: a massive, decommissioned geothermal silo boring straight into the Earth's crust. It is a vertical tomb of rust, concrete, and crushing pressure. It is also the stage for the world's deadliest game. Ren is a blacklisted deep-sea welder with a debt he can't pay and a past he can't outrun.
He has signed his life away to the Abyss Corporation for a chance at the ultimate prize: the secrets of the Architects and a fortune large enough to buy his freedom. The rules are simple: Drop: 100 contestants begin at the surface. Descend: Navigate 50 levels of industrial horror, from the searing heat of the Geothermal Exchange to the hallucinogenic madness of the Silent Zone. Survive: Oxygen depletes.
Temperature rises. And the "Cleaners"-mindless machines of death-are always one level behind. But as Ren descends into the suffocating dark, he realizes that Site 004 is not just a game arena. It is a feeding trough. The Architects aren't looking for a winner; they are looking for a battery. The thing waiting at the bottom of the world doesn't want their skill-it wants their fear. Trapped between a psychopath named Briggs who rules the upper levels with an iron pipe, and the creeping insanity of nitrogen narcosis, Ren must use every ounce of his technical skill to keep his lungs full and his mind intact.
In the Abyss, the pressure doesn't just crush your body. It reveals who you truly are. Dive into NADIR-a claustrophobic sci-fi thriller that combines the survival mechanics of Squid Game with the cosmic horror of The Abyss.