Steel Coffin

Steel Coffin is a single player survival survival game with a horror theme. It was developed by narta and was released on July 29, 2025.

Alone and lost in the depths of a crippled submarine, you play as a deep-sea engineer fighting to survive. Explore pitch-black corridors, conserve light, and confront terrifying monsters that roam the flooded halls. Your only hope is to navigate the maze-like vessel, restore power in the control room, and escape the ever-present darkness. Every step deeper into the submarine uncovers new threats a…