Iron Lung PC Steam Key is a short, experimental underwater horror game created by the creator of games such as DUSK , The Moon Sliver and Squirrel Stapler . The action takes place inside a single-person, rusty submarine called Iron Lung. Your mission is to explore the ocean of blood on the barren moon, take pictures of the designated anomalies, and return before the machine breaks apart around you or before something hidden in the depths finds you.