No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $3M — a different platform, not this one.

Iron Lung

Iron Lung is a short dread-driven submarine horror game from the developer of DUSK, The Moon Sliver, and Squirrel Stapler. Set entirely within a claustrophobic one-man submarine nicknamed the \"Iron Lung,\" you must blindly navigate an ocean of blood to take photographs of key locations, and hope whatever lives below doesn't find you. There is only a single porthole on the sub, and it needs to be closed due to depth pressure, so you have to navigate purely via an incomplete map, proximity sensors, sound, and a primitive external camera which can be used to take the pictures you need to complete your mission, or to get a grainy low resolution visual of what's happening outside. Success will require resourcefulness and patience. Decades ago, every known star and habitable planet mysteriously vanished, along with whatever and whoever happened to be on them, leaving behind an empty universe of asteroids and lifeless moons where the only remnants of humanity are those who were on space