Explore a Drowned City in Submerged

Submerged drops you into an unknown drowned city by boat, with a sick brother who needs to be nursed back to health.  You'll climb buildings and find hidden caches of supplies you'll need to help him while exploring this mysterious city.  The game uses Unreal Engine 4, and is designed to explore without the pressure of failure-- explore at your own pace without worrying about death, and learn the secrets of the city and your character.