Song of the Deep is an action-adventure game developed by Insomniac Games for Xbox One. The game follows the story of a young girl named Merryn who sets out on a journey to find her father who has gone missing during a fishing voyage. The game is set in a vast underwater world and combines exploration, skill, and suspense with an unforgettable narrative.

The gameplay of Song of the Deep is unique and challenging. The game features a non-linear interactive world with over 200 treasures to collect. The player must equip their submarine with 30 upgrades and 15-plus abilities to access new areas of the sea. The game also features battles with creatures like lantern jellies and giant bosses like The Watcher. The player must outwit, outmaneuver, and battle these creatures to progress through the game.