Insomniac Games' Song of the Deep is a charming 2-D action-puzzle game in a rich underwater fantasy world. The company's first "Metroidvania"-style game, the story revolves around young Merryn, a 12-year old girl who lives by the sea. When her fisherman father goes missing one terrible night, she must descend below in her own makeshift submarine to find him. There, she discovers that the mystical world of sea creatures, sunken wrecks, and ancient civilizations he told her about in bedtime stories actually is real.
Song of the Deep's reveal trailer.