This is one of the more left-field announcements made during the PS5 reveal. Jett: The Far Shore is a cross-gen narrative adventure arriving on PS4 and PS5 in 2020. In it, you'll play as Mei, who embarks into space in order to search for a brighter future on a far flung ocean planet.
It's hard to grasp exactly how this game will play, but it seems to be narrative driven first and foremost. You'll be skimming the surface of this watery open world in a speedy ship, exploring and presumably getting into some sticky situations.
You can read more about the game over on the PlayStation Blog, where it highlights how the game will make great use of PS5's 3D audio tech. Are you interested in Jett: The Far Shore? Jet down to the comments section below.