Sea of Thieves is an upcoming exploration-based pirate game from Rare. Rare is a first-party studio owned by Microsoft and they've promised
Xbox One X enhancements for the game.
The developer is known for many famous franchises including Conker and Banjo-Kazooie. However, for the past few years, the team was focused on developing Kinect games for Xbox One and Xbox 360, but that's no longer the case. Sea of Thieves is a result of that and it's a concept the team hasn't tackled before.
Full story from the WindowsCentral blog...