If you enjoy plundering islands in Sea of Thieves, you can assist the developers in testing unreleased content by becoming an Insider and earning an ocean of rewards. 

Being a live-service title, Sea of Thieves provides numerous updates with new items, locations, and enemies for players to take down. Inevitability, the game also has some bugs, and that’s where your unique opportunity to become an Insider comes in. You can play and provide feedback for the game’s new features, reaping the fruits of your hard work while making the game smoother for other players.