Just released Season 11 with several quality of life updates. I didn't realize they added a single-player/coop mode called Safer Seas in December, which allows you to play the game without worrying about getting ganked/griefed by other players. The level cap and rewards are reduced in Safer Seas, but if you want to experience the majority of the content without losing hours of effort to tuckers, port campers, or a galleon of players sinking your ship and taking all your stuff, it is worth checking out.