https://youtu.be/s0lnsknvkq4
Getting panned by these guys and it's not doing great in the reviews. Looks like a fun game to fool around in with your friends but it has nothing to do beyond dig up some chests that cannot be opened for a particular NPC guild.
Players will soon get fed up of that and spend their days murdering each other as there is no real gameplay to be had beyond fetch quests. There is no progression to be made beyond spending 2000 gold coins on a gold plated bucket.
You can't really call this game a sandbox as it doesn't have any facility to allow players to create stories, it's a bare bones experience.
Maybe in a years time with extensive updates there might be something there. Character leveling doesn't need to make top players invincible to new players, it could just give them more options. Trade a bit of health for movement speed, that sort of thing.
There could have been a variety of ships, some designed for speedy get aways, some for carrying a large compliment of cannons etc.
Players could have been more aligned to certain guilds and attacking players of the same guild could have been penalised but rival guilds rewarded creating a power struggle for the seas.
Those are just a few ideas that could have been implemented but for some reason they haven't. The cynic in me sees this game as nothing but a big advertisement for XBox Game Pass. Dive in for a month, have a blast until you get bored, go play some other games like Forza and maybe come back to it when some new content drops.