Sea of Thieves is an upcoming open world pirate-themed multiplayer game from the legendary minds at Rare.

In Sea of Thieves, teams of up to four players will be able to adventure, plunder, and booze it up on the seven seas in a game that is currently sailing through a closed technical alpha on Xbox One and Windows 10.

Rare is regularly putting up developer diaries and commentaries on their YouTube channel, but this latest one shows how a smart pirate crew can totally outflank a rival ship using some cunning misdirection and a whole lot of swimming.

The gameplay video demonstrates many of Sea of Thieves' known mechanics, including its persistently-connected open world, ship battling, treasure hunting, and close quarters flintlock combat. Rare's crew drops anchor to engage a pirate ship and defend a legendary loot chest from a rival crew, and they appear to be winning. They also said that the Titanic was unsinkable.

Sea of Thieves is set for its maiden voyage on Xbox One and Windows 10 towards the end of 2017, but you can sign up to the game's insider program over here for a chance to jump in early and offer feedback.