Sea of Thieves is an adventure game that takes place on the high seas. Players are pirates who sail across the ocean, exploring islands and engaging in ship-to-ship combat with other players or AI-controlled enemies.
The gameplay involves sailing, battling, and trading with other players. Players can also discover treasure and engage in other pirate activities. The game features a dynamic weather system and day-night cycles, which affect the behavior of enemy ships and the availability of certain resources.