This morning on Xbox Wire, Rare announced Season Four is available now in Sea of Thieves free to all players with Xbox Game Pass and across Xbox Series X|S, Xbox One, Windows 10, and Steam, including all 100 levels of content with the brand-new Plunder Pass available for additional purchase to gain early access to premium rewards.
Season Four fully unveils the Sunken Kingdom – previously only explorable via the Tall Tales brought in with Season Three – filled with new treasures to claim and secrets to uncover. Within the Sunken Kingdom are six Siren Shrines, each one filled with puzzles to solve and mysteries to uncover, and a cache of deep-sea treasure available for anyone who manages to breach its heart. Pirates can also dive down to plunder the Siren Treasuries, battling waves of Ocean Crawlers and Sirens to claim the new Coral treasures kept within.
