https://www.pcgamer.com/sea-of-thieves-closed-beta-returns-this-weekend-for-more-server-testing/

Arr, mateys! If you're looking for another chance to be a pirate-slash-guinea pig, the Sea of Thieves closed beta and server stress test is returning this weekend. From Friday, March 2 through Sunday, March 4, anyone who has already participated in the closed beta for Rare's open world multiplayer pirate game will be able to climb aboard the servers again.

A post on the Sea of Thieves site says: