Starting with the launch of Sea of Thieves Season 5, new Quest Boards will appear at every Outpost and Seapost in the game, and each one will feature unique, player-created treasure maps that can hide whatever secrets their original creators deemed worthy of a quest. Sea of Thieves custom maps via the Quest Board Here's how to create or play custom treasure maps in Sea of Thieves, as well as how to bury treasure yourself. When players complete these quests, both they and the map-makers will reap the rewards. In Sea of Thieves Season 5, user-generated content has come to the game in the form of the new Quest Board, a place where players can leave their custom treasure maps for other players to discover.