Back to Calendar Season 20: Custom Seas
In-Game Event Sea of Thieves

Season 20: Custom Seas

Thursday, June 18, 2026
Season 20 will be arriving just after the midpoint of the month, marking the rollout of the highly anticipated Custom Seas. This new, free feature set puts control of the seas into players’ hands for the first time, offering a generous range of customisation options and admin tools including creature spawning, fast travel and scoreboards with which to invent your very own game modes! Free Camera tools are also included, making it easier than ever to capture your own Sea of Thieves memories in high definition. The new Season marks a slight departure from our recent update schedule in that it no longer features a three-Act structure. Instead, the initial set of Custom Seas tools all arrive together in the June update, along with a collection of fresh Deeds to test your skills.

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