Sea of Thieves Season 21 started on September 17, 2026 with patch 3.9.0. It brings a new Season Pass, live events and more Custom Seas tools such as saved layouts and time speed controls. Rare has not confirmed the end date, but recent seasons have run about three months, so expect late December.
What is in Season 21?
| Feature | What it adds |
|---|---|
| Season Pass | New rewards to earn through Renown |
| Custom Seas tools | Saved layouts, time speed controls and ship damage switches |
| Live events | Rotating events through the fall, including a Bilge Rats Weekender on October 16 to 19 |
| Free and premium tracks | Rewards on both, premium needs the Plunder Pass |
Sea of Thieves runs on Xbox, PC through Steam and the Microsoft Store, and PS5, as of October 2026.
What is Custom Seas?
Custom Seas arrived free in Season 20 on June 18, 2026. It lets players set rules, place items and enemies, assign crews and record results to build their own game modes. Season 21 added saved layouts, time speed controls and switches for ship damage, which makes it easier to run repeatable custom events.
What long-term goals should you chase?
The biggest goal for most players is Pirate Legend, which needs level 50 in three trading companies. After that come Athena's Fortune voyages, commendations and curses. PvP players work on Hourglass allegiance with the Guardians of Fortune or the Servants of the Flame. Our Pirate Legend guide explains the fastest route.
How do you level the Season Pass fast?
- Complete deeds and seasonal challenges; they pay large Renown chunks.
- Play events while they run; they often have their own rewards.
- Mix voyages with world events to keep Renown flowing.
- Sail with a crew; bigger ships finish voyages faster.
What does Sea of Thieves help cost?
Boosting Games sells fixed-price Sea of Thieves services. Prices below are the starting prices at the time of writing (October 2026), and the exact price for your option shows before checkout. Every service is listed on the Sea of Thieves services collection.
| Service | What you get | How you play | Price | Typical time |
|---|---|---|---|---|
| Sea of Thieves Season 21 Pass Levels | We earn Renown to raise your Season 21 pass level. | Self-play or piloted | From $15 | 1–6 days |
| Sea of Thieves Trading Company Reputation | We raise reputation with the trading company you choose, such as Gold Hoarders, Order of Souls, Merchant Alliance or Reaper's Bones. | Self-play or piloted | From $25 | 2–7 days |
| Sea of Thieves Pirate Legend | We take three trading companies to level 50, claim the promotions and meet the Mysterious Stranger with you for the Pirate Legend title. | Self-play or piloted | From $159 | 1–3 weeks |
| Sea of Thieves Hourglass Allegiance Levels | We fight Hourglass battles to raise your Guardians of Fortune or Servants of the Flame allegiance. | Self-play or piloted | From $39 | 2–10 days |
| Sea of Thieves Curse Unlock | We complete the commendations and tasks needed for the curse you pick. | Self-play or piloted | From $8 | 3 days–3 weeks |
| Sea of Thieves Pro Crew Session | Our experienced pirates crew your ship. | Self-play (duo) | From $25 | Same day–2 days |
Honest risk note: Sea of Thieves uses a Microsoft account. The Microsoft Services Agreement says you cannot transfer your account credentials to anyone and must keep your password private. Self-play with our crew avoids sharing your login. Self-play and coaching keep your login with you and carry less risk than piloted orders. Read our account safety notice before you order. We never sell gold, doubloons, Ancient Coins, cosmetics, accounts, cheats or exploits.
Get help with Sea of Thieves
Pick a service and option, see the exact price before you pay, and follow every session on your private order page.
See Sea of Thieves servicesAsk Boost Up AIRelated reading: Sea of Thieves Pirate Legend Guide: Fastest Route to Level 50 x3, and our general guide to whether boosting is bannable.
How does a Sea of Thieves order work?
Every order follows the same steps, laid out in full on our how it works page:
- Pick your service. Choose the option on the product page or ask Boost Up AI which one fits your goal.
- Pay at checkout. The price is fixed and shown before you pay. You never type a game password at checkout.
- Add details on your order page. Self-play orders just agree a time in the order chat. Piloted orders add the login on the private order page, where it is encrypted.
- Follow every session. A booster approved for this game posts screenshots and updates after each session.
- Finished and locked. The job locks when it is done, the booster loses access, and any saved login is deleted within 72 hours.
Want to play Sea of Thieves for us instead? We are hiring experienced players: see become a booster.
Sea of Thieves FAQ
When did Sea of Thieves Season 21 start?
Season 21 started on Sept 17, 2026 with patch 3.9.0. It brings a new Season Pass with a Fate's Light lantern reward, a Parley flag, and more Custom Seas tools. Rare has not confirmed the end date, but recent seasons have run about three months.
How do you become a Pirate Legend?
You need level 50 in three different trading companies. Claim the level 50 promotion in each, then speak to the Mysterious Stranger. He grants the Pirate Legend title, the Legendary clothing set and the Shanty of Legends, and opens Athena's Fortune voyages.
What is Custom Seas in Sea of Thieves?
Custom Seas arrived free in Season 20 on June 18, 2026. It lets players set rules, place items and enemies, assign crews and record results to make their own game modes. Season 21 added saved layouts, time speed controls and ship damage switches.
What is Hourglass in Sea of Thieves?
Hourglass is the on-demand PvP system. You pledge to the Guardians of Fortune or the Servants of the Flame and fight other crews to raise your allegiance level. Higher levels unlock cosmetics and curses tied to PvP. Win streaks give bonus progress.
Do you sell gold or Ancient Coins for Sea of Thieves?
No. We never sell gold, doubloons, Ancient Coins, cosmetics or accounts. We raise reputation, earn Pirate Legend, level Hourglass allegiance, unlock curses and push Season Pass levels. You can also crew with us on your own account. Prices are fixed for every order.
Sources: Sea of Thieves: what's new, Massively OP: Season 21 events, Sea of Thieves Wiki: Season 21, Gematsu: Custom Seas launch.