PlayStation Sea of Thieves – Season 18 Act 3: Ashen Garrisons (2026) Trailer

The content update video for "Sea of Thieves - Season 18 Act 3: Ashen Garrisons" was released by PlayStation on February 20, 2026. This update focuses on the escalating conflict in the Devil's Roar, where Captain Flameheart’s forces have fortified their positions with new, formidable structures.

The update introduces Ashen Garrisons, a new high-intensity PvE siege experience that challenges players to infiltrate Reaper's Bones fortifications to claim massive rewards.

🌟 New Feature: Ashen Garrisons

The Reaper's Bones have constructed two massive garrisons within the Devil's Roar, designed to test a pirate's combat and traversal skills.

• Siege Gameplay: Players must overcome challenges along the ramparts to gain access to the inner areas of the garrison.

• Dynamic Traps & Tools: The garrisons feature devastating traps that can be avoided or used against enemies, as well as zip lines for quick repositioning during combat.

• Strategic Variety: Throughout the encounters, players may discover powerful weapons that change how they fight the "fearsome inhabitants".

• How to Start: These encounters can be started on demand as a Raid Voyage for a chosen Trading Company, or players can simply sail to them in the Devil's Roar.

💰 Rewards & Loot

Successfully breaching the treasure vault within a garrison yields significant rewards:

• Vault Loot: Reaching the hidden vault requires finding keys, but once inside, players can find a "mega stash" of loot.

• Ashen Lock Boxes: Bringing along Ashen Keys allows players to open specific lock boxes within the vault, containing high-value items.

• Lighthouse Logs: A new treasure item found in lock boxes. These can be sold to the Reaper’s Bones for gold and reputation.

🎁 Unlockable Cosmetics

By completing deeds and commendations associated with Act 3, players can unlock several new cosmetic sets:

• Dark Skies Ship Set: Unlocked by delivering enough Lighthouse Logs to complete specific commendations.

• Dark Skies Weapons: Earned by completing Act 3 deeds and commendations.

• Ashen Garrison Sails: A unique ship cosmetic awarded for mastering the new content.

• Forsaken Ashes Makeup: A new vanity item for your pirate.

📊 Key Video Data

✨ Conclusion

Season 18 Act 3 brings a significant shift to the Devil's Roar, turning a dangerous environment into an even more intense battleground. With the introduction of Ashen Garrisons, Sea of Thieves players have a new way to engage in "brutal combat" for the chance to earn some of the most valuable loot in the game.