A Fortress is a type of Island that hosts Fortress Raids. A fortress is defined as any location that is marked and named, that does not spawn Animals and cannot be subject to Quests, and is not a Outpost.
Fortress Raids[edit | edit source]
While normally dormant, a Fortress will occasionally appear with a large skull cloud hovering above it, visible from a distance. This will happen approximately three hours after the last raid on the same server has been completed, however sometimes this will occur much earlier than that.
When this cloud is present, the fortress is active, meaning that a Skeleton horde has gathered there, and pirates can choose to engage in a raid of that Fortress.
Upon arriving at an active Fortress, pirates can fight their way through waves of Skeletons to the central Fortress structure. Horns signal the arrival of new waves of Skeletons, which occurs briefly after all Skeletons in the previous wave are defeated. There are roughly 10-15 waves per raid.
There seem to be two types of Skeleton Fort events. The harder type spawns Skeletons of all types with a couple of them carrying firearms and explosive barrels. The easier type of forts only spawn waves of regular skeletons with swords. Every two to three waves a firearm or an explosive barrel skeleton can spawn, but it seems to be rarer. It is unknown whether these easier forts are intentional or the result of a bug as the reward pool is generally the same.
At the final wave, the Fort's Skeleton Captain will spawn. It will drop a Vault Key upon death and also cause the other remaining Skeletons to fade away, the Vault Key can be used to unlock a Fortress Vault that contains a large amount of loot. One crew will generally need to make multiple trips to collect it all.
Raiding a Fortress can prove highly difficult, and multiple pirate crews may wish to team up in order to tackle it. The skull cloud can appear at one of the Fortresses.
The eyes of the skull cloud are not an indicator for the difficulty or other ships near the fort.
All of the fortresses are virtually the same, with the exception of the Molten Sands Fortress at the Devil's Roar, which has an active volcano to make things harder for players, but also rewards a successful completion with the Devil's Roar versions of all regular treasure, making it a high risk high reward undertaking.
Fortress Vault[edit | edit source]
The Vault is unlocked using the Vault Key dropped by the Skeleton Captain. It contains a large amount of randomised Treasure, worth between 12,000 and 20,000 Gold in total. The Stronghold Skull, Stronghold Chest, Stronghold Gunpowder Barrel and Crate of Ancient Bone Dust are all guaranteed to spawn in the center of the Vault. Ordinary Gunpowder Barrels spawns very often in the Vault too. There is no way to open the Vault without the Vault Key. While the Vault Key can be used to open any Vault, only the Vault of the Fortress that was recently raided will contain any Treasure.
List of Fortresses[edit | edit source]
Outposts and their Map coordinates: