The premise
The Saltspine Reach is a sun-blasted archipelago of a thousand islands where three empires' trade routes tangle and the law ends at the last lighthouse. For a generation it has been a pirate haven, the free port of Hollowport a riot of plunder, rum, and bad debts beyond the reach of any crown. You arrive with a berth on a ship and a name yet to be feared, and a choice about what kind of life to carve out of these waters - honest trade, bloody raiding, treasure-hunting, or the slow climb to a captaincy and a flag of your own.
This is a true sailing sandbox: a ship to command, a crew to keep loyal and fed, weather and reefs and rival sails on the horizon, ports to plunder or trade, and treasure that must be found, not granted. The sea does not care about you. The Round Table Conclave of pirate captains rules Hollowport by a code that is fraying. Director Elias Vane's Saltspine Company would rather buy the islands than fight for them, and pays pirates and navy alike when it suits him. Commodore Alaric Vash and the King's Reach Fleet have burned three pirate harbours already and mean the Reach to be the fourth. Mama Adaeze's Maroon Council guards the hidden inner channels no chart shows. And the Drowned Men, a fatalistic cult who worship a thing in the deep, sail waters where ships simply vanish.
The free Reach is dying - the Navy is closing in, the Company is buying captains out, the captains are fracturing, and the rumour of a sunken flagship's royal gold has set every faction racing for the fog-bound wreck-graveyard called the Boneyard. You sail into the middle of it, free to plunder, trade, hunt the treasure, or rise from a forecastle hand to a captain with a vote at the Round Table.
What this world plays like
Your first ten turns are a berth, a crew you do not yet command, and your first prize or first honest cargo. You drink in Hollowport, you cross a captain or court one, you learn which sail on the horizon is a friend and which is the gallows. The Reach is already keeping the ledger.
By turn fifty your standing with the Round Table Conclave, the Saltspine Company, the King's Reach Fleet, and the Maroon Council is tracked as real attitude, and the share you promised your crew on turn nine is a debt that decides whether they follow you into the next fight. The captain you robbed remembers. The Boneyard rumour has hardened into a heading.
By turn one hundred the free Reach is openly at war over the sunken gold and you have a flag of your own, or a noose with your name on it. Whoever you crossed, whoever you sailed for, the Reach keeps the account - and a crew collects what it is owed.
Black Flag Bay does not reset between sessions. Close the tab. The tide still turns at Hollowport.
Factions in motion
The Saltspine Company
A vast mercantile enterprise granted a royal charter to exploit the riches of the Reach. The Company values profit above all else, using its private army and influence with the Crown to enforce contracts, protect its convoys, and expand its network of plantations. They view pirates as an unfortunate cost of business and the Maroons as obstacles to be cleared.
The Round Table Conclave
The ruling council of pirate captains who operate out of Hollowport, led by the elected Pirate Lord. While each captain is a king on their own vessel, the Conclave enforces the Pirate Code, settles disputes, and organizes large-scale raids. Their existence is a direct challenge to Crown and Company authority, built on plunder and a fierce, chaotic interpretation of freedom.
The Maroon Council
The assembly of elders representing the free communities hidden within the jungle interiors of the Reach. They are the descendants of escaped slaves and indigenous islanders, fiercely guarding their independence and deep knowledge of the land. They seek only to be left alone, but will fight ruthlessly to defend their homes from encroachment.
The King's Reach Fleet
The arm of the Crown's authority in the Saltspine Reach, tasked with eradicating piracy and protecting Company assets. Operating under the rigid dogma of the Adjudicator, the Fleet's officers believe they are bringing divine order to a lawless land. Their methods are brutal, their justice swift, and their ultimate goal is the gallows at Port Royal.
The Drowned Men
A fatalistic cult of shipwrecked sailors and outcasts who worship the 'Deep Murmur,' a colossal creature sleeping beneath the Boneyard. They believe its awakening will cleanse the Reach and see the increasing conflict as a sign of its imminent return. They sabotage salvage operations and attempt to lure ships to their doom as offerings to their slumbering god.
People you'll meet
Commodore Alaric Vash
Director Elias Vane
Captain Mara 'Iron-Eye' Vane
Mama Adaeze
Reverend Mother Solara Finch
"Shiner" Jago
Places that matter
The Corsair's Cradle
A sprawling cluster of islands and cays at the heart of the Reach, defined by turquoise waters and white-sand beaches. This is the nexus of pirate activity, where the law is what a captain says it is and fortune favors the bold.
The Company's Leash
A chain of large, fertile islands to the east, tamed by the Saltspine Company. Vast fields of sugar cane and indigo stretch across rolling plains, worked by indentured labor under the watchful eyes of Company overseers.
The Verdant Maze
The dense, mountainous, and largely unexplored western islands, covered in thick jungle and riddled with hidden coves and freshwater rivers. The canopy is so thick that the forest floor is in perpetual twilight, and the channels between islands are narrow and treacherous.
The Boneyard
A desolate cluster of high, barren rock spires in the stormy northern quadrant, perpetually shrouded in a cold, unnatural fog. The sea here is a graveyard of ships, their broken hulls snagged on unseen reefs or jutting from the waves like skeletal fingers. The air is unnaturally cold.
A real turn from this world
Director Vane does not rise from his chair on the Company veranda. "I pay the Navy to hang pirates and I pay pirates to sink the Navy, and I profit either way," he says, pouring two glasses you did not ask for. "What I am offering you is the third option. The charts to the Boneyard. For a price you will not like, and a loyalty you will like less."
Out in the harbour, Commodore Vash's frigate sits at anchor, and somewhere a Round Table captain is already asking whose coin you took.
Standing with the Saltspine Company: pending. The deal is logged. In the Reach, every flag you sail under is remembered by the ones you didn't.
Why Black Flag Bay holds up over a long campaign
Most AI roleplay tools are built around a single session. They start to fall apart at hour ten and are barely playable at hour fifty. Black Flag Bay doesn't, because the world isn't living in a chat history - it's living in a database.
Mechanical truth in Postgres. Coins, inventory, NPCs, factions, locations, properties - all in real database rows. The narrator describes around the database; the database is what's true. By turn 500, your business ledger still balances and your apprentices still have the names you gave them.
Hierarchical chapter compression. Every chapter compresses into a tight summary; summaries compress into act-level summaries. The hundredth turn can pull a relevant detail from chapter two without flooding the context window.
Semantic memory. Important moments are embedded as vectors. When the current scene references an old promise, the engine retrieves the exact exchange where that promise was made - even 800 turns ago.
You'll be asked to choose Quick Start or build a character of your own.