What it is
Broken Reefs is a turn-based naval game. You weigh anchor with what you can afford, pick your way across one chart that gets worse the further down it goes, read what each monster is about to do, and decide when there is enough gold in the hold to risk bringing it home. There is no reflexes-based twitch element: every fight shows you the blow before it lands, at either of two ranges, and resolves on what you did about it.
It began as a prototype for naval mechanics inside a larger game and stands on its own well enough that it now ships as a standalone mini-game that keeps evolving in place.
Who else is out there
Nobody. It is one player's sea. The wreck with your ship's name on it is yours. The other wrecks on your chart are the game's own invention, and no other player sank them. The Daily Charter gives everyone the same chart on the same day, and there is no board: the only way anyone hears about it is if you tell them.
The no-account promise
There is no account, no email, no password, and nothing to recover if you lose it. A career is identified by a session id in this browser's local storage and nothing else. Clear that storage and the career is gone: not archived, not recoverable, gone the way a real ledger would be if you dropped it overboard.
That is a trade, stated plainly: convenience for permanence. If that trade is wrong for you, this is not the game to keep progress you need to keep.