I started Corsairs on the Dark as a one-weekend project, to create some unique playbooks for the Blades in the Dark setting and let people be ship-based crews. Recently I went back to wrap up the project, and as I tend to do, end up getting sucked into design questions and quandaries.
At this point, the game has:
All of those materials can be found here.
I have short summaries on about 9 factions I need to lay out and edit. I also have a quick start rules document about 30% through layout, which includes the ship combat and sea travel rules. The quick start mostly covers unique rules, flow of play, and easy reference for common mechanics. It assumes you own Blades in the Dark, and is intended to be a stand alone game.
or now, I plan to keep the project within this scope. I have ideas about some faction/trade/living economy type of mechanics, but I want to get the next version of Karma out first.