Skull and Shackles
Main Page >> Rules Variations
Rules for ship-to-ship combat are found in Paizo’s Skull and Shackles Player’s Guide.
Rules for fleet battles appear in Chapter 5: The Price of Infamy.
Rules for firearms and gunpowder appear in Ultimate Combat, as well as here. In Skull & Shackles, Golarion is considered to have “emerging guns,” and the secrets of their manufacture are held by the city-state of Alkenstar in the Mana Wastes:
Firearms become more common. They are mass-produced by small guilds, lone gunsmiths, dwarven clans, or maybe even a nation or two—the secret is slipping out, and the occasional rare adventurer uses guns. The baseline Gunslinger rules and the prices for ammunition given in this chapter are for this type of campaign. Early firearms are available, but are relatively rare. Adventurers who want to use guns must take the Gunsmithing feat just to make them feasible weapons. Advanced firearms may exist, but only as rare and wondrous items—the stuff of high-level treasure troves.