From publisher blurb:
Dungeons ahoy!
The hundred-year hurricane surrounding the Triune Isles has suddenly dispersed. Every privateer, explorer, and cutthroat worth their salt is setting a course for the islands, salivating over the century’s worth of untouched treasure that awaits.
With the aid of a sponsor, you and your crew must set sail for the Isles and plunder their dungeons before your rivals can. But don’t bother coming back without all the booty you can carry!
This third-party supplement for Shadowdark RPG includes:
• Plunderdome: A maritime adventure featuring three dungeons.
• Sailing: New rules for ships and naval combat.
• New Classes: Explore as a swashbuckler or a sharpshooter.
• New Ancestries: Test your sea legs as a merfolk or sharkfolk.
• Sponsors: Benefactors to supply your adventuring party with equipment and specialized quests.
• Rivals: Dungeons become more dangerous and challenging as rival crawlers make their own progress.
• NPC Gallery: Stats for 68 types of humanoid NPCs.