I'm sure the idea of an underwater horror plus whatever the secondary theme will be could translate pretty well into a tabletop game of some kind (tcg, rpg, etc).
You're right- one of the Baker kids (ie child of the Powered By The Apocalypse creator) made a card driven TTRPG about aquatic salvage that has really strong, dark Helcomb County Lake Dredge Appraisal vibes.