Currently working on an undersea exploration and bartering/trading game; I'm calling it Siren Silk, and I'm currently rewriting it since I have better ideas down. I think whatever I end up submitting to the jam will be more-so a proof of concept/beta thing. Main features I want in there right now are character creation, map creation (using hex-map layout), and a trading/bartering system.
I'm mostly rewriting it to get the specific things I want in done, and then I'll end up putting the proper mechanics (as in, the greater portion of the SRD) in the document. Hopefully when I get that done, if things go well, I can relax and format things properly for a properly designed document and work on art. I want to practice making logos and titling some, so this'll do well imo.