The prototype is finished and available here:https://errantcanadian.itch.io/gbx

I didn't quite get to implement the Cleric and Wizard classes, but figuring out how spells would work in this sort of game is a bit difficult. Other things didn't quite make it, either, like items from the merchant, levelling up, and music/SFX.

I'm not sure how satisfied I am with the menu-based system for interacting with NPCs. But it would be so much more difficult to do it any other way. Maybe I'll look at Advance Wars or Fire Emblem or something for inspiration for another iteration, so it feels more like a turn-based tabletop game.

This was fun! I'll probably keep noodling with what I've put together so far.