That's one really feature-creeped. I need to play it thoroughly, but the scope is impressive.
I had the same 8x8 cursor problem, try to play your game on DMG, it is near impossible.
You are pushing the engine to the limit, that's always good. Would be great to have a cartridge with all the text dumps as an actual grimoire (also a copy protection!), the text is really dumpy even for that old-school type and an avid reader like me. I definitely WILL be inspired by your work for my very old idea for Spectrum or Pico, as GBC is too low res and AB does not have enough buttons for the flow, sadly