Hi Esh!
Thanks for taking the time and having the patience to explain the engine code vs. the game code -- I know basically nothing about the nuts and bolts about the magic stories get to my screen, but I figured it was something complicated. I've had issues with games using the Renpy engine before, but they almost all self-resolved (except in one case where the creator sent me a link to a special download -- in that situation it seemed like my machine was too new for the game? this is a terrible summary / paraphrase but it's what I got).
Anyway, I added any and every folder I could find involving itch to my antivirus' exceptions, but I still got the exception error during character creation (this time before I got to enter a name).
Now, when I tried downloading directly, then unzipping and accessing from the subfolder in my Documents folder where I moved it, 7-zip told me these two things:
CRC failed : GildedShadows-4-win\game\archive.rpa
CRC failed : GildedShadows-4-win\game\images\Sprites\reub\reuben_sprite.psd
I don't know exactly what this means, but does it help?
I'm definitely willing to try the Steam key, though I will say with the other game that I couldn't get to work without a special secret link from the dev, I actually bought that game on both Steam AND itch (it was a sequel and the first game was that good lol), and the same issue arose when I launched from Steam.
Anyway, again, I appreciate you taking the time to try to work through this with me. I've heard really good things about this game, and I really want to play it! :D
Thanks again!