Hi, I checked out your demo for a bit and I'm enjoying it so far (I made it to finding the first party member). I liked the action and questions raised by the introduction, which was also just long enough to serve as a tutorial without dragging out. I liked the tactical combat, and I liked that once the game starts, it was left up to me to explore, interact with things, and figure out how to progress. Some enemies were too strong to defeat and will have to be fought later, which is something I always enjoy seeing. I am going to play more tomorrow.
One thing that I would have liked is a faster run speed; running is barely faster than walking. There was also something that confused me, which is that at one point I was not able to attack the back column of green thorn beetles until they moved up one column, but in the next combat, that wasn't the case. Not sure if there was a buff or debuff that had that effect (I didn't notice yet that you could mouse over them for help). I also had trouble remembering the terminology of rank vs. flank; I kept thinking of them as rows and columns, but that might just be a language difference.
Also, I was not able to install the game through the Itch client; I think you need to specify Windows as the platform for the download in order for this to work (I actually could not even search for the game in the client, which may be for the same reason). I would actually recommend Itch's butler tool for uploads; I personally find it more convenient, and it also enables improved patching and auto-updates for client users.