Played through and enjoyed the demo (windows). I'm very excited to see more, and have followed you/the project.
Feedback:
Quicker Turns. When a party member finishes their action, I have to wait a couple of seconds before the next party member can start their turn unless I hit the end turn button. The workaround, however, does not function when an enemy finishes their turn. I'd prefer no delay at all, but even just reducing it would be nice.
Retreat! That doppleganger got me good, hah. Would be nice to have a way to flee.
Hotkeys. You already mentioned this in a comment below, but hotkeys please!
Bug:
I noticed 1 bug while playing... If you choose a premade cleric with a bow + staff, they're able to use the staff/cast spells even though it is grayed out in the UI due to the bow being held in both hands.
Great work, Vlzvl!