I'd love to leave a good review of the demo but for some reason I cannot get past the first minigame due to being unable to click and drag the symbols into the circles. I can click "activate" but nothing else I try works. The purple magic circle seems to overlap with the bottom tray where the symbols are located. So far not a very strong first impression.
Edit: It's a resolution scaling issue. I'm using a laptop with a 1600 x 900 screen and the magic circle doesn't seem to scale correctly. When I lower the resolution to its lowest and restart the minigame the magic circle becomes comically large and over takes the entire screen, preventing me from actually clicking on other elements of the game until I restart to access settings (there should probably be a way to access settings during minigames).