Demo seems broken, hit new game and I got to a white screen with a few coloured dots floating gently around and I could click to generate a puff of smoke, but that was it.
Additionally the options seems to be broken as well, selected FULL as the screen size and after restarting the game it started in the smallest screen size even though the option was set to full. And changing the screen size option again just changed from full screen to 4x but none of the other options. And the full option was 4x and 4x option was full. Pretty weird.