Hey, thank you very much. We really appreciate the review and thanks for the issues reported. Glad you like it, and we really hope you will play the final game.
I am also very happy to say as you requested, we are adding more puzzles and content, and we will be doing it as long as the game stays in Early Access (1 year planned from this point) So game will be becoming even better!
Next month the game will be released also on Steam, with a pletora of changes, updates (like new puzzles, full gamepad control, reconfigurable keyboard, etc) demo will get those changes.
Again, thank you for playing the demo, and very kind of remembering the old prototype. Yeah, as you can see, this game takes part in Hollow Hills universe ;)
Have a good one!