This is really awesome! The visuals are striking in their simplicity and the subtle use of color really works. Also, the sound design is fantastic, the intro especially sounded really good in my headphones, a very immersive experience.
Some of the controls where not the most intuitive, I felt like I fumbled around trying to figure out where to click more than I would have liked, but otherwise it felt great. I really liked the tomes on the side, really enhanced the "I need to research this..." aspect of these kinds of games. (also a really clever way to work around keeping everything on a single screen instead of having multiple places to go to)