Fun ! How many endings are there ? I managed to find about 5 ;-)
First key pressed was left : Trine taught me that there are treasures in the wrong direction XD.
The story is promising and this type of replayable is interesting.
The lighting and design is cool, but something obvious that would really make it better is a walking animation for the main caracter.
It isn't bad for Zack, but as we focus all the time on our own movement, to give ourselves just a 3 frames animation would feel great.
I might have issues with my audio setup, but there was no music or sounds =<. Try adding just a few when interacting or walking ? An ambient wind when in outside areas ?
Apart from that, i am looking for what's to come !
Good luck