Some thoughts as I've played through the game:
- It's a little awkward to turn when the mouse keeps moving out of the window. If feasible, I'd suggest either using a "relative" mouse-mode (if the engine provides one), or warping the mouse to the centre of the view on each update (after using its position to rotate the player).
- The start is intriguing: the initially-empty mirror, the thing in the tree, the offer, the slowly-building reflection.
- And now I'm in a strange place, with other people; I am liking the weirdness of this!
- Alas, I then fell through the floor somehow. :/
- Having restarted the game, I've gotten a little further. I've discovered that I can "become" other people, playing out their experiences--experiences that seem to affect each other.
- However... the control issues--in particular the above-mentioned mouse problem and the fear of falling out of the world--are really hampering my ability to explore, and to enjoy the game.
So, for now I'm going to leave my playing of it here.
That said, I'm interested in what you're making here, I do think. ^_^