That's really strange, other people seem to be able to run it without issues on windows. The 4 orb ability gives you mouse look, were you not able to look around?
I was definitely able to look around.
The issue was that when the visuals 'loaded up', my directional movement keys stopping working properly.
Interestingly I could slowly 'inch' in the direction of an arrow key (about half a foot a second), particularly if I was holding the key down before the graphics fully loaded. This let me pick up the first few orbs.
However at the mouse-look stage I could only 'inch' towards the corner of the room furthest away from the door (in the direction of the forward and left movement keys without mouse look, if you get my meaning).
This might be an issue connected to my computer being slow and not completely able to handle the graphics. FPS was noticeably 'blurry' but playable. Perhaps 10FPS?
Thanks for replying, and congrats on the game design!