This is awesome!
Don't have much more to say about this one than what has already been said. This feels extremely polished already and like a perfect demo of what could be a full fledged game one day. I think the only small critique for me would be that I would have preferred the key for dropping/summoning the light to be the mouse click instead of shift. But that's something that a settings menu and rebinding would remedy easily enough.
Overall though this is absolutely amazing. I hope you all are happy with what you accomplished, as you definitely should be. Incredible work!