Quite nice, game ran very well in browser which is always good to see. I don't know if I just picked the right doors or what but I might have just gotten lucky when finding the path for the gems and the door. I'll be honest I did want to see how difficult the game would be without making a map of my own and must have just lucked my way through it as I never really felt lost, though I could easily tell it would have been possible if the map was any larger than it probably is. The models in the game are quite nice really just a few small sound effects here and there maybe expand the maze or add more levels and you have a compelling experience.
Keep up the great work!