I finished the game, its nice! I got thrown off the right path mid game due to a bug - if you walk on a place that you have revealed the glyph and then go to another place adjacent with revealed glyph it will still show the glyph from previous place.
Another thing is that I had incomplete information, I am not sure if this was intended or not. Even thou I had revealed all the glyphs on the map, one out of four of main objective was missing, now I did not SEARCH all the statues, so maybe that's how you find it, but I searched half of the statues and found nothing. However it still was enough for me to piece together how to win.
Also it took too long to finish the game, I feel like anyone with less patience would have given up. Overall nice idea thou.