Not bad, the constant sound that the monster makes and the music keeps the atmosphere tense. Found all three idols and finished it. The first time I tried I died after activating the second idol. But on retry I chose to scout and memorize all the idol locations first. This causes the monster to not aggro immediately. I tested this again, first by not scouting and then scouting again in another attempt. Seems like the scouting and trying to activate the idols before they are available affects the monster's behaviour.
Good game tho.