I had to stop playing during the third Lumen Pool because my own heart rate fell out of sync with the game, and the resulting discordance triggered a mild anxiety attack. I mean this as the highest compliment.
Just don’t play it on a Sunday evening. You will not sleep.
F.R. Vales, Independent Interactive Fiction Critic
In v2.09, reaching the Spire gave you a static screen and the text: "You arrive. Nothing is there. This was the point."
Messman’s audio work in v2.10 deserves specific praise. The signature "Spire Hum"—a low, sub-bass frequency that vibrates your controller—has been modified. It now phases in and out of tune with your own heartbeat if you play with a pulse sensor (or the PS5’s haptic feedback). When you are progressing "correctly," the hum is a perfect fifth above your resting BPM. When you doubt, it becomes a diminished chord.