Thank you so much! That feeling of calm isolated exploration was central to my idea, definitely. It's also why I didn't want to add any dialogue or too much narrative to distract from the player's exploration. I'm glad you feel I succeeded in that regard.
If you're going back to hunt for secrets, I'd wait until v1.1 due soon, I'll add more of them then ;) as well as fix the crouch button and the janky ledges, thanks for reporting!