This game reminded me of Princess Mononoke crossed with Hybras from Sunless Skies.
You are essentially a gig worker trespassing in a national park to scavenge various psychotropic mushrooms which have properties far beyond the ones we have in real life. Normal mushrooms give you 1 cent a cap (fairly consistent with real gig jobs like Amazon Turk), while the King's Breakfast could pay off your rent.
It seems that worldbuilding by far is the biggest part of gameplay. More than half of my play time was spent reading the guide book, and it could have served just as well in static form, but it made finding mushrooms later on more fun.
It's weird to say, but I think that later gameplay reminded me of nothing more than the original Zork. I remember playing Zork as a kid and finding some weird stuff and thinking "I have no idea how this all connects", and getting the idea that there was way more out there. I later went and looked at the code of this game and found that there was way more out there, but the effect still persisted.
I don't know if that particular combination of deep lore dive + unpredictable trip in the woods worked for me interaction-wise, but I appreciated the polish, descriptivenes, emotional impact and replayability of the game.