Why are there no comments? I love it, it's absolutely brilliant. It's so relaxing to pick a spot and chill.
I have only two complains:
1) it takes quite a long time/it's quite confusing to reach a specific "biome". I wish there was a main hub, or a map that you can open with a keyboard shortcut (maybe assign to M?) that allows you to fast-travel to a certain biome. Sometimes I already know from the start the spot I want to choose, and it gets bothersome to reach certain biomes. Also more often than not I get straight up lost...
2) I wish that on the customization menu there was a "keyboard controls" tab, with a recap of which keyboard buttons are used to do stuff.
Aside from those issues, I think this is such a cool concept and execution, it even has a sort of "pomodoro technique-like" timer, meaning that you can choose for how long you want to study and how long you want to rest: while studying you cannot move around, and when resting you can do whatever you want and interact with stuff.
Really great job, very original and useful. I'm extremely picky about stuff that I use/listen while studying, and this is certainly one of my favorites.