I can't open the zip and run the files from it without a good chance it will not run properly, which is the only thing that matters about it being a folder. My mistake about the project, probably more files than just the folder and the .exe threw me off.
It's easy to write off a game as not my type, but that's not the case here. I'd gladly mess around with a system that's deeper than "click on ground, thing grows on ground". The first thing you should add after reading this is a way to mute music or remove it entirely, I'm 80% sure it's what's ruining the entire experience; removing the piano would likely solve the problem too. The environment is bland, there's blobs of grey clipping into each other as rocks and a gradient sheet of paper as the ground. The characters are nice though, which is usually the opposite in these games.
I don't see how you can use the current mechanics in an actual game in the state that they are now. Apart from the broken indication where I can grow things, the things just grow by themselves, so you're just starting a chain reaction, rather than making it happen yourself. You're taking away whatever little control you could have in the first place. None of the other stuff matters (apart from the excruciatingly intrusive E key abuse) if you make the game interactions, as in the growing that you do, meaningful and game state changing, rather than post-indieist-quirky-play-for-10-min-and-forget-the-game-exists.