That this game is one of the greatest I've ever played is far more than an understatement, and that's a fact.
This platformer tells its story mainly through music, and with some lore scattered about here and there in the form of recordings and documents/notes/that kind of thing, and it does it very well. It's on par with Outer Wilds in that it makes itself a part of your soul, that you can really only play this game for the first time once, and that it will be hard to capture that magic again.
And, praise all gods and stars above, it is $FREE.