Before You Buy This!
If you just want the music and don't care that they are 192kbps OGG files, then the songs are already in the game files for The Void Rains Upon Her Heart for free!
(This may not be the case forever, but the early access builds are easier for me if the music is external)

If you want to further support the developer of this game and you want 320kbps MP3s of every song in the game, then you should buy this!

This OST is still a work in progress that includes every song currently available in the game itself. As new songs are added to the game they will be added here too. If you buy this now then you will get all future songs for free!

(As of Early Access v8.0)
There are currently 59 songs included in this soundtrack!
Includes one bonus track that is not found in the game yet!