I know this has been asked before but holy poop the soundtrack is outdated.. I just really wanna listen to the prism ball race track and zombie massacre and some other tracks.
Some of the newer tracks are SO frikkin well made...PLEASE!!!
iirc the soundtrack does actually get updated, but there's a problem regarding downloading it on Steam's end
Steam's version is updated less frequently than the Google Play Music and Bandcamp versions because it's quite a hassle to update DLC. They're not completely up to date, but GPM and BC are the best places to buy them.