IMPORTANT NOTE FROM THE DEVELOPER:
Game-breaking bug!
Thankfully, it's just because a file was in the wrong place.
Copy this file: [WhereYouExtractedTo]\GPM\VRTest_Data\Plugins\x86_64\OculusSpatializerFMOD.dll
and Paste into here: [WhereYouExtractedTo]\GPM\VRTest_Data\Plugins
Annoying little bug, but hopefully not too much effort to move that file!
Also, please note that this game is indeed VR ONLY. Thank you!