Redownloading the game seems to have fixed the problem.
Hey! Thank you for supporting the bundle and for checking out Golden Treasure.
I'm glad the issue fixed itself after reinstalling - not sure what happened there for the audio to be missing. We'll have to keep that in mind in the future though. I think we're going to try updating the build here to the latest Steam version soon, so hopefully that will make things a bit more stable.
Thanks again!