Hi!
I also have no sound at all.
My specs:
Mac mini 2014
Intel IRIS graphics
8Gb RAM
OSX 10.10.4 Yosemite
I'm using audio through USB to external DAC. I was suspecting this might be the cause (all other apps/games work fine though and never had a problem with this).
However none of the other sound outputs work either (HDMI out to TV, optical to DAC or internal speaker).
There is no sound at all anywhere in the game. Intro, menus or the game itself.
I bought the game from the App store, not Steam and can't locate the log files as instructed in the Issue reporting thread.
I'll try to see if I can find them and attach a save file + the log later.
Hoping this gets fixed as the game is pretty darn epic
Cheers,
Mikko