no Audio on Linux (Debian Stable)
When the game starts it has no Audio at all. Campaign Missions are selectable but when starting those, they are stuck in the first narrative event, as are the Subtitles. Bug occurred after installing HoG. Reinstalling the game did not fix the error. Other games in my Steam-Debian-Library - like Dungeons II - work still normally, so an Audioerror on the OS-side seems unlikely.
I'm going to close this down, but please let us know if you had any luck finding a solution. If you came across anything specific then it'd be good to hear about it and perhaps add it to our database of workarounds for other affected Linux users!