https://bugs.winehq.org/show_bug.cgi?id=48230
--- Comment #5 from belgix_oz@hotmail.com --- (In reply to Zebediah Figura from comment #4)
I'm not entirely sure what this comment is about, though, since you initially stated the game needs to play mp3 files, but the same principle applies.
The game plays both; WAVE for voice and ambient sounds, MP3 for music (not essential tough). We came to that because in prior 4.17, wine was able to play WAVE and MP3 (using mpg123) thru an ALSA sink/source. Now ALSA wine backend is only working for WAVE files.
I might be wrong but people using pulseaudio wine backend might have the same issue with MP3 files. Pulseaudio is a just sound server, not something that handle media components like gstreamer.