Why doesn my Soundblaster compatible card work?
Only 100% compatible cards are supported, and not all that claim to be are. Or so the story goes. PAS and Ensonique are known not to work, but there may be others. Running the game under Windows 9x seems to be more forgiving than DOS. Lastly consider utilities like VDMSound. Although the game runs without sound, you’ll miss a lot of background plot, and may miss important notification of attacks and new messages.