I actually finished this game with the SFC Remake, (Wizardry VI - Kindan no Mafude) which has far better graphics and good musics. The story and gameplay of that version are nearly identical to the Steam version, but other aspects are greatly improved.
http://steamcommunity.com/sharedfiles/filedetails/?id=895826458&fileuploadsuccess=1
The Steam version has reused some same sprites for many different characters. For example, the Steam version has all these 9 characters look identical (AMAZULU,MEI-LAI,BRIGERD WOLTAN,VALKYRIE,AMAZULU QUEEN,KUWALI KUBONA,AMAZULU ARCHER,SHAMANESS,PRIESTESS), while the SFC Version has them all look very diffirent.
The music of the SFC version is also very cool. (One of the bonus contents of the Steam version is the musics from the SFC version in MP3 format, you can check it up if you want to know how good the musics of the SFC version are.)
Now that I have beaten the SFC version, I do not intend to play the steam version through., but it is good to have. ThePDF manual and hint book are cool. The coolest bonus content is the mp3 musics of the SFC version. I originally intended to buy thisCD from Amazon. This Wizardry buddle saves me some 100 dollars or so, by giving it as bonus! Now I can listen to those cool musics while driving to my workplace.
Above all, the steam version is cool, the SFC version is far cooler. I really hope that one day, the SFC emulated version of this game can be bought in Steam.