This is the North American MS-DOS Shareware version of DOOM. Requires DOS 3.1 or higher. Operation has not been confirmed. It's a game from 1993, so it's over 30 years old. The disk label is also peeling due to age. I am not a professional, so I will send it as is. The box is not in good condition. The contents are generally untouched, so I think they are clean, but please do not purchase if you are looking for perfection or are overly concerned with condition. Please comment if you would like to see any other areas.