For those who were into gaming at the time of its release, the 7th Guest was known, since it's one of the first few CD-Rom games for Windows PC (there are a lot of earlier CD Rom games on different japanese systems, mainly PC-Engine aka TurboGrafx-16 since 1988, but also on Mega CD aka Sega CD and also on japan based computer format such as PC-88, PC-98, FM-Town etc..)