Here are some adult iso files from the '90s. Some of them are games but some others are just interactive multimedia features. A significant portion of it can be included in AdventureLegends content. The rest is for those who are interested in this type of materials...
https://archive.org/details/adultcdroms
For example, there is a Strip Poker Vol2 in here and it's different from Strip Poker Vol2 (Italian) on the site, I guess this is German;
https://archive.org/details/strip-poker-vol-2