Leather Goddesses of Phobos (1986), Infocom’s first “sex farce” PC game, is an interactive fiction computer game. Among other notable features, it included puzzles that were nearly impossible to solve without hints from the accompanying add-on materials (the so-called “feelies”).
Written by Steve Meretzky, LGoP was released in 1986 for most computers of the day. Famously, the game featured selectable “naughtiness” levels ranging from “tame” to “lewd”. The game featured no copy protection as such, but like many Infocom games, it included puzzles that were nearly impossible to solve without hints from the accompanying add-on materials, the “feelies”, delivered within the game box. Among others, these included a small scratch and sniff card which bore seven numbered areas. At certain points in the game, the player would be instructed to scratch a certain number and then whiff the resulting odor. Despite being a “sex-farce”, the included scents were relatively innocuous, such as pizza and chocolate. Second, the game came with a 3-D comic book, The Adventures of Lane Mastodon (complete with 3-D glasses) which contained vital hints to the game. Other vital clues yielded a double-sided map of a specific game area. These creative measures on copy protection earned Leather Goddesses a SPA Excellence in Software Award for Best Software Packaging in 1987.