The first dozen adult games I played were text based, and didn't have titles. You'd find the games hidden in the strangest places. Like how Disney artists have slipped porn scenes into every cartoon they've ever released, programmers also got bored on the job, and slipped in some extra code here and there. There are likely millions of easter eggs that will never be found, unless you were really looking for them. Briefly in the late 80s-early 90s there was a trend where programmers were paid by the MB. Publishers felt embarrassed releasing the first CD games, where the disk was 99% blank because games were small. 14MB game on a 600MB disk seemed wasteful, so they asked for more, to fill the disk, but this led to filler being stuffed in. In games from that era, you can find all sorts of buried treasure.