Need Help Finding A Specific Old Magazine “Intro to RPGs” Article

I remember reading an “intro to RPGs” type article in an old gaming magazine (probably early 1980s) which introduced concepts of RPGs by describing a fictitious RPG that was sort of a Science Fiction/Science Fantasy version of D&D: D&D-like classes (including magic-users) but in a high-tech Traveller-like game. I first thought was that...