@thoughtpunks My memory is very hazy, but I think my first intro into RPGs was the Fighting Fantasy books. Not truly RPGs themselves, but I started running a game with multiple players using those rules in a very RPG sort of way.
Then I got introduced to AD&D.
Given I was barely into double digits of age, my memory is very hazy. I remember the game being based on the Death Zone from the Dr Who 20th anniversary special, with some Star Wars thrown in for good measure.