I touched on it in: https://discourse.funtimers.club/t/what-are-you-working-on-right-now/1322/19, but I will expand on it a bit more here.
So, I have grown up in Poland. With it being a post-communist country RPG availability was far from perfect. When I was in my tweens I was vaguely aware of roleplaying games (probably from some video games magazines that were mentioning other gaming related stuff every now and then). Then I have seen D&DD episode of Dexter’s Lab and decided that I get it now - time to make my own game.
I was around 12 at a time.
So I took a cardboard folder (kinda like this one, but no table on the inside) and just wrote bunch of stuff I thought was important on the inside. It had character generation which was a single d6 roll and told you if you are a warrior, mage or genie(?), it had some names on it for characters and places (if I remember correctly). I think it barely had any rules. I don’t think there were any character sheets, but we used few d6 dice I had taken from some boardgames I had.
What it had was art. I spent days drawing monsters and other fantasy stuff on the player facing side of the folder. I remember drawing Gygax - the 30th 27th level Warrior Mage from the episode of the cartoon (below), because I thought he was super cool. I did not know who Gygax was at the time.
I also had drawn maps on a grid paper (super common paper in Poland, as it is used for maths classes) for the players to explore.
I have “run” it few times for my younger brother and his friends (they were around 8). The only thing I remember from those games is that the players got banished from the starting village, which made me sad because I spent a lot of time drawing the map of it