Back in the day I didn't even knew about DnD, though Ive played final fantasy 1 and Dragons of Flame (a Dragonlance pc game), I even had TSR's DUNGEON board game, but didn't realized where it all came from until I was on my 20's and got into roleplaying, it was amazing finding out how so much things i liked came back to the same origin.
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From @pepumu