I'm a old grizzled veteran of D&D.
Dungeons & Dragons really changed the gaming world: Gary Gygax and his TSR cohorts pretty much invented the fantasy RPG genre as they went along. The game heavily influenced everything that came along afterward.
I acquired the first edition Dungeons & Dragons in (I think) '79 or '80. The game included the rules, dice and the first "module" (pre made dungeon.)
When ADVANCED Dungeons & Dragons appeared with a three volume hardcover rule set we all went apestuff. Campaigns included "Hall of The Fire Giant King" and "Vault of The Drow" among many others. My oldest ORIGINAL characters are all on paper but a few years ago I scanned some of the later ones into digital:
Elric's character sheet
looked like that before it was repeatedly heavily modified by pencil, pen, markers and white-out.
We never played third edition much, one of our party did have SOME of the books, but he sold them on E-Bay years ago.
When NWN (essentially digitized third edition D&D) was released, I was hooked, and have continued to play to this day. Plenty of scary places and nasty encounters there, much as in Warcraft III.