Well that's because you're not familiar with PnP game then?
Because I can assure you the majority would be introduced the genre by D&D and WoD
And WoD had it's heyday in the 90's with it's super popular Vampire: The Masquerade that was Anne Rice Vamps, the role playing game and its subsequent lines of supernatural critters tarted up in a goth flavor
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It even got so popular a TV show was to be made which got canned, when its lead got killed. Which would have beaten shows like True Blood to the punch by decades.
I don't even like the game line but I still got to give it props for its impact