What I mean is, have you played D&D--that is, the trappings of D&D, the "fluff", the monsters, iconic races and magic items, etc--but using an entirely different system? Say, Savage Worlds? or Omni System? Or Hero? Or FATE? Etc. I'm not talking about "vanilla fantasy" but Dungeons & Dragons fantasy.
And please, don't say Pathfinder
And please, don't say Pathfinder