Welcome to Dungeons and Dragons! D&D is a fantasy tabletop role-playing game. It was first published in 1974 by Tactical Studies Rules, Inc. (TSR). The game has been published by Wizards of the Coast (now a subsidiary of Hasbro) since 1997.
This group is for players, DMs, and designers alike. Feel free to post to the forums about questions, rules, model requests, etc. I am online most days and I would be happy to answer any questions you might have.
Sources: “Dungeons & Dragons.” Wikipedia, Wikimedia Foundation, 27 Apr. 2018, en.wikipedia.org/wiki/Dungeons_&_Dragons.