Indie or independent RPG publishing is hard to define, as the industry itself is not a mainstream publishing category. Generally speaking, it tends to mean anything not published by the current publisher of Dungeons & Dragons or the publisher of other major fads, such as Vampire: The Masquerade. In many cases, it is used to refer to small self-publishing businesses that do not rely on licensing other products, but in comparison to the wider culture, almost any RPG business would be considered a small, independent publisher, with the exception of Wizards of the Coast, a subsidiary of Hasbro.

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