Robert E. Howard's Conan: Adventures in an Age Undreamed Of is a sword and sorcery pen-and-paper role-playing game set in the world of Conan the Barbarian, the fictional Hyborian Age. Both the character and the setting were first imagined by author Robert E. Howard. Howard's original literary work has since spawned a vast franchise of novels, comic books, films, video games, board games, role-playing games, etc. Following this tradition, Conan: Adventures in an Age Undreamed Of is the third officially licensed Conan role-playing game. The two precedent games were Conan Role-Playing Game (1985–1988) and Conan: The Roleplaying Game (2004–2010), although there also had been supplements for independent generic systems, like GURPS Conan (1988–1989).

The Conan Role-Playing Game is a fantasy role-playing game published by TSR, Inc. in 1985 that is based on the Conan the Barbarian stories by Robert E. Howard, Lin Carter, Andrew J. Offutt. and Robert Jordan.