Bernd Brunnhofer (born July 27, 1946 in Graz, Austria) is a game designer, games publisher, and games editor who lives in Munich. He was previously a sociology lecturer. Since 1983, he has mainly worked with publisher Hans im Glück Verlags-GmbH. His greatest success has been as a publisher and editor is the game Stone Age.
Michael Tummelhofer is the pen name for Bernd Brunnhofer (the adding of Michael Bruinsma and Jay Tummelson in the credit is just a thank you for a very good economic partnership).