Gearbox originally created expansions for the Valve game Half-Life, then ported that game and others to console platforms. In 2005, Gearbox made its own games, Brothers in Arms as an example, for consoles. It became their main franchise and spun off a comic book series, television documentary, books, and action figures. Their second original game series, Borderlands, was made in 2009, and by 2015 had sold over 26 million copies. The company also owns the property of Duke Nukem and Homeworld.