In addition to his work as surveyor and mapmaker, Rocque was an engraver and map-seller. Behaim was a German mapmaker, navigator, and merchant. Hotchkiss offered his services as a mapmaker to Brig. In "The House of the Frankfurt Mapmaker," there is mention of thirteen dresses. Sauthier came to America before the Revolution to work as a mapmaker. After this, a Mapmaker round was held. The series included MapMaker, a simple grid-based level editor. Soon, using fictional "copyright traps" became a typical strategy in mapmaker design to thwart plagiarism. A MapMaker is also available that can create playable levels.