Economics instructors have used various media to illustrate economic topics for their students, but one media type has been underutilized: video games. In this paper we turn to the video game RuneScape, a free-to-download, massively multiplayer online game where players produce goods, become specialists, and go on quests with other players. Because the economics is apparent from the outset, instructors can use it to immediately engage with their students. We provide a guide for instructors to teach about specialization, supply and demand, market interference, and comparative advantage in this popular, long-standing game.