Sebastian Deterding is a Reader at the Digital Creativity Labs at the University of York (York, UK). He has been an RPG player and designer for more than 20 years and has published ethnographic portraits of the German pen-and-paper RPG subculture. He is founder and organizer of the Gamification Research Network and co-editor of The Gameful World (MIT Press, 2015), a book about the ludification of culture. He holds a PhD in media studies from Hamburg University. See also: http://codingconduct.cc/. José P. Zagal is an Associate Professor with the University of Utah’s Entertainment Arts & Engineering program. He wrote Ludoliteracy (2010) and edited The Videogame Ethics Reader (2012). In 2016, he was honored as a Distinguished Scholar by the Digital Games Research Association (DiGRA) for his contributions to the field of game research. He also serves as the Editor-In-Chief of DiGRA’s flagship journal Transactions of the Digital Games Research Association (ToDiGRA). He received his PhD in computer science from Georgia Institute of Technology in 2008. See also: http://www.eng.utah.edu/~zagal/.