Preface to the Proceedings of the 2nd Knowledge Extraction from Games Workshop Matthew Guzdial, Joseph Osborn, Sam Snodgrass Welcome to the second Knowledge Extraction from Games (KEG-19) workshop at the Thirty-Third AAAI Conference on Artificial Intelligence (AAAI-19). Knowledge Extraction from Games (KEG) is a workshop exploring questions of and ap- proaches to the automated extraction of knowledge from games. We use “knowledge” in the broadest possible sense, including but not limited to design patterns, game rules, char- acter graphics, environment maps, music and sound effects, high-level goals or heuristic strategies, transferable skills, aesthetic standards and conventions, or abstracted models of games. This year we had 13 submissions! 11 of which were accepted for publication and presen- tation. In addition to the accepted talks, we also had 2 invited talks: 1) from Alexander Zook on the topic of player behavior and automatic playtesting, and 2) from Srijan Kumar on the topic of extracting and analyzing networks of discussion interactions. We would also like to thank and acknowledge our program committee without whom none of this would be possible! Program Committee Gabriella A. B. Barros New York University Dustin Dannenhauer Naval Research Laboratory Richard Freedman University of Massachusetts Amherst Nancy Fulda Brigham Young University Raluca Gaina Queen Mary University of London Sarah Harmon Bowdoin College Lara J. Martin Georgia Institute of Technology Ben Murdoch Brigham Young University Mark J. Nelson Falmouth University Daniel Ricks Brigham Young University Magy Seif El-Nasr Northeastern University Adam M. Smith University of California, Santa Cruz Adam Summerville California State Polytechnic University, Pomona Anderson R. Tavares Universidade Federal de Minas Gerais Emmett Tomai University of Texas Rio Grande Valley Vanessa Volz TU Dortmund University John Winder University of Maryland, Baltimore County Alexander Zook Blizzard Entertainment 1