Greg Trefry has designed everything from 100-person live-action simulations for museums to documentary video games to giant dodgeball battles. He co-founded the game studio Gigantic Mechanic to explore new ways to bring fun and engaging experiences to the world around us through real-world, physical and social play. He serves as director of Come Out & Play, an annual festival of street games in New York City. Greg teaches at New York University’s Interactive Telecommunications Program and NYU Game Center. He wrote the book, Casual Game Design: Designing Play for the Gamer in All of Us.