It isn’t every day that a zombie-enthused audience invades a city. SXSW tends to bring out the best, and the undead, in people. The SkullShovel team created a QRcode-powered, mixed-reality game that will run throughout SXSWi. 2,000 players will wear special badges with their unique QRcodes that links back to the mobile-powered game. 300 Posters throughout the city provide additional information, levels, and secrets to unlock. Find a poster, scan a code. See a player, scan their badge. 44Doors-powered QRcodes connect the players directly to the mobile game and bring live-action, and the undead, to life.