Thousands of applicants were accepted into closed beta, which held for seven days between July 28 – August 3, 2009. Closed beta for an English version of the game ran from July 28, 2009 to August 3, 2009. Early access has begun on September 15, 2009. Open beta started September 22, 2009. Open beta plans were announced at Penny Arcade Expo 2009. Early access to open beta, available for players who received a beta key, proceeded on September 15, 2009. Open beta began a week later on September 22, 2009. "Dungeon Fighter Online" officially launched on June 9, 2010. It was announced on April 2, 2013, that the North American version of "Dungeon Fighter Online" would be shutting down on June 13, 2013.