Concurrency is a big deal for most MMOs. Total numbers of accounts and subscribers might tell you how many people play the game, but concurrency tells you how many people actually play the game on a regular basis. So when Dungeon Fighter Online breaks its previous concurrency record in China, that's good news for the game and the development team. After setting an earlier record with 2.6 million users, the game peaked at just over 3 million concurrent users in June.
Dungeon Fighter Online