Blizzard Korea announced CCU(Concurrent User number) for Diablo3 in Korea is over 430,000. After launch of Diablo3 Asian server, 640,000 was recorded for the maximum CCU and 430,000 was Korean. This record is well above the expectation and it caused several problems with servers. Blizzard Korea announce that they have increased server capacity that can handle 640,000 CCU
The CCU record of Diablo3 in Korea is the new record for an ‘age over 18’ game. Maple Story from Nexon has the best CCU domestic record 626,852.