Netmarble Games (Korean: 넷마블게임즈, Japanese: ネットマーブルゲームス), a subsidiary of CJ Corporation, is a developer, publisher, and sponsor of free online games operating a portal of the same name. The most popular game on Netmarble is Sudden Attack, a military first-person shooter that is similar to Counter-Strike. Netmarble is also notable for the first two DJMAX PC games.