The red team is the Tanzirilo Independence Force, and the blue team is the United Great Force. There are two teams in the game, red and blue. By December 2021, the game grossed over $600 million. By June 2020, the game had over 23 million registered users worldwide and grossed over $500 million in lifetime revenue. A sequel, Sudden Attack 2, was launched in 2016. The North American service for Sudden Attack was terminated on January 29, 2014. Sudden Attack ( Korean: 서든어택) is a free-to-play multiplayer first-person shooter online game developed by the South Korean company GameHi.
