Sudden Attack is a free-to-play FPS MMO (First Person Shooter Massively-Multiplayer Online Game) which was the star feature at the e-Stars Seoul 2008, an international e-sports
tournament in Korea where over 1400 e-teams from China, South Korea and Japan joined the preliminary matches to get their hands on the highest cash prize in the world.
Status: Closed Beta
Official Site: http://www.suddenattacksea.com/