KOG Studios is a South Korean game developer founded in 2000, best known for the online action games Grand Chase and Elsword. Its logo ident has appeared at the start of those titles and their trailers for years, so players associate the brief electronic sting with logging in and starting a session. Clips of the ident circulate among fans who recreate opening sequences, compare regional versions, or reuse the sound as a clean intro for their own gaming videos and edits.