KOG is a South Korean game developer best known for online action games such as Elsword and Grand Chase. Its studio logo ident is played at the beginning of its games and promotional videos, marking the work as an official KOG release. Because Elsword and Grand Chase built large international fan communities, the short ident became instantly recognisable to players, even outside Korea. Online, creators now reuse it as a shorthand for a polished game opening, borrowing its official feel for fan edits, parodies and intros.