The King of Fighters is a series of fighting games by SNK that began with the release of The King of Fighters '94 in 1994. The series was initially developed for SNK's Neo Geo MVS arcade hardware and received yearly installments up until its tenth entry, The King of Fighters 2003 — thereafter, SNK moved away from annual The King of Fighters releases and games adopted a Roman numbered format, while simultaneously retiring the use of Neo Geo.