ADK Corporation (Japanese: 株式会社エーディーケイ, Hepburn: Kabushiki Kaisha ADK), formerly known as Alpha Denshi Corporation (アルファ電子株式会社), was a Japanese video game developer founded in 1980. ADK began as a developer of arcade games and is best known for their library of SNK Neo Geo titles, including for its home consoles, produced in partnership with SNK. Most notable among these are their fighting games and, in particular, the World Heroes series and Aggressors of Dark Kombat. The company closed with properties sold to SNK Playmore in 2003.