Street Fighter (ストリートファイター Sutorīto Faitā), commonly abbreviated as SF or スト (Suto), is a fighting video game franchise developed and published by Capcom. The first game in the series was released in 1987, followed by five other main series games, various spin-offs and crossovers, and numerous appearances in various other media. Its best-selling 1991 release Street Fighter II is credited with establishing many of the conventions of the one-on-one fighting genre. Street Fighter is one of the highest-grossing video game franchises of all time and serves as the company's flagship series.