International Karate

International Karate is a fighting game published by System 3 for the ZX Spectrum in 1985 and ported to various home computers over the following years. In the United States it was published by Epyx in 1986 as World Karate Championship. It was the first European-developed game to become a major hit in the United States, where it sold over 1.5 million copies, but it drew controversy for its similarities to Karate Champ (1984), which led to Data East filing a lawsuit against Epyx. International Karate +, a successor which expanded the gameplay, was released in 1987.