The Apple and Commodore versions debuted on the
Billboard magazine software sales chart at number two in July 1985. In January 1986, it was awarded a "Gold" certification from the
Software Publishers Association for sales above 100,000 units. It is Broderbund's bestselling Commodore game as of late 1987. Sales of
Karateka surpassed 500,000 units by 2000. The game received generally favorable reviews from critics. In early 1985, Jeff Hurlbert of
Hardcore Computist said the "recently released"
Karateka "is the most recent and best illustration of a trend towards computer games that look like movies". He called it "a breakthrough" where art "merges with technology to produce a game almost as much fun to watch as to play". In January 1985,
Computer Entertainer rated the Apple II version 7½ out of 8 stars, praising the visuals, animation, sound effects, music, karate moves, and story line, but criticizing the blonde-haired appearance of the karateka and princess in a Japanese setting.
Computer Entertainer later rated the Commodore 64 version seven out of eight stars in July 1985, praising the "visually stunning" graphics and "authentic" moves, but again questioning "the use of a blond hero and heroine in a Japanese setting". In May 1985,
Enter praised the "beautiful graphics, superb animation and realistic sound effects". Billy Gillette called it "a four-star game" but was disappointed with the lack of a
score, and Phil Wiswell criticized the lack of a two-player option but concluded with, "wow, what a game!" In October 1985,
Compute! called
Karateka "a nominee for the Most Underrated Program of the Year. It's a program that must be seen to be fully appreciated". Although criticizing the necessity to restart from the beginning upon defeat, the review stated that the Apple II version "has by far the best animation I've seen in an Apple arcade game. The smoothness of the animation ... makes the game almost as enjoyable to watch as it is to play".
Info rated the Commodore 64 version three stars out of five, praising the animation but disliking its simple and two-dimensional game play, and concluding that it "needs more depth".
Antic in 1986 liked its "cartoon-quality" graphics. Although critical of the "often slow" joystick control system, the magazine concluded that
Karateka was "fun and extremely addicting". According to
Dragon, "this game has a great plot, animation that'll dazzle your eyes, and player-controlled martial arts action". French magazine '''' in issue #33 rated the game 4 out of 5 and praised the graphics. ==Legacy==