Koei Tecmo Holdings Co Ltd is a game software development company based in Japan. The company’s segments include Game Software, which develops and sells game software for PCs and videogame systems; Online & Mobile; Media & Rights, which develops and sells game software related products such as books, CDs, and DVDs; SP, which develops commercial amusement; Amusement Facilities Operation, and Other, which includes real estate management and venture capital. Koei Tecmo generates the vast majority of its revenue from its Game Software segment. The firm has operations in Japan, North America, Europe, and other countries. Koei Tecmo derives substantially most of its revenue from its Japanese operations.