Hyacintho is a Japanese-American electronics and software company that primarily develops video games and video game accessories, but has also developed films, books, television shows, toys, playing cards and, for a short time, television sets. The company originated in Japan, but later relocated to California in order to purchase a bigger headquarters.



The company (named Aquacin at the time) was founded in early 1980 in Japan as a producer of television sets. The television sets had negative reception, but they still sold across Japan. Eventually, sales were slowed due to other television set brands being favored by the Japanese. The company soon fell into bankruptcy when it was found that the new television sets the company was producing had a high risk of falling over and shattering due to its fragile bottom. The company was set to be closed in late 1982, but the CEO of the company, Souma Kita, saw inspiration when he saw a person playing a video game for Intellivision inside of a shopping mall on a television produced by one of Hyacintho's rivals at the time. Kita was impressed by the game, and he asked the person if he could try it. When Kita attempted to play it, he was not very skilled at it and "did not win even one round". He borrowed an Intellivision from his friend three days later and grew even more impressed. He contacted those in the company who had knowledge of video game programming, and after a long meeting with them, he decided to rebrand the company into a video game company, which took place some time after. In 1983, Epsilon and Omicron: Quest to Thorn's Castle was released for the NES following extensive promotion, being under development for an unknown amount of time. The company's television sets continued to be sold until 1985.

Video gaming

Epsilon and Omicron: Quest to Thorn's Castle was treated with very positive reception, which inspired the company to make a sequel named Epsilon and Omicron II: The Shifting Pillars, which was released in late 1985. The sequel did not gather the hype that the original did, but it still sold well and had positive reception.


  • The company's name which was used in Japanese regions, Aocintho, originates from the Japanese word for blue, "ao" ((あお)). In 2016, the Japanese name of the company changed to Hyacintho for unknown reasons.