Developed by Athena, Daioh was released in July 1993.
The title of this game translates from Japanese as 'Great King'.
In 1997, Daioh's staff established a new company, called 'Warashi', their first game was "Shienryu
". The game is remarkably similar, and feature an identical power-up system, and the first level is a remake of the first stage of Daioh.
A pseudo-sequel to the game entitled "Daioh Gale" appears as the sample level in Athena's 1994 title, Dezaemon - Kaite Tsukutte Asoberu.
A follow up to 'Daioh Gale', 'Daioh Gale ver.2' appears as the sample level in Athena's 1996 title, Dezaemon Plus.
A parody of the game entitled 'Daioh-P' appears as a sample level in Athena's 1997 Sega Saturn release, Dezaemon 2.
Mark Carmichael holds the official record for this game with 144,900 points on July 15, 2006.