The Sacred Armour of Antiriad is an action game published by Palace Software in September 1986 for Amstrad CPC, Commodore 64 DOS, TRS-80 and ZX Spectrum. In North America, the game was published by Epyx as Rad Warrior. The original game came with a 16-page comic book created by graphic artist Daniel Malone. The game is notable for being one of the earliest examples of the Metroidvania genre, being developed without knowledge of and concurrently with Metroid.